Download Swedish Marine Sciences Conference

Swedish Marine Sciences
Conference
Umeå, 10-12 November 2014
© Katarina Stenman
SVENSKA HAVSFORSKNINGSFÖRENINGEN
THE SWEDISH SOCIETY FOR MARINE SCIENCES
1
SVENSKA HAVSFORSKNINGSFÖRENINGEN
THE SWEDISH SOCIETY FOR MARINE SCIENCES
Contents
Organization and sponsors
3
Program
4
Keynote speakers
7
Dyrssen award
11
Oral presentations
12
Poster presentations
39
Conference dinner at Guitars – The Museum
54
List of participants
55
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SVENSKA HAVSFORSKNINGSFÖRENINGEN
THE SWEDISH SOCIETY FOR MARINE SCIENCES
Organization & sponsors
The Marine Sciences Conference 2014 was organized by:
Svenska Havsforskningsföreningen (SHF)
Jenny Ask
Sofie Backman
Hanna Berggren
Amund Lindberg
Kristina Viklund
The conference was kindly sponsored by:
SMHI – Swedish Meterological and Hydrological Institute
HAV – Swedish Agency for Marine and Water Management
Umeå University
Umeå Marine Sciences Centre
Department of Chemistry at Umeå University
Department of Ecology and Environmental Science at Umeå University
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SVENSKA HAVSFORSKNINGSFÖRENINGEN
THE SWEDISH SOCIETY FOR MARINE SCIENCES
Program
Monday 10 November
10.30
Registration and coffee
12.20
Welcome! Opening of conference
12.30
Jeffrey A. Hutchings, keynote presentation: Ecological and evolutionary consequences of
over-exploitation in marine fishes
13.15
Pär Byström: Reciprocal intraguild predation interactions in juvenile predators and prey:
effects of temporal separation on recruitment patterns
13.35
Anders Forsman: To what extent can existing research help forecast climate change impacts
on biodiversity?
13.55
Agneta Andersson: Ecosystem effects in the Baltic Sea at future climate change projections implications for ecosystem management.
14.15-15.00
Coffee break
15.00
Johnny Berglund: Underwater maps for marine spatial planning and management
15.20
Johanna Bergkvist: Direct quantification of nutrient uptake in chain-forming diatoms during a
spring-bloom in the Baltic Sea
15.40
Siv Huseby: The key role of phosphorus and nitrogen for cyanobacterial composition in the
northern Baltic Sea
16.00
Malin Olofsson: Effects of phosphorous limitation on nitrogen and carbon fluxes in two
strains of the cyanobacterium Nodularia spumigena
16.20
Agnes Karlson: High reproductive success and larger trophic niche in amphipods exposed to
cyanobacterial blooms
16.40-19.00
Ice-breaker and poster presentations
Tuesday 11 November
09.00
Katrine Borgå, keynote presentation: Diverging findings on siloxane biomagnification in
aquatic food webs?
09.45
Anteneh Assefa: What can we learn from dynamics of polychlorinated dibenzo-p-dioxins and
dibenzofurans in Baltic Sea sediments?
10.05
Terry Bidleman: Air-water exchange of natural brominated compounds in the northern Baltic
Sea: Current status and possible influences of climate change
10.25-11.00
Coffee
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SVENSKA HAVSFORSKNINGSFÖRENINGEN
THE SWEDISH SOCIETY FOR MARINE SCIENCES
11.00
Daniela Figueroa: Allochthonous organic matter - a major driver of bacterial production in
sub-arctic estuaries in the Baltic Sea
11.20
Markus Lindh: Baltic Sea transplant experiments uncover distinct water mass-dependent
responses in bacterioplankton community composition and activities to changes in salinity
and dissolved organic matter
11.40
Joanna Paczowska: Humic substance and phosphorus shape the size – structure and pigment
content of Baltic Sea phytoplankton
12.00-13.15
Lunch
13.15
Asbjørn Vøllestad, keynote presentation: Climate effects on fish migration: eel and salmon
as examples
14.00
Petter Tibblin: Evolutionary divergence of adult body size and juvenile growth in sympatric
subpopulations of a top predator in aquatic ecosystems
14.20
Per Larsson: Data storage tags reveal a year’s life of Baltic Sea pike (Esox lucius)
14.40
Stina Israelsson: Bacterial communities of various fish species are specific and different from
their seawater environment
15.00-15.40
Coffee
15.40
Elin Almroth-Rosell: Modelling the oxygen dependent benthic phosphate fluxes in the Baltic
Sea - A new approach
16.00
Erik Gustafsson: External alkalinity loads vs. internal generation - the influence of noneriverine alkalinity sources in the Baltic Sea
16.20
Ida-Maja Hasselöv: Seawater chemistry governs performance and influence potential
negative environmental effects of seawater scrubbing
16.40-18.00
Poster Session and coffee
16.45-18.15
SHF Annual Meeting
19.00
Conference dinner at Guitars – The Museum
Wednesday 12 November
09.00
Anja Engel, Keynote presentation: Pelagic ecosystems in a high CO2 world: Can we predict
what the future may bring?
09.45
Carina Bunse: Ocean acidification causes a community wide bacterial pH stress response
10.05
Juan José Rodríguez Serrano: Effects of increased pCO2 and terrestrial organic matter on
phytoplankton and bacterioplankton activity and community structure
10.25-11.00
Coffee
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SVENSKA HAVSFORSKNINGSFÖRENINGEN
THE SWEDISH SOCIETY FOR MARINE SCIENCES
11.00
Dyrssen Award presentations
11.10
Per-Arvid Berglund: Razorbill (Alca torda) breeding success decreases with laying date –
potential for complementing sprat (Sprattus sprattus) stock assessments and ecosystem
management in the Baltic Sea?
11.30
Natalia Barrientos: Southern Ocean paleoceanographic changes at the Eocene-Oligocene
climate transition: a meridional deep-sea transect of the Kerguelen Plateau
11.50-12.00
End of conference
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SVENSKA HAVSFORSKNINGSFÖRENINGEN
THE SWEDISH SOCIETY FOR MARINE SCIENCES
Keynote speakers
Professor Jeffrey A. Hutchings
Dalhousie University, Halifax, NS, Canada
Professor Hutchings has a broad scientific interest including life-history evolution,
alternative reproductive strategies, salmon aquaculture, phenotypic plasticity, organismal
responses to directional temperature change, conservation biology, and how to
communicate science to the society. He is world-famous for his work regarding the
evolution of fish life histories and the collapse, recovery and sustainable harvesting of
marine fishes. He will give a presentation on the ecological and evolutionary consequences
of the overexploitation of marine fishes.
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SVENSKA HAVSFORSKNINGSFÖRENINGEN
THE SWEDISH SOCIETY FOR MARINE SCIENCES
Professor Katrine Borgå
Oslo University, Norway
Professor Borgå is an ecotoxicologist with long experience in studying the mechanisms and
processes of contaminant distribution and accumulation in Arctic marine, large lake and
sub-tropical forest food webs. Her work includes the influence of biogeochemistry on the
(re)distribution of contaminants (legacy and emerging) in the context of a changing climate,
and other environmental stressors that ecosystems are exposed to. In her presentation she
will talk about siloxanes, which are current-used high production volume chemicals, and the
contradictory results regarding their biomagnification in aquatic food webs.
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SVENSKA HAVSFORSKNINGSFÖRENINGEN
THE SWEDISH SOCIETY FOR MARINE SCIENCES
Professor Asbjørn Vøllestad
Oslo University, Norway
Professor Vøllestad’s main research effort concerns the variation in life history evolution
and population dynamics in fish. In order to understand the evolutionary and ecological
processes that affect populations at different spatial and temporal scales, he has focused his
research on individual traits that are very important for fitness such as growth, age at
maturation, fecundity and egg size. He will present some of his extensive work regarding
how fish migrations are influenced by factors related to climate change.
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SVENSKA HAVSFORSKNINGSFÖRENINGEN
THE SWEDISH SOCIETY FOR MARINE SCIENCES
Professor Dr. Anja Engel
GEOMAR Helmholtz Centre for Ocean Research, Kiel, Germany
Professor Engel has an extensive research career within the field of organic matter cycling
and how that is influenced by various environmental factors in the pelagic ocean. Her
current research regards climate change and ocean acidification, and how the complex
interrelationships between the marine carbon cycle and microorganisms will affect the
future CO2 balance in the Arctic Ocean. She will present results from extensive experiments
on how ocean acidification affects pelagic food webs.
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SVENSKA HAVSFORSKNINGSFÖRENINGEN
THE SWEDISH SOCIETY FOR MARINE SCIENCES
Dyrssen Award
We proudly present this year’s Dyrssen Prize Winners!
Masters category (30-60 credits), 10.000 SEK:
Natalia Barrientos, Stockholm University, for her work on “Southern Ocean paleoceanographic changes at the
Eocene-Oligocene climate transition: a meridional deep-sea transect of the Kerguelen Plateau”
In close competition with Natalia, Isabella Lindstrøm Larsen (University of Gothenburg) and Caroline
Bringensparr (Stockholm University) are both second-prize winners and will receive honorable mentions for
their work.
Candidate category (15 credits), 5.000 SEK:
Per-Arvid Berglund, Stockholm University, for his work on “Razorbill (Alca torda) breeding success decreases
with laying date – potential for complementing sprat (Sprattus sprattus) stock assessments and ecosystem
management in the Baltic Sea?”
About the Dyrssen Award
The Swedish Society for Marine Sciences (SHF) manages and appoints an annual winner of the Dyrssen Prize.
The prize is SEK 10 000 and is presented to the author of the best M.Sc. Thesis in the marine field. The award
was initiated by the SHF in honor of David Dyrssen (1922 - 2011), emeritus professor of analytical chemistry at
the University of Gothenburg. As one of the founding members of the Swedish Society for Marine Sciences, he
spent his career being an active proponent for the promotion of trans-disciplinary research for the marine
sciences.
