Примеры использования Benthic organisms на Английском языке и их переводы на Русский язык
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Benthic Organisms.
Net plankton/Benthic organisms.
Benthic organisms/Forage fish.
Elevated concentrations of components of PentaBDE in sediments may present risk to benthic organisms.
The exception to this trend was the biomagnification of BDE-99 from benthic organisms to forage fish, which had a biomagnification factor of 0.8.
Fishing footprint- The area of the seafloor within which fishing gear interacts with benthic organisms.
The Working Group noted that assessing the impact of pots on benthic organisms is difficult as few specimens were likely to be brought to the surface.
The risk assessment for the freshwater environment represents a locally contaminated site andidentified a risk to benthic organisms.
On the other hand, the mobility of the overlying waters could buffer benthic organisms from the consequences of intense, local activity near the surface.5.
The significant reduction of the quantity of chemical used is expected to cause an actual reduction of the risk to the environment,especially wildlife and benthic organisms.
It is clearly stated that concern about environmental exposure such as deleterious effects on benthic organisms was the main reason for the final regulatory action.
For benthic organisms no studies were available and the water-sediment equilibrium partitioning approach was therefore used to estimate a critical toxicity value(CTV) of 20.8 micrograms per gram dry weight.
Fishing gear such as longlines andpots are not designed to sample benthic organisms, however, the incidental take of VME-indicator taxa does provide information on the distribution of VMEs.
The Technical Group thanked New Zealand for conducting the work andagreed it usefully demonstrated that observers can collect significant information on the by-catch of VME taxa and other benthic organisms.
For example, benthic organisms can contribute to the control of invasive species by ingestion or by competing for available resources, thereby reducing the probability that invasive forms will develop.
POPs tend to adsorb to particles and deposit into sediment, andso they are found to be higher in benthic organisms than in pelagic organisms at the same trophic level.
It recognised the important contribution that both CEMP and WG-EMM-STAPP have made to understanding interactions between krill and land-based predators andthat similar concerted efforts might help to clarify the role of fish and benthic organisms.
The Working Group disagreed with this assumption because the actual effects of any of these fishing gears on the benthic organisms encountered are unknown and are likely to require empirical(video) observations.
In contrast CNs contribute significantly to the burden of dioxin-like compounds in Lake Ontario biota, contributing between 12 and 22% of total CN andPCB TEQ in lake trout and up to 69% in benthic organisms Helm et al. 2008.
Several scientific papers and reports have been producedon gray whale behaviour, distribution, benthic organisms that are assumed to be prey of the whales, and Sakhalin gray whale habitat.
Environment Canada's Ecological Screening Assessment Report indicated that the greatest potential risks from PBDEs in the Canadian environment were the secondary poisoning of wildlife,and effects on benthic organisms.
Marine ecosystem investigation was carried out every 10 years,selecting one site to investigate plankton, benthic organisms, marine birds and mammals, protozoa and environmental characteristics.
In order to develop a biological baseline on benthic organisms and to compare results of species identification from disturbed mining and undisturbed reference sites, adequate documentation and well-trained systematists are necessary.
Evidence exists of widespread anoxia in oceanic bottom waters;the rate of carbon burial shot up, and benthic organisms were devastated, especially in the tropics, and especially reef communities.
Table 3-3 provides a PEC(Predicted Environmental Concentration), a CTV(critical toxicity value) and a Predicted No-Effect Concentration(PNEC) based on available empirical data for each class of receptors e.g.,pelagic organisms, benthic organisms.
The Working Group noted the increasing evidence that krill consumption by fish and benthic organisms might exceed that by land-based predators, andrecognised that fish and benthic organisms are important dependent and related species.
The first approach focused on PeCB organic carbon concentrations in sediments from Canadian lakes and showed that in both rural and remote sites,PeCB organic carbon concentrations were 410-75000 times lower than Environment Canada's"estimated no effect value" for freshwater benthic organisms.
The University of Guayaquil, with 45,000 students,has an active natural sciences programme, comprising the study of the bacteria, benthic organisms and phyto and zooplankton along Ecuador's coasts that are influenced by ENSO fluctuations.
The Working Group noted that sampling benthic organisms within a survey area will yield a range of abundances and that conclusions regarding anomalously high densities should include consideration of sampling design, intensity and spatial scale of effort from which the distribution of densities is generated.
Because of the mobility of the overlying waters, in many cases, a small patch of deep seabed will be connected to a much larger areaof the near-surface layers, making benthic organisms potentially vulnerable to extensive human activities in the surface layers.