Correlates of mercury in fish from lakes near Clyde Forks, Ontario, Canada

Ethier, A.L.M.; Scheuhammer, Anton M.; Bond, Della E.

doi:10.1016/j.envpol.2008.01.009

Cited by 39 publications

(40 citation statements)

References 40 publications

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“…Ethier et al (unpublished data) found a 0.044 mg g À1 increase in soil THg with every 10% increase in TOC. A comparable increase was found for sediment THg in both the Dorset [13] and Clyde Forks [42], Ontario lakes (data combined), but only at lower (<30%) TOC levels (r 2 ¼ 0.37 …”

Section: Concentration Of Thg In Sedimentsupporting

confidence: 79%

Predicting mercury concentrations and fluxes in the water column and sediment of lakes with a limited dataset

Ethier

Lean

Scheuhammer

et al. 2010

Enviro Toxic and Chemistry

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The purpose of the present study was to evaluate the mercury (Hg) Environmental Ratios Multimedia Ecosystem Sources (HERMES) model on two Ontario, Canada lakes (Harp and Dickie) and to include modifications to enable the model to estimate the major model input variables that tend to be missing for lakes with limited datasets. No significant differences were found for either sediment solid or bulk water total mercury (THg) when the HERMES model was applied to the two Ontario lakes, regardless of whether all available data were altered during application or only the 10 variables that tend to cause the most variation in model output (i.e., concentration of THg in atmosphere, water inflow THg concentration, water inflow rate, water volume, surface area, mean depth, suspended particulate matter concentration, settling rate of solids in water column, water temperature, and precipitation rate). Since measured sediment and water THg values do not exist for most lakes removed from industrial activities, empirical relationships were incorporated into the HERMES model framework to provide a method to double-check model output for lakes where this information is unavailable.

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Section: Concentration Of Thg In Sedimentsupporting

confidence: 79%

Predicting mercury concentrations and fluxes in the water column and sediment of lakes with a limited dataset

Ethier

Lean

Scheuhammer

et al. 2010

Enviro Toxic and Chemistry

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show abstract

“…Senn et al, 2010). Interestingly, most studies have found that animals relying on pelagic carbon sources have higher Hg concentrations than those using littoral or benthic carbon sources (Power et al, 2002;Kidd et al, 2003;Ethier et al, 2008;Stewart et al, 2008). Only Eagles- Smith et al (2008) found the opposite, with higher Hg concentrations in benthic-associated organisms.…”

Section: Use Of Stable Isotopes To Understand Food Web Structurementioning

confidence: 86%

Bioaccumulation and Biomagnification of Mercury through Food Webs

Kidd

Clayden

Jardine

2011

Environmental Chemistry and Toxicology of Mercury

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“…Stable isotope analysis of nitrogen (d 15 N), carbon (d 13 C), and sulfur (d 34 S) was coupled with Hg analysis to evaluate bioaccumulation of Hg in fish tissue [21,22,25] and to investigate possible feeding ecology and fluvial input differences that could alter Hg concentrations of red snapper collected among three sample regions. For stable isotope analysis, approximately 5 mg of dry ground tissue samples were placed in a tin boat with 10 mg of precombusted vanadium pentoxide (V 2 O 5 ).…”

Section: Stable Isotope Analysismentioning

confidence: 99%

“…As a secondary objective, red snapper were collected from oil and gas platforms, along with other habitat types, within each region to establish if association with platforms affects red snapper Hg accumulation in marine environments. Stable isotope analysis of nitrogen (d 15 N), carbon (d 13 C), and sulfur (d 34 S) was coupled with Hg analysis to evaluate the bioaccumulation of Hg in fish tissue [21,22] and to examine if possible differences in feeding ecology, fluvial influences, and habitat use may affect Hg concentrations of red snapper collected from different regions.…”

Section: Introductionmentioning

confidence: 99%