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SVENSKA HAVSFORSKNINGSFÖRENINGEN
THE SWEDISH SOCIETY FOR MARINE SCIENCES
Oral presentations
Keynote speaker Jeffrey A. Hutchings
Ecological and evolutionary consequences of over-exploitation in marine fishes
Historically unprecedented depletions of marine fishes in the 1980s and 1990s stimulated considerable
research on the consequences of over-exploitation for population recovery. Some of this work addressed longstanding questions of fish population dynamics: (i) Does per capita population growth rate (r) always increase
as abundance declines? (ii) Do teleost fishes possess greater intrinsic recovery abilities (as reflected by rmax)
than other vertebrates? (iii) Does magnitude of population reduction influence the probability of recovery? (iv)
If fish evolve in response to fishing, changing average fitness and thus rmax, are the population-dynamic
consequences likely to be negative, positive, or neutral? Challenging some long-standing perceptions and
beliefs, recent meta-analyses and empirically based model simulations on marine teleost fishes support
theoretically based postulates that: (i) rmax does not differ from that of terrestrial mammals; (ii) high
fecundity has no influence on recovery potential; (iii) Allee effects can be manifest in some depleted
populations; and (iv) the effects of fisheries-induced evolution on recovery are unlikely to be similar across
species. An emerging imperative is the need to more fully embrace and comprehensively examine the links
that exist between fitness and per capita population growth, given that what happens at the level of the
individual will have consequences for how populations respond to natural and anthropogenic environment
change.
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SVENSKA HAVSFORSKNINGSFÖRENINGEN
THE SWEDISH SOCIETY FOR MARINE SCIENCES
Pär Byström, Jens Olsson, Ulf Bergström
Reciprocal intraguild predation interactions in juvenile predators and prey: effects of temporal separation
on recruitment patterns
Intraguild predation interactions make fish communities prone to exhibit alternative stable community states
with either piscivore or prey fish dominance. In the Baltic Sea local declines of coastal keystone piscivores like
perch have been observed to coincide with high densities of sticklebacks. Mechanisms behind this shift
between piscivore and stickleback dominance were studied both experimentally and in the field. Results
showed that predation by sticklebacks has a strong negative effect on larval perch survival but that this effect
rapidly decreases with increasing larval size, due to both gape limitations and digestion constraints in
sticklebacks. If YOY perch escape predation from sticklebacks they may instead negatively affect stickleback
recruitment via predation. Large variations in spatial and temporal patterns of stickleback migration into perch
spawning sites were observed, potentially explanation observed dichotomous patterns of either high YOY
perch or stickleback densities in coastal bays later in season. Whether or not coastal piscivore populations will
decline in response to increasing densities of sticklebacks is suggested to be determined by the availability of
spatio/temporal refuges in the form of spawning sites into which sticklebacks do not migrate or arrive late in
season compared to the reproduction period of perch.
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SVENSKA HAVSFORSKNINGSFÖRENINGEN
THE SWEDISH SOCIETY FOR MARINE SCIENCES
Anders Forsman, Hanna Berggren, Mats Åström and Per Larsson
To what extent can existing research help forecast climate change impacts on biodiversity?
It is broadly accepted that continued global warming will pose a major threat on biodiversity in the 21 st
century. But how reliable are current forecasts regarding consequences of future climate change? We review
the methodological approaches in published studies of how life in marine and freshwater environments
responds to temperature shifts. We analyse the distribution of observational field surveys versus experiments
performed in the laboratory or under natural conditions in the wild, the type of response variables considered,
the number of species investigated, and study duration. The observed patterns indicate that, due to limitations
of study design, ecological and evolutionary responses to temperature change of individuals, populations,
species, and ecosystems were in many cases difficult to establish, and causal mechanism(s) often remained
ambiguous. We also discovered that the thermal challenge in experimental studies was much more severe
than estimates of past and prognostications of future ocean warming, and that temperature manipulations
tended to increase in magnitude in more recent studies. These findings point to the conclusion that the extent
to which existing research can increase our understanding of how higher temperatures associated with climate
change will affect life in aquatic environments is limited.
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SVENSKA HAVSFORSKNINGSFÖRENINGEN
THE SWEDISH SOCIETY FOR MARINE SCIENCES
Agneta Andersson, H.E. Markus Meier, Matyas Ripszam, Owen Rowe, Johan Wikner, Peter Haglund, Kari Eilola,
Catherine Legrand, Daniela Figueroa, Joanna Paczkowska, Elin Lindehoff, Mats Tysklind, Ragnar Elmgren
Ecosystem effects in the Baltic Sea at future climate change projections - implications for ecosystem
management
Future climate change is likely to have large effects on the Baltic Sea ecosystem. Simulations indicate that by
2100 the temperature will increase 2-4oC and the ice coverage decrease 50-80%. Precipitation may increase in
the north, causing up to 22% increased land runoff and thus higher concentrations of humic substances in the
coastal water. Salinity may decrease 2 units in large parts of the Baltic Sea. In the north, reduced ice-coverage
will induce an earlier onset of the spring bloom, while brownification will decrease phytoplankton production.
Bacterial production is predicted to be maintained and the ecosystem turn net-heterotrophic. The organisms
might to a higher degree be exposed to organic pollutants via sorption to humic substances. In the south
bottom-water anoxia may spread, causing sediments to release phosphorus, which may favor cyanobacterial
blooms. Future management of the Baltic Sea environment must consider the effects of climate change on
ecosystem dynamics and functions.
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SVENSKA HAVSFORSKNINGSFÖRENINGEN
THE SWEDISH SOCIETY FOR MARINE SCIENCES
Johnny Berglund, Carlos Paz Von Friesen
Underwater maps for marine spatial planning and management
There is an increasing need for comprehensive information on underwater habitats in shallow coastal
areas. Maps of the underwater landscape are required for marine spatial planning and coastal zone
management, for handling of exploitation permits and for marine conservation. A new HELCOM underwater
biotope (HUB) classification system for the Baltic Sea was adopted in 2013. It shares with the EUNIS system a
hierarchical structure where the upper levels describe the physical habitat (e.g. depth zone and seabed
substratum) and the lower levels describe the biotope based on dominating vegetation and/or fauna. In two
cross-border cooperation projects in the Quark area, northern Baltic Sea, we have gathered a wide range of
environmental data and developed a common underwater map between Finland and Sweden. The map which
is compatible with the HELCOM Underwater Biotopes/Habitats Classification System covers an area of 2180
km2 and contains 18 different biotopes. The distribution of the biotopes was modelled by Random Forest, in
Sweden, and Maximum Likelihood, in Finland. We also show how the HUB maps can be used by managers and
decision makers by assessing how different activities may influence the biotopes.
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SVENSKA HAVSFORSKNINGSFÖRENINGEN
THE SWEDISH SOCIETY FOR MARINE SCIENCES
Johanna Bergkvist, Isabell Klawonn, Martin Whitehouse, Helle Ploug
Direct quantification of nutrient uptake in chain-forming diatoms during a spring-bloom in the Baltic Sea
SIMS (Secondary Ion Mass Spectrometry) is a technique by which it is possible to measure isotopic
composition of single cells of known identity in a mixed population. Here we present direct quantification of
carbon, nitrate, and ammonium fluxes in chain-forming diatoms during a spring bloom in the Baltic Sea.
Skeletonema marinoi and of Chaetoceros sp. contributed by 8% and 42%, respectively, of total nitrate uptake
within this mixed field population, which was dominated by Skeletonema marinoi with respect to cellular
abundance. Incubation of the seawater in roller tanks showed a high aggregation potential and high
ammonium production within diatom aggregates. The total nitrate assimilation by diatoms was 0.26 µg N L -1 h1
. The net ammonium release by diatom aggregates ranged between 0.070 and 0.21 µg N L -1 h-1. Hence,
ammonium production during remineralization was probably an additional N-source to cover cellular Ndemand when nitrate was depleted. We conclude that diffusion limitation of nitrate uptake by chain-forming
diatoms is likely of little significance during spring blooms, and that chain-formation probably is more
significant as an adaptation to reduce grazing pressure.
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SVENSKA HAVSFORSKNINGSFÖRENINGEN
THE SWEDISH SOCIETY FOR MARINE SCIENCES
Siv Huseby, Agneta Andersson, Helena Höglander, Chatarina Karlsson
The key role of phosphorus and nitrogen for cyanobacterial composition in the northern Baltic Sea
Cyanobacteria are a frequently occurring and harmful algal group in the Baltic Sea. The composition of the
cyanobacterial communities in different areas of the Baltic Sea and the environmental factors governing the
structure of cyanobacterial community are however poorly understood. We studied the occurrence and
temporal trends of the orders Nostocales, Chroococcales, and Oscillatoriales, at locations in the northern Baltic
Sea, June – September, 1998-2012. The average contribution of cyanobacteria to the total phytoplankton
biomass increased from 1 to 35% in the north-south gradient. In the offshore Bothnian Bay, Chroococcales and
Oscillatoriales dominated the cyanobacterial community. In the Bothnian Sea and the northern Baltic Proper,
Nostocales constituted >80% of the cyanobacterial biomass. Nostocales correlated positively with high
phosphorus and high salinity, while Oscillatoriales is promoted by high nitrogen concentrations and low salinity
and Chroococcales is coupled to low salinity and low phosphorus. Phosphorus seems to be a positive
regulating factor of cyanobacteria in northern the Baltic Sea. Furthermore, this study indicates that
Chroococcales might be used as indicator for increased nutrient levels in unproductive waters, while
Nostocales could be used as water quality indicator in more productive waters with high phosphorus
concentrations and low inorganic nitrogen concentrations.
