The influence of nutrient loading on methylmercury availability in Long Island estuaries.

Environmental Pollution
Celia Y ChenCharles T Driscoll

Abstract

Estuaries provide critical habitat for food webs supporting fish and shellfish consumed by humans, but estuarine ecosystem health has been threatened by increases in nitrogen loading as well as inputs of the neurotoxin, mercury (Hg), which biomagnifies in food webs and poses risk to humans and wildlife. In this study, the effects of nutrient loading on the fate of Hg in shallow coastal estuaries were examined to evaluate if their interaction enhances or reduces Hg bioavailability in sediments, the water column, and concentrations in lower trophic level fish (Fundulus heteroclitus and Menidia menidia). Multiple sites were sampled within two human impacted coastal lagoons, Great South Bay (GSB) and Jamaica Bay (JB), on the southern coast of Long Island, NY, United States of America (U.S.A.). Carbon (C), nitrogen (N), sulfur (S), Hg, and methylmercury (MeHg) were measured in surface sediments and the water column, and total Hg (THg) was measured in two species of forage fish. Minimal differences were found in dissolved and particulate Hg, dissolved organic carbon (DOC), and salinity between the two bays. Across lagoons, concentrations of chlorophyll-a were correlated with total suspended solids (TSS), and water column THg and MeHg...Continue Reading

References

May 3, 2000·Archives of Environmental Contamination and Toxicology·C C Gilmour, G S Riedel
Mar 21, 2002·Proceedings of the National Academy of Sciences of the United States of America·Paul C PickhardtJoel D Blum
Mar 30, 2004·Environmental Science & Technology·Chad R Hammerschmidt, William F Fitzgerald
Jun 22, 2006·Archives of Environmental Contamination and Toxicology·Robert P MasonAuja Sveinsdottir
Feb 16, 2007·Chemical Reviews·William F FitzgeraldChad R Hammerschmidt
Apr 26, 2007·Proceedings of the National Academy of Sciences of the United States of America·Roxanne KarimiCarol L Folt
Aug 19, 2008·Environmental Health Perspectives·Sally Ann LedermanFrederica P Perera
Feb 21, 2009·Science·Daniel J ConleyGene E Likens
Apr 17, 2009·Environmental Science & Technology·Celia Y ChenBrian P Jackson
Sep 1, 2005·Environmental Toxicology and Pharmacology·Farhana ZahirRizwan H Khan
Jan 26, 2012·Environmental Health Perspectives·Margaret R KaragasSusan Korrick
Jul 4, 2012·Environmental Research·Charles T DriscollCarl H Lamborg
Dec 1, 2012·Environmental Science & Technology·Amina T SchartupCelia Y Chen
Mar 16, 2013·Environmental Science & Technology·Chad R HammerschmidtWilliam F Fitzgerald
Sep 13, 2013·Environmental Science & Technology·Cynthia C GilmourDwayne A Elias
Oct 25, 2013·Environmental Science & Technology·Raphael A LavoieLinda M Campbell
Jan 26, 2016·Marine Chemistry·Prentiss H BalcomCelia Y Chen
Oct 4, 2017·Estuaries and Coasts : Journal of the Estuarine Research Federation·Kate BuckmanCelia Chen
Apr 12, 2019·The Science of the Total Environment·K L BuckmanC Y Chen

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Citations

Dec 29, 2020·Environmental Research·Kate L BuckmanCelia Y Chen

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