Mercury exposed: Advances in environmental analysis and ecotoxicology of a highly toxic metal

Wiener, James G.

doi:10.1002/etc.2333

Cited by 42 publications

(25 citation statements)

References 62 publications

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“…Factors that influence HgII methylation and MeHg bioavailability are important controls in MeHg bioaccumulation in aquatic organisms (Wiener 2010;Li and Cai 2013;Hsu-Kim et al 2013;Paranjape and Hall 2017). We explored water chemistry and physical parameters that are often useful in explaining the variation of MeHg and THg in whole water (such as DOC, pH, total anion concentrations; see Methods section for complete list), and thus Hg in aquatic animals, using PCA (Fig.…”

Section: Differences In Thg In Tadpoles In Different Pondsmentioning

confidence: 99%

Survey of mercury in boreal chorus frog (Pseudacris maculata) and wood frog (Rana sylvatica) tadpoles from wetland ponds in the Prairie Pothole Region of Canada

Boczulak

Vanderwel

Hall

2017

FACETS

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Tadpoles are important prey items for many aquatic organisms and often represent the largest vertebrate biomass in many fishless wetland ecosystems. Neurotoxic mercury (Hg) can, at elevated levels, decrease growth, lower survival, and cause developmental instability in amphibians. We compared total Hg (THg) body burden and concentration in boreal chorus frog (Pseudacris maculata) and wood frog (Rana sylvatica) tadpoles. Overall, body burden and concentration were lower in boreal chorus frog tadpoles than wood frog tadpoles, as expected, because boreal chorus frog tadpoles consume at lower trophic levels. The variables species, stage, and mass explained 21% of total variation for body burden in our models but had negligible predictive ability for THg concentration. The vast majority of the remaining variation in both body burden and THg concentration was attributable to differences among ponds; tadpoles from ponds in three areas had considerably higher THg body burden and concentration. The pond-to-pond differences were not related to any water chemistry or physical parameter measured, and we assumed that differences in wetland geomorphology likely played an important role in determining Hg levels in tadpoles. This is the first report of Hg in frog tadpoles in the Prairie Pothole Region of North America.

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Section: Differences In Thg In Tadpoles In Different Pondsmentioning

confidence: 99%

Survey of mercury in boreal chorus frog (Pseudacris maculata) and wood frog (Rana sylvatica) tadpoles from wetland ponds in the Prairie Pothole Region of Canada

Boczulak

Vanderwel

Hall

2017

FACETS

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“…Birds and bats that feed on invertebrates are also showing high levels of methylmercury. Methylmercury is highly harmful to the reproduction of fish and birds (WIENER, 2013).…”

Section: Ecotoxicologymentioning

confidence: 99%

Mercury: Biogeochemical and Toxicological Aspects and Levels Found in Marine Fish Along the Southern and Southeastern Coasts of Brazil

Rodrigues¹,

Saraiva

Oliveira³

et al. 2015

Boletim do Observatório Ambiental Alberto Ribeiro Lamego

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“…Ртуть и ее соединения являются опасными экологическими токсикантами [1,2]. На формировании уровней содержания ртути в природной среде Арктики существенно сказываются отходы промышленных объектов и трансграничный атмосферный перенос токсиканта [3][4][5][6].…”

Section: Introductionunclassified

Mercury in components of ecosystems of Western Spitsbergen fijord in summer, 2017

Лебедева

Фатеев

Nikulina

et al. 2018

Problemy Arktiki i Antarktiki

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The total content of mercury was studied in marine water, sediments and benthic organisms in Billefjord, Isfjord and Gronfjord (Western Spitsbergen) in 2017. The samples were collected between 21 and 24 of July 2017 on-board RV “Dalnie Zelentsy” of Murmansk Marine Biological Institute. Total mercury content was measured at chemical-analytical laboratory of the Russian Scientific Center on Spitsbergen in Barentsburg.Total mercury concentration in the water did not exceed 10 ng/l in all fjords. In the surface sediments the highest concentrations of total mercury were found in Isfjord (median 55 ng/g d.w.) while the Billefjord sediments were characterised by the lowest concentrations (median 10.4 ng/g d.w.). This fact might reflect the differences in water circulation and therefore sediment accumulation peculiarities.Total mercury data were obtained for benthic organisms of various feeding modes. Generally mercury levels were comparatively low (median 12.2 ng/g w.w.), however the highest concentrations were measured in the benthic fauna of Isfjord, specifically in polychaetes Maldania sarsi (max. 49.2 ng/g w.w.). Mercury accumulation in benthic organisms predominantly depended on their trophic level in the ecosystem and location in the fjord: benthic detritus feeders accumulate more mercury (median 25.0 ng/gw.w.).

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Mercury exposed: Advances in environmental analysis and ecotoxicology of a highly toxic metal

Cited by 42 publications

References 62 publications

Survey of mercury in boreal chorus frog (Pseudacris maculata) and wood frog (Rana sylvatica) tadpoles from wetland ponds in the Prairie Pothole Region of Canada

Survey of mercury in boreal chorus frog (Pseudacris maculata) and wood frog (Rana sylvatica) tadpoles from wetland ponds in the Prairie Pothole Region of Canada

Mercury: Biogeochemical and Toxicological Aspects and Levels Found in Marine Fish Along the Southern and Southeastern Coasts of Brazil

Mercury in components of ecosystems of Western Spitsbergen fijord in summer, 2017

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