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SVENSKA HAVSFORSKNINGSFÖRENINGEN
THE SWEDISH SOCIETY FOR MARINE SCIENCES
Malin Olofsson, Jenny Egardt, Arvind Singh, Helle Ploug
Effects of phosphorous limitation on nitrogen and carbon fluxes in two strains of the cyanobacterium
Nodularia spumigena
In the Baltic Sea, the filamentous N2-fixing cyanobacteria, Nodularia spumigena, is important for the nitrogen
cycling during summer blooms when inorganic phosphate often limits growth by cyanobacteria. By using stable
isotope tracers we investigated, cellular growth, carbon- and N2-fixation rates under P-limitation and P-replete
conditions in two strains (KAC12 and KAC64) of N. spumigena, during a 21 days experiment. KAC12 showed a
steep increase of carbon- and N2-fixation already during the first week of the experiment, while KAC64 showed
a slower but steady increase of fixation rates until the end of the experiment, as the inorganic nitrogen in the
surrounding water was depleted. Phosphate limitation decreased average carbon-fixation rate significantly in
both strains, but had no effect on N 2-fixation. The average N2-fixation by KAC12 was significantly higher than
that by KAC64, when pooling the treatments. However, the C:N fixation ratio and the cellular C:N ratio were
not affected by limitation of phosphate, and stayed fairly close to Redfield ratio (C:N = 6.6) for both strains
towards the end of the experiment. The heterocyst frequency decreased significantly during 21 days at
phosphate-limitation. The heterocyst frequency was not correlated to N 2-fixation rate.
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SVENSKA HAVSFORSKNINGSFÖRENINGEN
THE SWEDISH SOCIETY FOR MARINE SCIENCES
Agnes ML Karlson, Hedvig Hogfors, Brita Sundelin, Ulf Larsson, Susanna Hajdu, Jan Albertsson, Andrius
Garbaras, Elena Gorokhova
High reproductive success and larger trophic niche in amphipods exposed to cyanobacterial blooms
Cyanobacterial blooms are often considered a visible sign of eutrophication with potential negative effects on
biota. Evidence is accumulating, however, that filamentous toxin-producing cyanobacteria are eaten by many
grazers, suspension-feeders and deposit-feeders, often with beneficial effects on growth and reproduction.
Using long-term monitoring data and archival samples from different areas of the Baltic Sea, we tested a
hypothesis that cyanobacterial blooms may improve trophic state and reproductive success in the depositfeeding amphipod Monoporeia affinis. We found that magnitude of the cyanobacterial bloom has positive
effect on the trophic niche size in the amphipod populations. Moreover, there were positive linkages between
the niche size and amphipod C:N ratio, indicating improved nutrition state, and further, between niche size
and embryo viability in M. affinis populations. These findings suggest that cyanobacteria may support feeding
and production in this ecologically important benthic species and call for a quantitative assessment of
cyanobacteria contribution to benthic production at various ecological settings in the Baltic Sea.
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SVENSKA HAVSFORSKNINGSFÖRENINGEN
THE SWEDISH SOCIETY FOR MARINE SCIENCES
Keynote speaker Katrine Borgå
Diverging findings on siloxane biomagnification in aquatic food webs
Marine and freshwater ecosystems are recipients of legacy and emerging environmental contaminants
originating from applications including agriculture, industry and from our own personal use. Siloxanes, such as
cyclic volatile methyl siloxanes (cVMS) are current-used high production volume chemicals identified with
physical chemical properties of concern. cVMS have been quantified in the Arctic environment, as well as in
temperate marine and freshwater food webs. However, our present understanding of the environmental
behavior of cVMS, in particular the food web accumulation is still poor and contradictory. Whereas several
food web magnification studies show trophic dilution with food web biomagnification factors below 1.0,
predator-prey specific biomagnification studies and food web studies from the large inland lakes in Norway
show increasing concentrations with trophic level. I will discuss these contradictory results – how this affects
the evaluation of the chemicals in a regulatory sense, and how we can improve the understanding of
bioaccumulation of emerging contaminants in aquatic food webs.
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SVENSKA HAVSFORSKNINGSFÖRENINGEN
THE SWEDISH SOCIETY FOR MARINE SCIENCES
Anteneh Assefa, Anna Sobek , Karin Wiberg , Mats Tysklind
What can we learn from dynamics of polychlorinated dibenzo-p-dioxins and dibenzofurans in Baltic Sea
sediments?
Polychlorinated dibenzo-p-dioxins (PCDDS) and dibenzofurans (PCDFs) (commonly known as dioxins) are
groups of persistent organic pollutants that are unintentionally produced in a variety of industrial processes.
Dioxins are known for their persistence, toxicity and worldwide spread. High levels of PCDD/Fs are observed in
fatty fish and other seafood from the Baltic Sea, occasionally exceeding the maximum limit for food and feed
assigned by the European Commission. Therefore, dioxins are of high concern in the Baltic Sea region. Based
on a study on fifteen sediment cores collected from the Baltic Sea, which covered the period 1920s-2000s, the
overall peak year in offshore areas was 1994 ± 5 years, and after peak the half-life in sediments was 29 ± 11
years (1). For industrial/urban impacted coastal sites, the temporal trend was more variable with peak years
occurring 1−2 decades earlier compared to offshore areas. The substantial reductions from peak levels (38 ±
11% and 81 ± 12% in offshore and coastal areas, respectively) reflect domestic and international actions taken
for reduction of the release of dioxins to the environment. Using a multivariate data analysis technique called
positive matrix factorization, six historically important dioxin sources have been identified (2). These are (i)
atmospheric background deposition (ABD), (ii) pentachlorophenol, (iii) tetra-chlorophenol, (iv) high
temperature processes (Thermal), (v) hexachlorinated dibenzo-p-dioxins related sources, and (vi) chlorinerelated sources. Overall, the combined impact of atmospheric-related emissions (ABD and Thermal) dominated
the open sea system throughout the study period and showed a decreasing south to north trend (always >80%
in the south and >50% in the north). The possible link between these sources and the contamination of Baltic
biota will be addressed in an upcoming study.
22
SVENSKA HAVSFORSKNINGSFÖRENINGEN
THE SWEDISH SOCIETY FOR MARINE SCIENCES
Terry F. Bidleman, Kathleen Agosta, Agneta Andersson, Peter Haglund, Olle Nygren, Matyas Ripszam, Mats
Tysklind
Air-Water Exchange of Natural Brominated Compounds in the Northern Baltic Sea: Current Status and
Possible Influences of Climate Change
Bromophenols (BPs) are produced by macroalgae and cyanobacteria in the Baltic Sea and marine
environments worldwide. BPs are partly or fully dissociated at seawater pH, but undergo O-methylation to
form bromoanisoles (BAs) which are more volatile and exchanged between water and air (1). Other
bromophenolic compounds in Baltic biota include hydroxylated and methoxylated bromodiphenyl ethers (OHBDEs, MeO-BDEs) and polybrominated dibenzo-p-dioxins (PBDDs) (2,3). Although natural, these compounds
have toxic properties (4,5) which may be of concern when viewed as part of the mixture with anthropogenic
substances (2). Here we summarize investigations of sea-air-exchange of BAs in the Baltic (1) and report the
first measurements of MeO-BDEs in Baltic water and air. We also discuss factors influencing the production of
natural brominated compounds that are likely to be affected by climate change. Water from the Bothnian BaySea and one expedition in the Baltic Proper was filtered (GF/F) and 5-40 L was passed through columns of XAD2 or ENV+ resin to extract BAs and MeO-BDEs. Air samples of 50-150 m3 for BAs and 1300-2200 m3 for MeOBDEs were collected at the island Holmön (63.79N, 20.84E) on glass fibre filter-polyurethane foam (PUF) traps.
Sample extracts were cleaned with Florisil and BAs were determined by capillary gas chromatography-electron
impact mass spectrometry (GC-ECNI-MS) (1). Additional cleanup with 18 M sulphuric acid was done on
combined extracts before MeO-BDEs were determined by GC-ECNI-MS. Bromine ions 79 and 81 were
monitored. The most abundant BAs in water were 2,4,6-TriBA and 2,4-DiBA at concentrations ranging from 64637 and 20-205 pg L-1, while these BAs in air varied from 5.5-116 and 2.1-37 pg m-3. 2,6-DiBA was also
identified in water and air at lower concentrations. 6-MeO-BDE47 and other MeO-BDEs were found at pg L-1
levels in water and fg m-3 levels in air. BAs in surface water were oversaturated relative to water/air
equilibrium, resulting in net volatilisation of up to 1300 kg of total BAs from Bothnian Bay (38 000 km 2)
between May and September (1). Physical impacts of climate change on the Baltic Sea include increasing water
temperature and fresh water input, and reduction in ice cover and salinity (6). A shift is anticipated from a
phytoplankton to microbial-based food web in the northern Baltic coupled to increasing river runoff (6), and
phytoplankton production in the south is expected to increase under some scenarios of rising temperature and
nutrient loadings (7). Greater discharge of fresh water and increase in brown-colored DOM in the northern
Baltic may reduce bromide availability, phytoplankton production (6) and consequently BPs/BAs. On the other
hand, volatile halocarbons are produced by reaction of hypobromite and seawater DOM, under
bromoperoxidase catalysis (8). Is this also the case for bromophenolics, and if so, how will their production
respond to opposing conditions of lower bromide and higher DOM? Better understanding of the
biogeochemistry of halogenated natural products is required.
23
SVENSKA HAVSFORSKNINGSFÖRENINGEN
THE SWEDISH SOCIETY FOR MARINE SCIENCES
Daniela Figueroa, Owen Rowe, Joanna Paczkowska, Agneta Andersson
Allochthonous organic matter - a major driver of bacterial production in sub-arctic estuaries in the Baltic Sea
In aquatic ecosystems the bacterial production frequently is positively correlated to primary production. This
relation does however not hold true in systems highly influenced by terrestrial organic matter, like many
unproductive humic lakes, where bacterial production is subsidized by external carbon and primary production
hampered by poor light climate. We hypothesized that a similar condition would prevail in unproductive subarctic estuaries receiving high amounts of riverine material from land. Bacterial production and potentially
explanatory factors were measured in the Råneå estuary in the northern Baltic Sea, at 19 stations during 4
months: May, June, July and August. Maximum bacterial production rates were observed in spring,
concomitant to the spring river flush of allochthonous organic matter, and lowest rates were observed during
summer when primary production peaked. On average, the bacterial production was 3-fold higher than
primary production. The bioavailability of the dissolved organic carbon (DOC) was highest in spring close to the
river mouth (~70%) and lowest during the summer (0-5%). The DOC was estimated to contribute to ~50% of
the bacterial growth. Partial least square analysis showed that 68 % of the variation of bacterial production
could be explained by allochthonuos organic carbon, which include humic substances, dissolved organic
carbon (DOC) and chromophoric dissolved organic matter (CDOM). This study indicates that climate-induced
increases in land run-off will promote bacterial production and reduce primary production in subarctic
estuaries in the northern Baltic Sea.
