Winter et al 1997b
... components from the Late Cenozoic Arctic Ocean: Implications for sediment provenance and the source of trace metals in seawater BRYCE L. WINTER, CLARK M. JOHNSON, and DAVID L. CLARK University of Wisconsin, Department of Geology and Geophysics, Madison, Wisconsin 53706, USA (Received August 15, 1996 ...
... components from the Late Cenozoic Arctic Ocean: Implications for sediment provenance and the source of trace metals in seawater BRYCE L. WINTER, CLARK M. JOHNSON, and DAVID L. CLARK University of Wisconsin, Department of Geology and Geophysics, Madison, Wisconsin 53706, USA (Received August 15, 1996 ...
terrestrial food webs All wet or dried up? Real differences between
... nutrients entering the system, and the efficiencies of trophic transfer among the compartments. According to this view, apparent contrasts between aquatic and terrestrial ecosystems arise from differences in energy or nutrient availability, or the efficiency with which energy or materials are exchan ...
... nutrients entering the system, and the efficiencies of trophic transfer among the compartments. According to this view, apparent contrasts between aquatic and terrestrial ecosystems arise from differences in energy or nutrient availability, or the efficiency with which energy or materials are exchan ...
CV - Aquatic Biogeochemistry at NC State University
... 46. Tzortziou, M., Osburn, C.L. and P. J. Neale. (2007) Photobleaching of dissolved organic material from a tidal marshestuarine system of the Chesapeake Bay. Photochemistry and Photobiology. 83: 782-792. 47. Boyd, T.J., Osburn, C.L., Johnson, K.J., Birgl, K.B., Coffin, R.B. (2006) Compound-specific ...
... 46. Tzortziou, M., Osburn, C.L. and P. J. Neale. (2007) Photobleaching of dissolved organic material from a tidal marshestuarine system of the Chesapeake Bay. Photochemistry and Photobiology. 83: 782-792. 47. Boyd, T.J., Osburn, C.L., Johnson, K.J., Birgl, K.B., Coffin, R.B. (2006) Compound-specific ...
Use of natural and created Spartina alterniflora salt marshes by
... gauges. Data were obtalned from NOAA's National Ocean Service tide gauge at Pier 21 In the Galveston Channel (Statlon Number 877-1450), and w e installed 2 temporary gauges, one in West Bay at Jamaica Beach a n d one In East Bay on Bolivar Peninsula (Fig. 1 ) . These temporary gauges consisted of da ...
... gauges. Data were obtalned from NOAA's National Ocean Service tide gauge at Pier 21 In the Galveston Channel (Statlon Number 877-1450), and w e installed 2 temporary gauges, one in West Bay at Jamaica Beach a n d one In East Bay on Bolivar Peninsula (Fig. 1 ) . These temporary gauges consisted of da ...
Nitrogen isotopes in bulk marine sediment: linking seafloor
... slowly accumulating sediments, which calls on differential loss rates for pools of organic N with different δ 15 N. We conclude that bulk sedimentary nitrogen isotope records are reliable monitors of past changes in the marine nitrogen cycle at most locations, and could be further improved with a be ...
... slowly accumulating sediments, which calls on differential loss rates for pools of organic N with different δ 15 N. We conclude that bulk sedimentary nitrogen isotope records are reliable monitors of past changes in the marine nitrogen cycle at most locations, and could be further improved with a be ...
Durham Research Online
... “tipping point” in the Earth surface system, when the polar ice sheet was large enough to have a ...
... “tipping point” in the Earth surface system, when the polar ice sheet was large enough to have a ...
DFO. 2006. Assessing Habitat Risks Associated with Bivalve
... tailored specifically to the question of interest. All model output should be interpreted with caution and used in concert with other site information. Three types of models, near-field wastesedimentation models, lower-trophic box models, and simple index models, were examined. The first one address ...
... tailored specifically to the question of interest. All model output should be interpreted with caution and used in concert with other site information. Three types of models, near-field wastesedimentation models, lower-trophic box models, and simple index models, were examined. The first one address ...
2016 - Plateforme Océan et Climat
... The ocean is an essential component of our planet’s climate. Scientists know this, and have repeatedly proven it: without the ocean, our greenhouse gas emissions would have disrupted the climate machine to a much greater extent. It is hence an essential regulator that is constantly threatened by hum ...
... The ocean is an essential component of our planet’s climate. Scientists know this, and have repeatedly proven it: without the ocean, our greenhouse gas emissions would have disrupted the climate machine to a much greater extent. It is hence an essential regulator that is constantly threatened by hum ...
