منابع مشابه
Spatiotemporal trends of mercury in walleye and largemouth bass from the Laurentian Great Lakes region.
The risk of mercury (Hg) exposure to humans and wildlife from fish consumption has driven extensive mercury analysis throughout the Great Lakes Region since the 1970s. This study compiled fish-Hg data from multiple sources in the region and assessed spatiotemporal trends of Hg concentrations in two representative top predator fish species. Walleye (Sander vitreus) and largemouth bass (Micropter...
متن کاملModelling the effect of acidity on mercury uptake by walleye in acidic and circumneutral lakes.
An association between acidification of lakes and high mercury concentrations in fishes has been reported. In northern Wisconsin (USA), for example, walleye (Stizostedion vitreum) in naturally acidic lakes have higher mercury concentrations than walleye in circumneutral lakes (Weiner, 1983). In this study a bioenergetic based model for mercury uptake is applied to identify potential causes of h...
متن کاملTrends of chlorinated organic contaminants in great lakes trout and walleye from 1970 to 1998.
Levels of chlorinated organic contaminants in predator fish have been monitored annually in each of the Great Lakes since the 1970s. This article updates earlier reports with data from 1991 to 1998 for lake trout (Salvelinus namaycush) and (Lake Erie only) walleye (Sander vitreus) to provide a record that now extends nearly 30 years. Whole fish were analyzed for a number of industrial contamina...
متن کاملFish growth rates modulate mercury concentrations in walleye (Sander vitreus) from eastern Canadian lakes.
The majority of the studies attempting to explain fluctuations of mercury (Hg) concentrations in fish from diverse aquatic ecosystems have invoked the influence of physico-chemical or environmental factors but has eluded that of strictly biological factors. In this study, we examine the relationship between Hg concentrations in walleye (Sander vitreus) muscles and their growth rates in 12 natur...
متن کاملSmall lakes in big landscape: Multi-scale drivers of littoral ecosystem in alpine lakes.
In low nutrient alpine lakes, the littoral zone is the most productive part of the ecosystem, and it is a biodiversity hotspot. It is not entirely clear how the scale and physical heterogeneity of surrounding catchment, its ecological composition, and larger landscape gradients work together to sustain littoral communities. A total of 113 alpine lakes from the central Pyrenees were surveyed to ...
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ژورنال
عنوان ژورنال: Blue Jay
سال: 1983
ISSN: 2562-5667,0006-5099
DOI: 10.29173/bluejay4481