24
SVENSKA HAVSFORSKNINGSFÖRENINGEN
THE SWEDISH SOCIETY FOR MARINE SCIENCES
Markus V. Lindh, Daniela Figueroa, Johanna Sjöstedt, Daniel Lundin, Agneta Andersson, Catherine Legrand,
Jarone Pinhassi
Baltic Sea transplant experiments uncover distinct water mass-dependent responses in bacterioplankton
community composition and activities to changes in salinity and dissolved organic matter
Climate change-induced increase in precipitation is predicted to intensify river runoff, causing intensified
loading of terrigenous organic matter and lower salinity in coastal waters. Although bacterioplankton are the
principal degraders of dissolved organic matter, it remains largely unknown how particular bacterial
populations and their ecosystem functioning will be affected by such environmental disturbance. We
determined metabolic and compositional responses of bacteria in microcosm transplants and re-transplants
between humic acid-impacted Bothnian Sea water (3.6 PSU) and Baltic Proper water (6.6 PSU). Baltic Proper
bacteria transferred to Bothnian Sea water had significantly elevated bacterial production and betaglucosidase activity compared to other microcosms, indicating that terrigenous organic matter and lower
salinity affected ecosystem process rates. Concomitantly, changes in community composition occurred
between microcosms, primarily among Roseobacter clade vs. Pseudomonadaceae and Flavobacteriaceae
populations. Baltic Proper bacteria transferred to Bothnian Sea water with continued incubation in Bothnian
Sea water had elevated bacterial production and beta-glucosidase activity. Also re-transplanted Bothnian Sea
bacteria showed elevated bacterial production and high leucine-aminopeptidase activity. In the former
microcosms Burkholderiaceae OTUs was prevalent and in the latter microcosms Alteromonadaceae OTUs
increased. Further, significant correlations between community composition and ecosystem process rates
suggested a coupling between phylogeny, bacterioplankton response to environmental disturbances and
ecosystem functioning. The water mass dependent response of communities show that increased river runoff
may have an essential "priming" effect on bacterial community structure that could translate into longer-term
changes in ecosystem functioning and bacterial carbon cycling properties toward a net heterotrophic Baltic
Sea ecosystem.
25
SVENSKA HAVSFORSKNINGSFÖRENINGEN
THE SWEDISH SOCIETY FOR MARINE SCIENCES
Joanna Paczkowska, Owen Rowe, Caterine Legrand, Bengt Karlsson, Agneta Andersson
Humic substance and phosphorus shape the size – structure and pigment content of Baltic Sea
phytoplankton
The temporal and spatial variation of the size-structure and pigment content of the phytoplankton community
were studied along a south – north gradient in the Baltic Sea. Samples were collected at fourteen stations,
from Kattegat to the Bothnian Bay during a summer and a winter–spring cruise 2011-2012, respectively. We
hypothesized that the phytoplankton size-structure and pigment content were shaped by the nutrient
availability and concentrations of humic substances in the gradient. In summer the proportion of autotrophs
decreased gradually from south to north, while the opposite trend was observed for mixotrophs. Picoplankton
was the dominant size class in the Baltic Proper and Bothnian Sea (~70%), while their importance decreased
gradually towards the north. Mixotrophic nanoplankton instead dominated in the Bothnian Bay, where the
concentrations of humic substances were high. During the nutrient rich winter–spring period, microplankton (>
20 µm) dominated at all stations, constituting on average 60% of the biomass. Dinophyceae was the dominant
phytoplankton group. The chlorophyll content of the phytoplankton (chlorophyll a: carbon biomass ratio)
increased from north to south, indicating adaption to darker humic rich water in the north. The
photoprotective pigments were 10-fold higher in the summer than in the winter. During the summer, the
photoprotective index was higher in the southern Baltic Sea than in the north, indicating adaption to high lightclimate in the south. The results support that both nutrient concentrations and humic substances are
important for the size-structure and composition of the phytoplankton community.
26
SVENSKA HAVSFORSKNINGSFÖRENINGEN
THE SWEDISH SOCIETY FOR MARINE SCIENCES
Keynote speaker Asbjørn Vøllestad
Climate effects on fish migration: eel and salmon as examples
Most fishes migrate among habitats during some particular stages of their life cycle. Migrations may be shortor long distance, and the environmental cues triggering the migrations differ. Organisms at different levels in
the food web may respond different phenotypically to climatic cues. This may lead to population level as well
as ecosystem level effects (mismatch). In this talk I will discuss how various environmental factors, occurring at
different spatial scales, may impact on fish migrations through plastic responses and/or evolutionary changes. I
will use European eel and Atlantic salmon as examples, and discuss how climate change may impact on
migration and population dynamics.
27
SVENSKA HAVSFORSKNINGSFÖRENINGEN
THE SWEDISH SOCIETY FOR MARINE SCIENCES
Petter Tibblin, Anders Forsman, Per Koch-Schmidt, Peter Johannessen, Jonas Nilsson, Per Larsson
Sympatric subpopulations of pike in the Baltic Sea – same but different?
Evolutionary theory predicts that different selective regimes may contribute to divergent evolution of body
size and growth rate among populations, but most previous studies have focused on allopatric populations.
Here, we studied five sympatric subpopulations of anadromous Northern pike (Esox lucius) in the Baltic Sea
subjected to different environments only for a few weeks during reproduction and the larval period due to
natal homing. We report differences in adult body size among subpopulations that were due in part to
variation in growth rate. Body size of emigrating juveniles also differed among subpopulations and differences
remained when individuals were reared in a common environment. This indicates that the variation among
subpopulations was genetically based and represented evolutionary modifications, possibly in response to
differences in subpopulation density and intensity of intra-specific interactions during early life. Adult and
juvenile size was negatively correlated across subpopulations, and reconstruction of growth trajectories of
adult fishes suggest that body size differences developed gradually and became accentuated throughout the
first years of life. These results represent rare evidence that coexisting subpopulations can evolve differences
in key life history traits despite being subjected to different environments and selective regimes only during a
very short fraction of their life.
28
SVENSKA HAVSFORSKNINGSFÖRENINGEN
THE SWEDISH SOCIETY FOR MARINE SCIENCES
Per Larsson, Petter Tibblin
Data storage tags reveal a year’s life of Baltic Sea pike (Esox lucius)
Pike were marked with electronic tags and Data Storage Tags (DST) during 2012 in a small spawning stream
entering the South West Baltic Sea. The fish (n=24) were caught by a fyke net after spawning (downstream
migration) and the tags were put surgically in the bucal cavity. The pikes were sexed and the length was
measures (>60 cm, all females) and the fishes were then released in the stream. The DST registered pressure
(depth) every minute and temperature every 10 minutes. During spawning season the following year a fykenet was placed in the stream to catch fish on their upstream spawning migration. Fish that contained PIT and
DST were sacrificed (n=9, 37% of the tagged fish) and the tags removed for analysis (DST). After the spawning
season in May and June, pike showed a daily positive temperature pattern compared to surface temperature
at a coastal station (VIVA). At night, fish showed high activity pattern (foraging) moving from surface to deeper
habitats. The excursions were followed by day resting in surface water resulting in increasing body
temperature. For some fish the pattern were regular and diurnal. In late summer the temperature pattern in
pike changed and became negative. Activity (foraging) changed and included both surface and subsurface
patterns. The patterns showed consistent individual behaviour. Under ice in winter (at 2-3 oC), fish had
intense, short (<10 h) activity periods followed by long periods (<14 days) of subsurface rest. In April, the start
of migration in the sea back to the spawning brook could be determined as a resting period followed by a
continuous activity pattern until the fish were caught in the spawning area.
29
SVENSKA HAVSFORSKNINGSFÖRENINGEN
THE SWEDISH SOCIETY FOR MARINE SCIENCES
Stina Israelsson, Hanna Berggren, Markus. V. Lindh, Daniel Lundin, Anna Schager, Catherine Legrand, Anders
Forsman, Jarone Pinhassi
Bacterial communities of various fish species are specific and different from their seawater environment
The importance and specificity of microbiota in healthy fish are increasingly acknowledged. However, little is
known about how microbiomes of various fish species relate to each other, within different body regions, and
to the ambient seawater bacterial community composition. Bacterial composition in hindgut and epidermal
mucus was determined using 16S rRNA gene pyrosequencing in cod (n=6), herring (n=10), sprat (n=5) and
sculpin (n=9) from the Baltic Proper and compared to bacterial community composition of seawater as
determined over three years. In gut, microbial biodiversity was significantly lower compared to mucus and
seawater, suggesting a harsher environment in gut. Bacterial composition in mucus was significantly different
from that of seawater and fish species dependent. 43% of all OTUs (using 97% clustering level) found in fish
were unique to fish and not found in seawater. Shared OTUs were also associated to either fish or seawater
according to differences in relative abundance. Several OTUs showed fish species and body site specificity,
indicating distinct core microbiomes of different fish. For example, two Desulfobulbus-assigned OTUs were
sprat mucus-specific and absent form seawater. These findings suggest that interactions between fish and
bacteria are highly specific and more complex than previously recognized.
30
SVENSKA HAVSFORSKNINGSFÖRENINGEN
THE SWEDISH SOCIETY FOR MARINE SCIENCES
Elin Almroth- Rosell
Modelling the oxygen dependent benthic phosphate fluxes in the Baltic Sea - A new approach
The new approach to model the oxygen dependent phosphate release by implementing formulations of the
oxygen penetration depths (OPD) and mineral bound inorganic phosphorus pools to the Swedish Coastal and
Ocean Biogeochemical model (SCOBI) will be presented. The phosphorus dynamics and the oxygen
concentrations in the Baltic proper sediment was studied during the period 1980-2008 using SCOBI coupled to
the 3D-Rossby Centre Ocean model. The model data have been compared to observations from monitoring
stations and experiments. The seasonal variation on the OPD is largest in the coastal zones, where also the
impact from oxygen consumption on the determination of the OPD is found to be large. In the deep water the
low oxygen concentrations mainly determine the OPD. Highest modelled release rate of phosphate from the
sediment is about 59×103 t P year-1 and is found on anoxic sediment at depths between 60-150 m. The
deposition of organic and inorganic phosphorus on sediments with oxic bottom water is larger than the release
of phosphorus, about 43×103 t P year 1. For anoxic bottoms the release of total phosphorus during the
investigated period is larger than the deposition, about 19×103 t P year 1. In total the net Baltic proper
sediment sink is about 23.7×103 t P year 1. The estimated phosphorus sink efficiency of the entire Baltic Sea is
on average about 83% during the period.