Lytic viral infection of bacterioplankton in deep
... Y. Li et al.: Lytic viral infection of bacterioplankton in deep waters the dark at in situ temperature setup with dry bath incubators (MK-20, Hangzhou Allsheng, China), the samples were fixed and then filtered onto 0.22- µm-pore-size cellulose nitrate filters (Millipore). Later, analysis was perfor ...
... Y. Li et al.: Lytic viral infection of bacterioplankton in deep waters the dark at in situ temperature setup with dry bath incubators (MK-20, Hangzhou Allsheng, China), the samples were fixed and then filtered onto 0.22- µm-pore-size cellulose nitrate filters (Millipore). Later, analysis was perfor ...
Section 300.18 Submerged Aquatic Vegetation and
... 6. Water quality and, in particular light intensity reaching the leaves is considered the most critical factor in the maintenance of healthy SAV habitats. Light availability controls the depth of SAV because SAV is dependent on photosynthesis. SAV generally require light intensities of 15-25% of the ...
... 6. Water quality and, in particular light intensity reaching the leaves is considered the most critical factor in the maintenance of healthy SAV habitats. Light availability controls the depth of SAV because SAV is dependent on photosynthesis. SAV generally require light intensities of 15-25% of the ...
- Wiley Online Library
... when cells are N limited [Droop, 1983]. Thus, N limitation commonly results in an increased cellular C:N ratio [Goldman and Peavey, 1979; Vrede et al., 2002]. The second mechanism links light limitation with a lower cellular C:N ratio as phytoplankton growing under low light irradiance may accumulat ...
... when cells are N limited [Droop, 1983]. Thus, N limitation commonly results in an increased cellular C:N ratio [Goldman and Peavey, 1979; Vrede et al., 2002]. The second mechanism links light limitation with a lower cellular C:N ratio as phytoplankton growing under low light irradiance may accumulat ...
Effects of Anthropogenic Stressors and Changes in Biodiversity on Lower Chesapeake Bay, VA USA Seagrass Systems
... Anthropogenic stressors are increasingly changing conditions in coastal areas and impacting important habitats. But, when multiple stressors act simultaneously, their effects on ecosystems become more difficult to predict. In Chesapeake Bay, USA, predictions suggest that anthropogenic stressors from ...
... Anthropogenic stressors are increasingly changing conditions in coastal areas and impacting important habitats. But, when multiple stressors act simultaneously, their effects on ecosystems become more difficult to predict. In Chesapeake Bay, USA, predictions suggest that anthropogenic stressors from ...
U N E P Y E A R
... Nitrogen does not move through all environmental systems at the same rate. For example, soil, forests and grasslands accumulate it, which can lead to slowing of the nitrogen cascade, while air transfers the nitrogen more rapidly. Excess nitrogen in the environment contributes to many health and envi ...
... Nitrogen does not move through all environmental systems at the same rate. For example, soil, forests and grasslands accumulate it, which can lead to slowing of the nitrogen cascade, while air transfers the nitrogen more rapidly. Excess nitrogen in the environment contributes to many health and envi ...
Marine-Policy 74:245-259 - Scripps Institution of Oceanography
... Recovery rates are unknown, but expect recovery to be slow or not possible for those sessile species that rely on large phosphorite nodules for habitat (e.g. corals and sponges). ...
... Recovery rates are unknown, but expect recovery to be slow or not possible for those sessile species that rely on large phosphorite nodules for habitat (e.g. corals and sponges). ...
MAREDAT: towards a world atlas of MARine Ecosystem DATa
... variables have been gridded onto a World Ocean Atlas (WOA) grid (1◦ × 1◦ × 33 vertical levels × monthly climatologies). The results show that abundance is much better constrained than their carbon content/elemental composition, and coastal seas and other high productivity regions have much better co ...
... variables have been gridded onto a World Ocean Atlas (WOA) grid (1◦ × 1◦ × 33 vertical levels × monthly climatologies). The results show that abundance is much better constrained than their carbon content/elemental composition, and coastal seas and other high productivity regions have much better co ...
MAREDAT: towards a world atlas of MARine Ecosystem DATa
... variables have been gridded onto a World Ocean Atlas (WOA) grid (1◦ × 1◦ × 33 vertical levels × monthly climatologies). The results show that abundance is much better constrained than their carbon content/elemental composition, and coastal seas and other high productivity regions have much better co ...
... variables have been gridded onto a World Ocean Atlas (WOA) grid (1◦ × 1◦ × 33 vertical levels × monthly climatologies). The results show that abundance is much better constrained than their carbon content/elemental composition, and coastal seas and other high productivity regions have much better co ...
Nutrient dynamics and phytoplankton development along an
... from the processes in the coastal zone. The dynamic interplay between the two ecosystems and the intense process rates operating at their transition, therefore, strongly supports our continuum approach. © 2010 Elsevier B.V. All rights reserved. ...
