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Influence of plankton mercury dynamics and trophic pathways on mercury concentrations of top predator fish of a mining-impacted reservoir

Dates

Year
2008

Citation

Stewart, ARSAR, 2008, Influence of plankton mercury dynamics and trophic pathways on mercury concentrations of top predator fish of a mining-impacted reservoir: … Journal of Fisheries …, v. 65, iss. 11, p. 2351-2366.

Summary

Physical and biogeochemical characteristics of the aquatic environment that affect growth dynamics of phytoplankton and the zooplankton communities that depend on them may also affect uptake of methylmercury (MeHg) into the pelagic food web of oligotrophic reservoirs. We evaluated changes in the quality and quantity of suspended particulate material, zooplankton taxonomy, and MeHg concentrations coincident with seasonal changes in water storage of a mining-impacted reservoir in northern California, USA. MeHg concentrations in bulk zooplankton increased from 4ng·g-1 at low water to 77± 6.1ng·g-1 at high water and were positively correlated with cladoceran biomass (r = 0.66) and negatively correlated with rotifer biomass (r =-0.65). [...]

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Author :
Stewart, ARSAR

Communities

  • USGS National Research Program

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Added to ScienceBase on Fri Apr 19 10:15:13 MDT 2013 by processing file <b>Mechanisms of biological and ecological response in disturbed aquatic ecosystems (Thompson::Brown:Cain:Carter:Fend:Hornberger:Stewart:Luoma).xml</b> in item <a href="https://www.sciencebase.gov/catalog/item/504216bae4b04b508bfd338f">https://www.sciencebase.gov/catalog/item/504216bae4b04b508bfd338f</a>

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Citation Extension

journal… Journal of Fisheries …
parts
typePages
value2351-2366
typeVolume
value65
typeIssue
value11
citationTypeJournal Article

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