31
SVENSKA HAVSFORSKNINGSFÖRENINGEN
THE SWEDISH SOCIETY FOR MARINE SCIENCES
Erik Gustafsson, Teresia Wällstedt, Christoph Humborg, Carl-Magnus Mörth, Bo G. Gustafsson
External alkalinity loads vs. internal generation - the influence of none-riverine alkalinity sources in the
Baltic Sea
Simulations in BALTSEM, a coupled physical-biogeochemical Baltic Sea model, clearly show that river loads of
alkalinity together with North Sea water inflows are not sufficient to reproduce observed alkalinity
concentrations in the system, demonstrating the large influence from internal sources. Budget calculations
indicate that the required internal alkalinity generation must be similar to river loads in magnitude. The
majority of this internal source is most likely related to unresolved sediment processes such as burial of
reduced sulfur and/or silicate weathering. Studies on sediment processes on a global scale together with data
from sediment cores in the Baltic Sea support this hypothesis. Internal alkalinity generation in coastal oceans
has the potential to increase ocean buffer capacity and thus enhance the uptake of atmospheric CO 2. This
study illustrates how the internal alkalinity generation in the Baltic Sea results in a significant carbon sink,
mitigating CO2 evasion from the system.
32
SVENSKA HAVSFORSKNINGSFÖRENINGEN
THE SWEDISH SOCIETY FOR MARINE SCIENCES
Ida-Maja Hassellöv, Erik Ytreberg, Kent Salo
Seawater chemistry governs performance and influence potential negative environmental effects of
seawater scrubbing
Shipping is today the largest individual polluting industry with respect to emissions of acidifying sulphur and
nitrogen oxides. To reduce ship emissions of acidifying gases to the atmosphere, stricter sulphur regulations
will apply from 2015. To cope with the new regulations ships will either have to switch to expensive low
sulphur fuel, or use an alternate abatement method such as seawater scrubbing. Seawater scrubbing utilizes
the natural high solubility of primarily sulphur oxides in seawater and the exhausts are scrubbed in a fine spray
of seawater. The efficiency of the scrubbing process is governed by seawater chemistry, implying that the
natural decrease in alkalinity from the Skagerrak to the Baltic Sea will lower the efficiency. Further, the
resulting large volumes of acidified seawater (pH 3) also contain other washed out contaminants such as
copper and zink. Chalmers’ model scrubber setup, coupled to a marine engine lab, allows for scrubbing of
different types of seawater with simultaneous on-line gas analysis of the scrubbed exhausts. Here we present
preliminary results of the efficiency of the scrubbing process using seawater from the Kattegat and the Baltic
Proper. Initial assessment of ecotoxicological effects of the scrubber water will also be discussed. The overall
aim is to use the data to deliver a scientifically based risk assessment on large scale use of seawater scrubbing
in the seas surrounding Sweden.
33
SVENSKA HAVSFORSKNINGSFÖRENINGEN
THE SWEDISH SOCIETY FOR MARINE SCIENCES
Keynote speaker Anja Engel
Pelagic ecosystems in a high CO2 world: Can we predict what the future may bring?
Pelagic ecosystems cover 70% of the Earth’s surface and play a major role in global primary productivity,
oceanic CO2 uptake, climate regulation, as well as for fisheries, and human recreation and health. Directly
interacting with the atmosphere, the ocean is the largest sink for anthropogenic CO 2. In consequence, surface
seawater pH is declining at a rate unprecedented during the past 300 million years, a detection that we refer
to as ocean acidification. Early studies on ocean acidification revealed strong and direct effects of changes in
pH and pCO2 on the physiology of individual plankton species, and implied severe consequences for pelagic
ecosystem services. Stimulated by the potential threads of a high CO 2 world, national and international
research programs (e.g. EPOCA, BIOACID, UKOA, OAP) were launched to better understand the impacts of
ocean acidification on marine organisms, ecosystems and biogeochemistry, and the potential feedbacks to
climate. This talk will give a progress report of how ocean acidification and carbonation may change pelagic life
in the surface ocean. Recent approaches to simulate a high CO2 environment will be shown, and mechanisms
of potential feedbacks to climate will be discussed.
34
SVENSKA HAVSFORSKNINGSFÖRENINGEN
THE SWEDISH SOCIETY FOR MARINE SCIENCES
Carina Bunse, Lovisa Svensson, Daniel Lundin, Federico Baltar, Neelam Akram, Mark Dopson, Karin Holmfeldt,
Jeremy Forsberg, Christofer Karlsson, Joakim Palovaara, Maria Vila-Costa, Eva Calvo, Carles Pelejero, Cèlia
Marrasé, José M González, Josep M Gasol, Jarone Pinhassi
Ocean acidification causes a community wide bacterial pH stress response
Anthropogenic CO2 emissions threaten the structure and function of marine food-webs by lowering oceanic
pH. Despite their importance for biogeochemical cycling, physiological responses of bacterioplankton to ocean
acidification remain largely unknown. We conducted a mesocosm experiment with Mediterranean seawater
treated with CO2 or/and nutrient enrichment and analyzed microbial responses. While community
composition remained stable, bacterial community-wide expression analysis revealed that genes involved in
respiration, photosynthesis and proton transport, e.g. proteorhodopsin, were significantly enriched in acidified
mesocosms. In total, 40% of the transcripts enriched upon acidification were assigned to mechanisms
maintaining pH homeostasis. This suggests that acidification-induced proton stress is counteracted by
energetically costly proton extrusion mechanisms, purportedly leaving less energy for other metabolic
processes. Taxonomic assignment of transcripts showed distinct gene expression patterns among dominant
bacterial groups, but also viruses, caused by acidification. These previously unrecognized responses were not
visible under phytoplankton bloom conditions that strongly stimulated bacterial growth. Hence, effects of
ocean acidification could have particularly pronounced consequences for the energetics and ecosystem
functioning of bacterioplankton in oligotrophic conditions.
35
SVENSKA HAVSFORSKNINGSFÖRENINGEN
THE SWEDISH SOCIETY FOR MARINE SCIENCES
Juan José Rodríguez Serrano, Jenny Ask, Agneta Andersson
Effects of increased pCO2 and terrestrial organic matter on phytoplankton and bacterioplankton activity and
community structure
Nowadays, the entire scientific community is aware of the exponential increase in the global atmospheric pCO2
levels. One of the most important effects of such an increase in pCO2 is the acidification of the oceanic water
masses, causing increased dissolution of calcium carbonate, which is part of many biological structures. Recent
research has also studied the effect of higher CO 2 concentration in seawater on the basic levels of the foodweb in a more ecological context, showing an increase in phytoplankton and bacterial activity. Furthermore,
the increased input of terrestrial organic matter to aquatic ecosystems, due to higher terrestrial primary
production and a concurrent increase in river discharge, is causing a “brownification” of inland and coastal
waters. In the northern Baltic Sea both elevated atmospheric levels of CO2 and input of terrestrial organic
matter are important environmental factors for coastal aquatic food-webs. In this study we tested the single
and combined effects of increasing CO2 and terrestrial organic matter on the phytoplankton and
bacterioplankton communities present in seawater from a coastal area in the Gulf of Bothnia. Preliminary
results show a trend of increasing bacterial and phytoplankton activity throughout the experiment, with a
depletion of phytoplankton activity in the last days.
36
SVENSKA HAVSFORSKNINGSFÖRENINGEN
THE SWEDISH SOCIETY FOR MARINE SCIENCES
Per-Arvid Berglund
Razorbill (Alca torda) breeding success decreases with laying date – potential for complementing sprat
(Sprattus sprattus) stock assessments and ecosystem management in the Baltic Sea?
Marine ecosystems face drastic declines in fish stocks, commercial fishing being the prominent reason for the
rapid change. Depletion of one species often affects other parts of the ecosystem. Stock-size data informing
Baltic Sea fishing regulation negotiations are today based on numbers from independent scientific acoustic
surveys as well as numbers reported from commercial fisheries. Additional effective ways of acquiring accurate
data to complement existing survey methods could enhance data resolution, and extend our knowledge of
ecosystem functions. Using seabirds as indicators of marine ecosystem changes are practiced globally, as
seabird life history traits often make them react to specific changes such as fluctuating fish stock compositions.
In the Baltic Sea, the clupeid sprat (Sprattus spratus) is common and economically important, and at the island
Stora Karlsö the alcid, the common murre (Uria aalge) (also known as common guillemot), has been monitored
for many years with breeding-related responses linked to changes in sprat parameters. Studying response
diversity in species that have similar but not identical life history traits can enhance knowledge of responses to
changing ecosystems. The alcid, the razorbill (Alca torda), shares breeding sites and preference of sprat with
the murres at Stora Karlsö, however their exact time of breeding and their foraging behavior differs to some
extent. In this study of Stora Karlsö razorbills, no significant change in breeding success could be linked to
changing sprat stock parameters (quality and quantity) over five years. This could be due to few years of
razorbill breeding data available. However, as in the murres, razorbill breeding success decreased significantly
as the breeding season progressed: the later razorbill pairs started breeding, the smaller were their chances of
succeeding to raise young. Future studies are needed to conclude if this trend depends on annual variations in
locally available sprat and its energy content, interspecific competition with the murres, climate effects, or
other trade-off related factors. Learning more about timing of breeding and detectable responses to changing
prey parameters can enhance the resolution of data used from indicator species and increase knowledge
about interspecies interactions. Eventually this can show in what way natural mechanisms in the ecosystem
can be used to survey and manage marine resources, while increasing the quality of fish stock models.