... from the processes in the coastal zone. The dynamic interplay between the two ecosystems and the intense process rates operating at their transition, therefore, strongly supports our continuum approach. © 2010 Elsevier B.V. All rights reserved. ...
Large Marine Ecosystems
... 2.6 Degradation and loss of habitat is of major concern in LMEs. Twenty per cent of global mangrove area was lost from 1980 to 2005. Loss continues at about 1 per cent per year, mainly driven by land clearing for development. By 2030, more than half of warm-water coral reefs are projected to be at ...
... 2.6 Degradation and loss of habitat is of major concern in LMEs. Twenty per cent of global mangrove area was lost from 1980 to 2005. Loss continues at about 1 per cent per year, mainly driven by land clearing for development. By 2030, more than half of warm-water coral reefs are projected to be at ...
38th SCOR EXECUTIVE COMMITTEE MEETING Bergen, Norway
... modeling and analysis efforts will be considered based on subsequent inputs. The proposal for a WG on Land-Based Nutrient Pollution and the Relationship to Harmful Algal Blooms in Coastal Marine Systems, another very important and timely topic was recommended for strengthening the proposal so that i ...
... modeling and analysis efforts will be considered based on subsequent inputs. The proposal for a WG on Land-Based Nutrient Pollution and the Relationship to Harmful Algal Blooms in Coastal Marine Systems, another very important and timely topic was recommended for strengthening the proposal so that i ...
Ocean Storage of CO2
... surface; this fraction ranges from 100% at the time of injection to zero at equilibrium. The exact time depends on the location and depth of the injection. Several computer-modeling studies have investigated CO2 retention time in the world’s oceans. The most comprehensive summary is the Global Ocean ...
... surface; this fraction ranges from 100% at the time of injection to zero at equilibrium. The exact time depends on the location and depth of the injection. Several computer-modeling studies have investigated CO2 retention time in the world’s oceans. The most comprehensive summary is the Global Ocean ...
Habitat Monitoring Strategy for the Tidal Skagit Delta Integrating
... themselves. The Skagit Chinook Recovery Plan describes a monitoring plan to relate the distribution, abundance, productivity, and migration timing of juvenile Chinook salmon in tidal marshes and nearshore habitats to habitat restoration (Greene & Beamer 2005). This Chinook monitoring plan is a rare ...
... themselves. The Skagit Chinook Recovery Plan describes a monitoring plan to relate the distribution, abundance, productivity, and migration timing of juvenile Chinook salmon in tidal marshes and nearshore habitats to habitat restoration (Greene & Beamer 2005). This Chinook monitoring plan is a rare ...
current O a —
... chemistry caused largely by human combustion of fossil fuels. Ocean acidification will have severe consequences for marine life and humankind, and has been nicknamed global warming’s “evil twin.” The articles in this special issue focus on multiple facets of ocean acidification, including threats to ...
... chemistry caused largely by human combustion of fossil fuels. Ocean acidification will have severe consequences for marine life and humankind, and has been nicknamed global warming’s “evil twin.” The articles in this special issue focus on multiple facets of ocean acidification, including threats to ...
Rare earth elements and neodymium isotopes in sedimentary
... complex mixture of natural biopolymers (e.g. lipids, sugars, proteins), geopolymers (e.g. humic substances) and bio-monomers related, or not, to microbial degradation (Killops and Killops, 2004, Lee et al., 2004, Meyers and Ishiwatari, 1993 and Wakeham and Lee, 1989). The organic compounds present i ...
... complex mixture of natural biopolymers (e.g. lipids, sugars, proteins), geopolymers (e.g. humic substances) and bio-monomers related, or not, to microbial degradation (Killops and Killops, 2004, Lee et al., 2004, Meyers and Ishiwatari, 1993 and Wakeham and Lee, 1989). The organic compounds present i ...
A meso-predator release of stickleback promotes recruitment of
... manipulating stickleback abundances in enclosures. In order to approach an ecosystem-relevant scale, we set up four large enclosures of approximately 20 × 30 m (600 m²) by closing off beach sections with nets. The low number of replication was a compromise of obtaining a low variability both within ...
... manipulating stickleback abundances in enclosures. In order to approach an ecosystem-relevant scale, we set up four large enclosures of approximately 20 × 30 m (600 m²) by closing off beach sections with nets. The low number of replication was a compromise of obtaining a low variability both within ...
Comparison of remotely-sensed surveys vs. in situ plot
... Institute of Marine and Coastal Sciences, Rutgers University, New Brunswick, NJ, USA ...
... Institute of Marine and Coastal Sciences, Rutgers University, New Brunswick, NJ, USA ...