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Toxicity of dietary methylmercury to fish: derivation of ecologically meaningful threshold concentrations.
Threshold concentrations associated with adverse effects of dietary exposure to methylmercury (MeHg) were derived from published results of laboratory studies on a variety of fish species. AdverseExpand
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Nearshoreoffshore comparison of chlorophyll a and phytoplankton production in the dreissenid-colonized eastern basin of Lake Erie
Planktonic primary production, chlorophyll a (chl a), underwater light climate, and total phosphorus were measured at 18 stations during 2001 and 2002 in eastern Lake Erie to characterize spatial a...
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Derivation of screening benchmarks for dietary methylmercury exposure for the common loon (Gavia immer): rationale for use in ecological risk assessment.
The current understanding of methylmercury (MeHg) toxicity to avian species has improved considerably in recent years and indicates that exposure to environmentally relevant concentrations of MeHgExpand
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Modelling mercury concentrations in prey fish: derivation of a national-scale common indicator of dietary mercury exposure for piscivorous fish and wildlife.
The National Descriptive Model for Mercury in Fish (NDMMF) was applied to a Canada - wide dataset of fish mercury (Hg) concentrations to derive a common indicator of dietary methylmercury (MeHg)Expand
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Submerged aquatic vegetation in Cook's Bay, Lake Simcoe: Assessment of changes in response to increased water transparency
Abstract A high frequency echo sounding method was employed to assess the extent of SAV cover and depth of colonization in Cook's Bay, Lake Simcoe during the late summer of 2006 and 2007. ResultsExpand
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Nested 3D modeling of the spatial dynamics of nutrients and phytoplankton in a Lake Ontario nearshore zone
Abstract Algal fouling has become a serious problem along Great Lakes' coastlines and difficult to diagnose due to spatial and hydrodynamic variability typical of nearshore zones. We applied aExpand
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Spatiotemporal Patterns of Water Quality in Lake Ontario and Their Implications for Nuisance Growth of Cladophora
ABSTRACT This study, motivated by a resurgence in Cladophora, investigates changes in the nutrient environment in the littoral zone of Lake Ontario. We measured nutrient concentrations from 2004 toExpand
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Distribution of nuisance Cladophora in the lower Great Lakes: patterns with land use, near shore water quality and dreissenid abundance.
Selected shorelines and offshore shoals in Lakes Erie, Huron and Ontario were surveyed with a high frequency hydroacoustic system to investigate current spatial patterns of nuisance benthicExpand
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Effects of water movement on the distribution of invasive dreissenid mussels in Lake Simcoe, Ontario
Abstract The effects of invasive organisms on an aquatic ecosystem will depend, in part, on the distribution and biomass of the invasive organisms in the system. Here we present the results of aExpand
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Nearshore–offshore differences in planktonic chlorophyll and phytoplankton nutrient status after dreissenid establishment in a large shallow lake
Abstract In Lake Simcoe, a large lake in southern Ontario, Canada, with more than 50% of its surface area <15 m deep, dreissenid mussels are abundant in the extensive nearshore zone but not offshore.Expand
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