37
SVENSKA HAVSFORSKNINGSFÖRENINGEN
THE SWEDISH SOCIETY FOR MARINE SCIENCES
Natalia Barrientos
Southern Ocean paleoceanographic changes at the Eocene-Oligocene climate transition: a meridional deepsea transect of the Kerguelen Plateau
This thesis investigates paleoceanographic changes from the late Eocene - early Oligocene climate transition
(EOT) on the Kerguelen Plateau (KP) submerged igneous province in the Southern Indian Ocean. This transition
is characterized by the onset of permanent ice-sheets over Antarctica. However, forces and feedbacks of this
glaciation on Southern Ocean circulation remains focus of debate. At present, the Antarctic Polar Front is
located at the northern part of the KP where the cold northward- owing Antarctic waters converge and sink
below warmer waters of the sub-Antarctic. This results in a narrow circumpolar oceanic belt extremely high in
primary productivity, that shows a shift from biocalcareous sedimentary deposits to the north and biosiliceous
to the south. In this thesis, the position of the Polar Front across the KP is studied. This is to test the hypothesis
that the Polar Front shifted northward across the KP at the EOT, because of a change in the latitudinal thermal
gradient between equator and pole driven by the impact of Antarctica glaciation. To achieve that, I have
produced new paleoceanographic data for three ODP sites drilled during Leg 183 (Sites 1138, 1139 and 1140).
The sites cover the northern and central latitudinal transect of the KP. The lithological characteristics at these
sites are analyzed and the rst high-medium resolution benthic foraminifera stable isotope records are
generated from central and northern KP. The obtained isotope records are correlated with available records
from southern KP (Sites 748, 744 and 738) from the late Eocene and early Oligocene to produce a
paleoceanographic N-S transect spanning 20 of latitude. The results of this synthesis show that regional
northern KP intermediate waters at the three new sites have similar oxygen isotope values compared to
southern KP sites in the latest Eocene. This suggests the location of the Polar Front south of the KP with warm
Indian Ocean conditions extended over KP. Conversely, there are differences in the oxygen isotope values
between the three new sites and southern KP at the earliest Oligocene. This is coeval with a biosilica facies
change found at southern KP during EOT. Finally, the results are incorporated into a larger framework where
the KP isotope records are compared with records from the Atlantic sector of the Southern Ocean and globally.
Latitudinal variations along the Southern Ocean were observed suggesting relative colder
intermediate/bottom waters at sites close to the Antarctic continent until reaching central KP, indicating that
the Antarctic Polar Front, if present as we know it today, was located between central and southern KP at the
EOT.
38
SVENSKA HAVSFORSKNINGSFÖRENINGEN
THE SWEDISH SOCIETY FOR MARINE SCIENCES
Poster presentations
Katarina Abrahamsson, Anders Backman, Jan Bergholtz, Johan Pettersson, Ullika Lundgren
R/V Skagerak – University of Gothenburg´s New Research Vessel
In June 2013, the vice chancellor at the University of Gothenburg decided to start the process to build a
replacement for the 36 year old research vessel Skagerak, which is still in active duty. The ship will be delivered
autumn 2015. The ship will be a platform for multidisciplinary scientific research and educational expeditions.
The ship will be equipped with launch and recovery systems for a large variety of scientific equipment such as
CTD, coring devices, remotely and autonomous operated vehicles, sledges, trawls etc. In addition, the ship is
equipped with multibeam echosounder, sub-bottom profiler, under water positioning system, and a clean
surface water supply to laboratories. The aft deck is spacious enough to mount 20 feet containerised
laboratories. Also, the ship has a mast on fore deck to facilitate air sampling for atmospheric studies. The ship
is designed, constructed and equipped for year-round service in areas from shallow coastal waters and
estuaries to deep waters mainly along the Swedish coast line, in the Baltic Sea. However, the ship has no
constraints regarding which seas to investigate. The range of the ship is around 2 000 nautical miles with an
endurance of 14 days. A maximum of 16 scientists and 5 crew members can participate in longer cruises, and
the ship is a special purpose ship which allows for student groups of 30 persons for day tours. The ship is
capable of safe navigation in ice in full compliance with the Finnish-Swedish Ice Class 1B. The environmental
aspects have been given the highest priority throughout the planning and construction phase. The ship will be
in full compliance with the convention for marine pollution prevention (MARPOL) and the ballast water
convention, as well as the convention for anti-fouling and the convention for ship recycling and inventory of
hazardous compounds.
39
SVENSKA HAVSFORSKNINGSFÖRENINGEN
THE SWEDISH SOCIETY FOR MARINE SCIENCES
Johannes Asplund-Samuelsson, John Larsson, Chris L. Dupont, Birgitta Bergman, Karolina Ininbergs, Martin
Ekman
Bacterial metacaspases, programmed cell death and population dynamics in the Baltic Sea
Cyanobacteria are primary producers, often nitrogen-fixing, that influence many aspects of the Baltic Sea
ecosystems, e.g. through annual blooms. In Trichodesmium erythraeum, a tropical marine bloom-forming
cyanobacterium, expression of metacaspase proteases is tied to programmed cell death (PCD) and stress
experienced during bloom conditions. We hypothesise that blooming cyanobacteria in the Baltic Sea may also
express metacaspases and that these possibly promote population collapse. Bacterial metacaspases are
homologs of caspases, which play important roles in eukaryotic PCD by facilitating orderly dismantling of
unwanted or damaged cells. Our metagenomic and metatranscriptomic data suggests that a variety of
metacaspases are carried by bacteria in the Baltic Sea, but that they are expressed to the greatest extent by
cyanobacteria. A number of different expression patterns were observed for the summer season of 2012 at
Askö in the Stockholm archipelago, pointing to a variety of functional specializations for these genes. Positive
correlation to total expression of mRNA for the population, a proxy for population size, was observed for two
metacaspases in Nodularia spumigena, a species of bloom-forming cyanobacteria, and one metacaspase in an
organism closely resembling Microcystis aeruginosa. Presently, studies are under way linking e.g. stress-related
genes to the expression of cyanobacterial metacaspases.
40
SVENSKA HAVSFORSKNINGSFÖRENINGEN
THE SWEDISH SOCIETY FOR MARINE SCIENCES
Åsa Berglund, Matyas Ripszam, Christine Gallampois, Agneta Andersson, Evelina Griniene, Daniela Figueroa,
Pär Byström, Peter Haglund, Mats Tysklind
Bioaccumulation of organic pollutants in present-day and climate altered food webs
We examined the effects of a warming climate on the accumulation of organic pollutants (OPs) in the Gulf of
Bothnia. This region has a long history of pollution and is highly influenced by river run-off. With the proposed
changes in climate (increased temperature and precipitation) an increased run-off to the sea is expected,
hence an increased input of dissolved organic matter (DOC) and potentially also OPs. Studies have shown that
increasing temperature and DOC results in a shift at the base of the food web, favoring bacteria over
phytoplankton. This creates more trophic levels, thus in theory top consumers may accumulate higher
concentrations of OPs. In this mesocosm-study we exposed a marine community for a cocktail of legacy and
emerging OPs, using different climate scenarios (increased temperature and DOC). We found evidence for a
bacteria favored food web with increasing DOC but the concentration of OPs in fish were not higher in DOCtreated mesocosms. If any, higher temperature resulted in increased OP concentrations in fish but at higher
temperatures DOC generally reduced the OP concentrations. Thus, increased temperature may be an
important factor for accumulation of OPs in fish, but DOC may reduce the availability of OPs.
41
SVENSKA HAVSFORSKNINGSFÖRENINGEN
THE SWEDISH SOCIETY FOR MARINE SCIENCES
Caroline Bringensparr
Glacial morphology and bathymetric mapping in Melville Bay, Western Greenland
During the VEGA Expedition, in June 2013, reflectivity (backscatter) and depth data was acquired with a
multibeam echosounder from an approximately 140 km2 large area in Melville Bay, off the coast of Western
Greenland. One of the expedition objectives was to search for and map evidences of a grounded ice sheet,
which is likely to have reached the edge of the continental shelf during the Last Glacial Maximum, about 20000
years ago. In this study, the acquired depth data was compiled to a detailed bathymetric map, which was used
to map the extension of morphological features caused by the ice sheet’s progression over the area. The
results show bedrock erosion in the form of linear features, melt-water channels and different types of
depressions. The surface sediment distribution, based on the reflectivity data, presents coarser sediment such
as gravel in the deeper parts of the survey area as well as in channels and depressions, while finer sediments
such as silt and clay can be found generally in the remainder of the area. The conclusion is that the results
strongly suggests there have been glacial erosion in this area, however it is not possible to determine when
this took place without age determination of bottom samples. For a more comprehensive understanding of the
glacial history in Melville and Baffin Bay, more surveys of this kind are necessary.
42
SVENSKA HAVSFORSKNINGSFÖRENINGEN
THE SWEDISH SOCIETY FOR MARINE SCIENCES
Sonia Brugel, Johan Wikner, Ulf Båmstedt
Physical control of phytoplankton spatio-temporal variations in the coastal Bothnian Sea
Coastal systems are highly dynamic environments where biological processes are strongly driven by physical
forcing, e.g. wind, currents, river run-off, at different scales in time and space. One important issue is to
evaluate the impact of hydrodynamic events on phytoplankton. A survey of phytoplankton dynamics has been
conducted in a coastal area under the influence of the Öre River (Northwestern Bothnian Sea) to study physical
control of phytoplankton spatio-temporal variations. The investigation of spatial variations implies sampling
cruises of short-time at fine spatial resolution and fast collection of data. Therefore, vertical profiling of multisensors platforms has been performed at 21 stations over the Öre bay at a weekly frequency from June to
December 2013, in order to cover a wide range of environmental conditions. The different sensors gave
information on the vertical distribution of temperature, salinity, light (Photosynthetically Available Radiations),
turbidity, coloured dissolved organic matter, dissolved oxygen and chlorophyll. These data together with
environmental data such as downwelling irradiance, wind speed and direction, river discharge (flow, sediments
and nutrients) and waves characteristics will be analysed in order to address the complex interaction of
environmental driving forces on phytoplankton dynamics.
