The eco-geography of the brown shrimp Crangon crangon in Europe
... life history parameters are observed, most likely reflecting temperature conditions. Due to its generally
high abundance, the common shrimp forms a key component in the functioning of coastal shallow
ecosystems; however, it is unclear whether the population dynamics of the species is subject to topd ...
Seagrass Literature Review - Department of Environment, Land
... tasmanica, see Kuo 2005) Both species have been recorded from Victoria, however, only H.
nigricaulis has been confirmed growing in Port Phillip Bay (Kuo 2005). Due to the recent
revision of the genus, H. nigricaulis and H. tasmanica will be referred to as Heterozostera in the
present review. These t ...
A review of the biology of Gambusia affinis and G. holbrooki
... have been diﬃcult or impossible to obtain through
available library resources. I have so far been able
to view about 700 of the relevant documents in my
bibliography and obtain abstracts from about 400
more, but this still leaves about 700 documents for
which I know little more than the title. In ad ...
* RESEARCH REPORT DNR Evaluation of the Reintroduction of the Arctic
... success to physical, chemical, and biotic
habitat characteristics of the stocked lakes and
streams. The research was intended to
determine what Michigan habitats, if any,
might be suitable for grayling so that any
future stocking attempts could be made into
waters where survival, growth, and
POSITIVE INDIRECT EFFECTS OF REEF FISHES ON KELP
... role in giant kelp forest communities by preventing infestations of mesograzers that could
severely impact or potentially destroy recovering kelp forests after extreme disturbance events.
However, these trophic linkages, speciﬁcally the direct and indirect effects of ﬁshes on the
biomass of mesograz ...
Ecology and Management of the Bull Kelp, Nereocystis luetkeana
... these localized and regional threats, kelp forests are vulnerable to climate change. The existence
and tremendous productivity of these forests rely on the upwelling of deep offshore nutrient-rich
waters. This upwelling process is driven by coastal winds that move surface waters offshore,
driving t ...
predation of juvenile crassostrea virginica by two species of mud
... on the estimated predation rates from the current study, the E.
depressus population within a 1-m2 area could have the capacity
to consume more than 2,000 spat in 4 days and R. harrisii could
have the capacity to consume approximately 500 spat during
the same time period. Because restoration efforts ...
INTRODUCTION - Wild Utah Project
... The Least chub is endemic to the Bonneville Basin of Utah where it was once widely
distributed (Bailey 2006). Over the past 15,000 years, least chub persisted in relict
wetlands pockets left by the receding Lake Bonneville and Lake Provo (Fig. 1), where it
occupied a variety of habitats including ri ...
The Influence of Interspecific Competition and Other Factors on the
... Other factors which may have inifluencedthe distribution were also studied. The study was made
at Millport, Isle of Cumbrae, Scotland.
I would like to thank Prof. C. M. Yonge and
the staff of the Marine Station, Millport, for their
help, discussions and encouragement during the
course of this work. ...
Review of techniques and practices in controlling tilapia populations
... of the island country in terms of geography, topography, climate, educational status of the citizens, aquatic environment, governance and economy. The Republic of Nauru was described by
Wetland International (1990) as comprising a single raised coral limestone island with a total
land area of about ...
Conservation Management of the White
... eggs to the abdominal limbs as they are laid. The reproductive rate is relatively low (an average
of 60-80 eggs per year). Fecundity increases with size, but very large females may have few
eggs and egg sizes may be variable (Woodlock and Reynolds, 1988; Reynolds et al., 1992).
For the next 8 to 10 ...
... energy through the process of photosynthesis.
Photosynthesis captures light energy and uses it to power chemical
reactions that convert carbon dioxide and water into oxygen and
energy-rich carbohydrates. This process adds oxygen to the
atmosphere and removes carbon dioxide.
Plants are the main photo ...
Salmon and Steelhead Habitat Limiting Factors Report for the CEDAR
... “…salmon are among the oldest natives of the Pacific Northwest, and over millions of
years they learned to inhabit and use nearly all the region’s freshwater, estuarine and marine
habitats. …From a mountaintop where an eagle carries a salmon carcass to feed its young,
out to the distant oceanic wat ...
Infralittoral biotopes - The Marine Life Information Network
... The most likely smothering event in this habitat is by other species, for instance, a
dense settlement of a colonial ascidian over other species. Some existing species
such as sponges are likely to be killed as access to food and oxygen will be denied.
Others, such as Alcyonium digitatum and sea ane ...
Orconectes rusticus The goals of this document are to: State of Michigan’s
... Rotenone. Pyblast in particular is cost effective and methodically simple to apply; it also
brakes down quickly, has low toxicity to mammals and birds, has no toxic residues, and
produces high mortality rates (Gherardi et al. 2011). However, Pyblast is toxic to fish and
other crustacean, making isol ...
Habitat-Based Intraguild Predation By Caribbean Reef Octopus
... sites; the sizes of tethered lobsters were the same on all
sites. Lobsters were tethered 2 m apart in a line
through the center of the array of artificial shelters.
Lobsters were tethered close enough to natural structures so that they could be next to one in order to minimize the stress of being in ...
Habitat Stewardship Series
... these habitats and their associated wildlife. Development, road-building and re-grading of land can ﬁll and destroy vernal pools, causing immediate loss of habitat and (for
some species) permanent loss of populations.
Many amphibians breed in the pools where they hatched, returning to the same pool
A lake ecosystem includes biotic (living) plants, animals and micro-organisms, as well as abiotic (nonliving) physical and chemical interactions.Lake ecosystems are a prime example of lentic ecosystems. Lentic refers to stationary or relatively still water, from the Latin lentus, which means sluggish. Lentic waters range from ponds to lakes to wetlands, and much of this article applies to lentic ecosystems in general. Lentic ecosystems can be compared with lotic ecosystems, which involve flowing terrestrial waters such as rivers and streams. Together, these two fields form the more general study area of freshwater or aquatic ecology. Lentic systems are diverse, ranging from a small, temporary rainwater pool a few inches deep to Lake Baikal, which has a maximum depth of 1740 m. The general distinction between pools/ponds and lakes is vague, but Brown states that ponds and pools have their entire bottom surfaces exposed to light, while lakes do not. In addition, some lakes become seasonally stratified (discussed in more detail below.) Ponds and pools have two regions: the pelagic open water zone, and the benthic zone, which comprises the bottom and shore regions. Since lakes have deep bottom regions not exposed to light, these systems have an additional zone, the profundal. These three areas can have very different abiotic conditions and, hence, host species that are specifically adapted to live there.