43
SVENSKA HAVSFORSKNINGSFÖRENINGEN
THE SWEDISH SOCIETY FOR MARINE SCIENCES
Jenny Egardt
Impacts of outdoor recreation in marine coastal areas
Outdoor recreation can be defined as activities for leisure purposes in the outdoors, in a natural or seminatural setting. Activities in marine areas range from sunbathing and kayaking to sailing, speed boating and
seal-safaris, satisfying aspects of adventure as well as mental well-being. Kosterhavet is a marine national park,
formed in 2009 and home to a wide variety of species, both in the water and on land. With 500000 visitors per
year it is a very popular area for recreational activities. Most visits however occur during the summer season,
which creates a high pressure on the environment. A lot of visitors come in their own boats, visiting both the
guest harbors on the Koster Islands as well as the natural harbors in the archipelago. Anchors from boats can
cause abrasions on the bottom substrates; they can scrape macro-algae from hard-bottoms and tear the
rhizomes of eel-grass on sandy substrates. They also displace sediment, possibly re-introducing compounds
buried by sedimentation. Leisure boats are also a direct source of potentially harmful substances from
antifouling paints. Since there is such a high visitor number in the natural harbors it would be interesting to see
how levels of antifouling paint components in these areas compare to areas with no anchoring as well as small
harbors. Sediments have therefor been sampled, both at surface level and at 10 cm depth in a sediment core,
from natural harbors, small marinas and areas with little or no anchoring. Samples from 10 cm depth are both
a historical reference of substances but also gives an idea of what can be re-introduced to the area. The
sampled sediments are being analyzed for metal content, organic tin compounds, Irgarol 1051 and organic
carbon content. The metal content will also be determined by X-ray fluorescence (XRF) and compared to the
values given by the chemical analysis to see if XRF can be a useful method to monitor metal content in
sediments.
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SVENSKA HAVSFORSKNINGSFÖRENINGEN
THE SWEDISH SOCIETY FOR MARINE SCIENCES
Kari Eilola, Elin Almroth-Rosell, H.E. Markus Meier
Impact of saltwater inflows on phosphorus cycling and eutrophication in the Baltic Sea: a 3D model study
The impact of dense saltwater inflows on the phosphorus dynamics in the Baltic Sea is studied from tracer
experiments with a three-dimensional physical model. The coasts of the North West Gotland Basin and the
Gulf of Finland, the Estonian coast in the East Gotland Basin are regions where modelled tracers from below
the halocline are primarily lifted up above the halocline. After one year tracers are accumulated at the surface
along the Swedish east coast and at the western and southern sides of Gotland. Elevated concentrations are
also found east and southeast of Gotland, in the northern Bornholm Basin and in the central parts of the East
Gotland Basin. The annual supplies of phosphorus from the deeper waters to the productive surface layers are
estimated to be of the same order of magnitude as the waterborne inputs of phosphorus to the entire Baltic
Sea. Largest regional increases in surface concentrations are found after large inflows. However, the overall
direct impact of major Baltic inflows on the annual uplift of nutrients from below the halocline to the surface
waters is small because vertical transports are comparably large also during periods without major inflows.
Our model results suggest that phosphorus released from the sediments between 60 and 100 m depth in the
East Gotland Basin contributes to the eutrophication, especially in the coastal regions of the eastern Baltic
Proper.
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SVENSKA HAVSFORSKNINGSFÖRENINGEN
THE SWEDISH SOCIETY FOR MARINE SCIENCES
Evelina Grinienė, Åsa Berglund, Daniela Figueroa, Agneta Andersson
Trophic role of ciliates in present-day and climate-altered pelagic food webs
Current climate change scenarios for the northern Baltic Sea indicate that the global temperature will increase
in the future and that precipitation will be altered. Increased precipitation will lead to larger river discharge,
accompanied by higher inflow of allochthonous organic carbon (ADOC). This may cause a change at the base of
the food web, favoring bacteria over phytoplankton. Ciliates may become an important intermediate trophic
link in the food web. We performed an experiment where effects of 4 oC higher temperature and increased
ADOC input on the pelagic food web channeling were studied. The taxonomic and functional diversity of
ciliates were analyzed as well as their grazing rates on bacteria and phytoplankton fractions. It was found that
the “climate altered” system favoured bacterivorous naked oligotrichs and peritrichs, while than algivorous
tintinnids were promoted in the “present-day” system. Grazing experiment showed that slightly more energy
was channeled from bacteria and up the food web in the “climate-altered” system, while the “phytoplanktonpathway” was more important in the “present-day” system. Our data indicate that climate change will cause
alterations of the food web function in coastal systems.
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SVENSKA HAVSFORSKNINGSFÖRENINGEN
THE SWEDISH SOCIETY FOR MARINE SCIENCES
Mikael Gustavsson, Jörgen Magnér, Thomas Backhaus
Risk assessment of chemical mixtures on the Swedish west coast using data from water monitoring
In a recent screening campaign more than 60 different chemical compounds were detected in water from the
Swedish west coast. The screening campaign covered five different sites and a total of 172 different
compounds from a variety of different chemical use classes. The detected compounds included, for instance,
pesticides, pharmaceuticals, phtalates and surfactants. For all detected compounds the environmental quality
standard of the compound was thereafter determined. Data was gathered, primarily from the water
framework directive and the REACH (Registration, Evaluation, Authorisation and restriction of Chemicals)
registry database. The combination of detected concentrations and environmental quality standards enables a
ranking of risk from the individual chemical compounds found at the Swedish west coast, as well as a
determination of the risk from the combined exposure. Results show that triclosan was the compound that
most often exceeded the environmental quality standard. Also, at none of the five sites where samples were
taken was the combined risk from the exposure at acceptable levels. Finally, all environmental quality
standards gathered has been compared to modelled toxicity data to determine the risks from using computerbased technologies as opposed to experimental data.
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SVENSKA HAVSFORSKNINGSFÖRENINGEN
THE SWEDISH SOCIETY FOR MARINE SCIENCES
Joakim Hansen
Applying a macrophyte community index to assess anthropogenic pressures on shallow soft bottoms
Vegetated soft bottoms are under pressure due to a number of anthropogenic stressors, such as coastal
exploitation and eutrophication. The ecological value of these biotopes has gained recognition through
international conventions and the EU directives, which request methods for assessment of the environmental
status of coastal areas. However, currently there is no appropriate method for assessing the status of shallow
vegetated soft bottoms in the northern Baltic Sea. Therefore, we developed a macrophyte community index
and tested its response in relation to important pressures and natural gradients on shallow bays in the
northern Baltic Sea. The macrophyte index, and hence the proportion of sensitive slow-growing to fastgrowing shade-tolerant species, decreased with increasing phosphorus concentration, turbidity and level of
boating activity. Juvenile fish abundance was positively related to the index, indicating importance of sensitive
macrophyte species for ecosystem functioning. As the index was tested in a wide geographic area, and showed
a uniform response across natural gradients, it is a promising tool for assessment of environmental status that
may be applied also in other regions.
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SVENSKA HAVSFORSKNINGSFÖRENINGEN
THE SWEDISH SOCIETY FOR MARINE SCIENCES
E. Therese Harvey, Susanne Kratzer, Agneta Andersson
Distributions and optical properties of Coloured Dissolved Organic Matter (CDOM) and Dissolved Organic
Carbon (DOC) in coastal gradients of the Baltic Sea
The largest pool of carbon near the surface on Earth is found in the oceans as Dissolved Organic Matter (DOM)
of which Dissolved Organic Carbon (DOC) stands for a major part. The Baltic Sea is rich in Coloured Dissolved
Organic Matter (CDOM) that is closely linked to the DOC pool. CDOM absorption stands for the main
contribution of the total absorption in the Baltic Sea. CDOM absorption influences the underwater light field
by regulating the Photosynthetically Active Radiation that is available for phytoplankton. Despite its diverse
ecological importance in the marine systems CDOM is poorly studied in the Baltic Sea and not routinely
measured within monitoring programs. The distribution, concentrations and relationships between CDOM,
DOC, salinity and Secchi depth are variable. Here, we present in situ data of CDOM, DOC and their
relationships from coastal gradients in the Gulf of Bothnia and the Baltic proper. We investigated relationships
between CDOM absorption, g440, spectral slope of CDOM absorption; S350-500, DOC concentration, salinity and
Secchi depth in the different regions by generalized linear models. The average absorption was much higher
(g440 up to 8.8 m-1) in the northern part, whereas the S350-500 was more variable in the central Baltic. We found
significant relationships between the northern (very high CDOM) part compared to the central Baltic Sea. The
proportion of non-coloured DOC was derived for the respective areas and differed substantially. The results
are important for management, for evaluating changes in Secchi depth and the productive status of the Baltic
Sea. Further knowledge of CDOM dynamics is required for refining remote sensing algorithms, especially in
regions with higher CDOM concentrations.
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SVENSKA HAVSFORSKNINGSFÖRENINGEN
THE SWEDISH SOCIETY FOR MARINE SCIENCES
Isabella Lindstrøm Larsen
Effects of climate change on the food quality of Baltic phytoplankton – In the laboratory and in the field
The effect of increasing temperature and carbon dioxide partial pressure (pCO2) on assembly and biochemical
composition of a natural phytoplankton community of the Baltic Sea was studied in an out-door mesocosm
experiment over a period of 12 days. Sixteen mesocosms of ~45L each were exposed to two different
temperature and CO2 levels representing present day and projected levels by year 2100. During the study, the
relative biomass of dinoflagellates was affected negatively by temperature, while the contribution of the fatty
acid 18:1ω9 increased with temperature. The effect of projected CO 2 on the food quality of two indigenous
Baltic Sea algae was studied in a laboratory monoculture experiment. The indirect effects on copepod growth
and reproduction were also tested. In Rhodomonas baltica, CO2 had a negative effect on the essential C 18
polyunsaturated fatty acids 18:3ω3 and 18:4ω3. No changes in stoichiometry were seen in any of the
experiments. Copepods fed 50:50 mix cultures grown at high CO2 showed tendencies for impaired
development. However, this was not statistically significant. These studies show that the nutritional quality of
algae may be affected, but do not confirm a general lowered food quality of phytoplankton in the future
oceans.
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SVENSKA HAVSFORSKNINGSFÖRENINGEN
THE SWEDISH SOCIETY FOR MARINE SCIENCES
Nurun Nahar, Björn Andersson, Isabell Klawonn, Jakob Walve, Martin Whitehouse, Helle Ploug
Carbon and N2 fixation by Aphanizomenon sp. Nodularia spumigena, and Dolichospermum spp in the Baltic
Sea Proper
Using the dual labeling approach with stable isotope tracers ( 13C-bicarbonate and 15N2) combined with mass
spectrometry, we investigated the role of the N 2-fixing cyanobacteria, Aphanizomenon sp., Nodularia
spumigena, and Dolichospermum spp (formerly Anabaena spp.) with respect to carbon and nitrogen fixation
within the phytoplankton community in the Baltic Sea Proper. In situ depth profiles of community
composition, C- and N2-fixation were measured during June, July, and August 2013. The average C:N (mol:mol)
ratio of the particulate organic matter in the water column was 8.7. Assuming a C:N ratio of 6.6 (Redfield ratio)
of the phytoplankton community, N2 fixation covered between 5-40% of the nitrogen demand by the
community, depending on community composition, depth, and season. N 2-fixation in June was similar to that
measured in July and higher than that measured in August. Secondary ion mass spectrometry (SIMS) is a high
spatial resolution technique by which isotopic composition and cell identity can be measured simultaneously in
mixed field populations. We will present the first in situ data of cell-specific C- and N2-fixation rate that was
measured by SIMS in Aphanizomenon sp., Nodularia spumigena, and Dolichospermum spp as a function of
depth in the Baltic Sea Proper.
51
SVENSKA HAVSFORSKNINGSFÖRENINGEN
THE SWEDISH SOCIETY FOR MARINE SCIENCES
Oscar Nordahl, Petter Tibblin, Anders Forsman, Per Larsson
Life-history strategies differ among sympatric subpopulations of anadromous pike (Esox lucius)
Pike (Esox lucius) is a top-predator in the coastal fish community in the Baltic Sea. Previous studies have shown
natal site fidelity among anadromous pike in this area. As a result, several subpopulations are coexisting on a
micro geographic scale, only separated spatially during spawning. Body size-distribution and growth
trajectories have been observed to differ among them, and hence, it has been hypothesized that this reflects
local adaptation of life-history traits important for fisheries management. We studied variation in life-history
strategies among 4 coexisting subpopulations of pike. Reproductive effort, fecundity and egg size differed
significantly, giving every subpopulation its own suite of pike life-history characteristics. These results,
together with a consistent somatic condition suggest different strategies of energy allocation between
subpopulations, despite the intraspecific level and the fact that they only separate during spawning. For
fisheries management this implies that coexisting subpopulations of pike cannot be treated as one unit.
Furthermore, subpopulations may differ in their capacity to produce large, game-sized individuals due to their
inherited strategy of energy allocation between growth, reproduction and longevity.
52
SVENSKA HAVSFORSKNINGSFÖRENINGEN
THE SWEDISH SOCIETY FOR MARINE SCIENCES
Johan Wikner, Kevin Vikström, Anders Tengberg
Precise measurements of pelagic respiration by Oxygen Optodes with Titanium housing
An analytical setup for respiration rate measurements was developed and evaluated in pelagic water samples
using a commercially available optical oxygen sensor with titanium housing (Optode). A gas tight stopper was
developed to connect the sensors to a 1 dm3 glass sample bottle, precise temperature control (± 0.05 C) and
proper stirring of samples. The detection limit and precision of for individual sensors was 0.96 mmol O2 m-3
day-1. This was slightly higher than the best detection limit for the high-precision Winkler titration method
reported in field studies. By using replicate sensors the detection limit could be improved to 0.14 mmol O2 m-3
day-1. The main source of uncertainty was a necessary correction for system drift, which was reduced
substantially by use of titanium housing as compared to plastic housing. When compared with the Winkler
method, the Optode sensor enabled operator independent, high temporal resolution measurement of
respiration, better coverage of plankton groups and detection of non-linear oxygen decline, without the need
for wet chemistry. We conclude that the developed Optode system can be used to measure respiration in
productive coastal waters. Samples from oceanic deep waters will often be below the detection limit.
53
SVENSKA HAVSFORSKNINGSFÖRENINGEN
THE SWEDISH SOCIETY FOR MARINE SCIENCES
Conference dinner in Umea:
Guitars – The Museum
The conference dinner will be held at Guitars –
Bar & Restaurant. From 2014 the whole world
has the opportunity to take part of one of the
world’s largest private collections of guitars. It is
the Umeå brothers Samuel and Michael Åhdén’s
unique collection of guitars, basses, amplifiers
and musical props that form the basis for a
comprehensive exhibition.
The conference dinner at Guitars will start at
19.00 with a round-tour in the museum, and then
we will be served a XXX in the restaurant.
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SVENSKA HAVSFORSKNINGSFÖRENINGEN
THE SWEDISH SOCIETY FOR MARINE SCIENCES
List of Participants
Last name
First name
University/authority
E-mail
Ahlgren
Joakim
Umeå University
[email protected]
Albertsson
Jan
Umeå University
[email protected]
Almroth-Rosell
Elin
SMHI
[email protected]
Andersson
Agneta
Umeå University
[email protected]
Ask
Jenny
Umeå University
[email protected]
Asplund-Samuelsson
Johannes
Stockholm University
[email protected]
Assefa
Anteneh
Umeå University
[email protected]
Backman
Sofie
Kalmar kommun
[email protected]
Bergkvist
Johanna
Göteborgs Universitet
[email protected]
Berglund
Åsa
Umeå university
[email protected]
Berglund
Johnny
Länsstyrelsen
[email protected]
Berglund
Per-Arvid
Stockholms Universitet
[email protected]
Brenner
Ulrika
Stockholm University
[email protected]
Bringensparr
Caroline
Stockholm University
[email protected]
Brugel
Sonia
Umeå University
[email protected]
Bunse
Carina
Linnaeus University
[email protected]
Byström
Pär
Umeå University
[email protected]
Celander
Gun
Umeå Universitet
[email protected]
Crona
Johanna
Umeå Universitet
[email protected]
Dagberg
Nina
Umeå universitet
[email protected]
Dimming
Anna
Länsstyrelsen Västra Götalands län
[email protected]
Egardt
Jenny
University of Gothenburg
[email protected]
Elfwing
Tina
Stockholm University
[email protected]
Engel
Anja
Helmholtz Centre for Ocean Research Kiel
[email protected]
Engström-Öst
Jonna
Åbo Akademi University
[email protected]
Figueroa
Daniela
Umeå University
[email protected]
Forsman
Anders
Linnaeus University
[email protected]
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SVENSKA HAVSFORSKNINGSFÖRENINGEN
THE SWEDISH SOCIETY FOR MARINE SCIENCES
Gammeltoft
Annica
Länsstyrelsen i Norrbottens län
[email protected]
Griniene
Evelina
Umeå University
[email protected]
Gustafsson
Erik
Stockholms Universitet
[email protected]
Gustavsson
Mikael
University of Gothenburg
[email protected]
Hansen
Joakim
Stockholm University
[email protected]
Hassellov
Ida-Maja
Chalmers University of Technology
[email protected]
Huseby
Siv
Umeå University
[email protected]
Hutchings
Jeffrey
Dalhousie University
[email protected]
Israelsson
Stina
Linnaeus University
[email protected]
Karlson
Agnes
Stockholm University
[email protected]
Karlsson
Chatarina
Umeå universitet
[email protected]
Konradsson
Katarina
Umeå Universitet
[email protected]
Larsson
Per
Linneaus University
[email protected]
Laugen
Ane T.
Åbo Akademi
[email protected]
Liess
Antonia
Umeå University
[email protected]
Lindh
Markus
Linnaeus University
[email protected]
Magnhagen
Carin
SLU
[email protected]
Nahar
Nurun
University of Gothenburg
[email protected]
Nordahl
Oscar
Linnaeus University
[email protected]
Olofsson
Malin
Göteborgs Universitet
[email protected]
Paczkowska
Joanna
Umea University
[email protected]
Paz von Friesen
Carlos
Länsstyrelsen i Västerbotten
[email protected]
Pekkarinen Rieppo
Hanna-Mari
Länsstyrelsen i Västra Götaland
[email protected]
Rodríguez Serrano
Juan José
Umeå University
[email protected]
Rolff
Carl
Stockholm University
[email protected]
Rådman
Petra
Umeå universitet
[email protected]
Stenman
Åsa
Umeå Universitet
[email protected]
Tibblin
Petter
Linnaeus University
[email protected]
Tidlund
Annika
Stockholm University
[email protected]
Turner
David
University of Gothenburg
[email protected]
Viklund
Kristina
Umeå universitet
[email protected]
Vikström
Kevin
Umeå University
[email protected]
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SVENSKA HAVSFORSKNINGSFÖRENINGEN
THE SWEDISH SOCIETY FOR MARINE SCIENCES
Vøllestad
Asbjørn
University of Oslo
[email protected]
Westling
Anna
SLU
[email protected]
Wikner
Johan
Umeå universitet
[email protected]
Åstrand Capetillo
Nastassja
Stockholm University
[email protected]
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SVENSKA HAVSFORSKNINGSFÖRENINGEN
THE SWEDISH SOCIETY FOR MARINE SCIENCES
58
SVENSKA HAVSFORSKNINGSFÖRENINGEN
THE SWEDISH SOCIETY FOR MARINE SCIENCES
The Swedish Society for Marine Sciences is a nonprofit
organization with a mission to promote cooperation
between Swedish institutions and individuals who
take a professional interest in the marine
environment.
As part of promoting the goals of our society, we
organize the Marine Sciences Conference. This annual
event is open to researchers, governmental
organizations and private interest groups and serves
as a great platform to present work and have
discussions on current marine issues.
© Katarina Stenman
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