globalchange  > 过去全球变化的重建
DOI: 10.1016/j.marpolbul.2014.07.009
Scopus记录号: 2-s2.0-84922608414
论文题名:
Dietary mercury exposure to endangered California Clapper Rails in San Francisco Bay
作者: Casazza M.L.; Ricca M.A.; Overton C.T.; Takekawa J.Y.; Merritt A.M.; Ackerman J.T.
刊名: Marine Pollution Bulletin
ISSN: 0025-326X
EISSN: 1879-3363
出版年: 2014
卷: 86, 期:2018-01-02
起始页码: 254
结束页码: 260
语种: 英语
英文关键词: Endangered species ; Hg ; Invertebrate ; Tidal marsh
Scopus关键词: Conservation ; Mercury (metal) ; Nutrition ; Wetlands ; Endangered species ; Hg concentrations ; Invertebrate ; Macroinvertebrates ; Mercury concentrations ; San Francisco Bay ; San Francisco Bay , California ; Tidal marshes ; Chemical contamination ; mercury ; mercury ; pollutant ; Article ; bay ; California clapper rail ; concentration (parameters) ; diet ; endangered species ; exposure ; macroinvertebrate ; marsh ; nonhuman ; reproductive toxicity ; sculpin ; snail ; taxon ; United States ; water bird ; animal ; bird ; blood ; chemistry ; environmental exposure ; environmental monitoring ; fish ; invertebrate ; metabolism ; pollutant ; procedures ; statistics and numerical data ; wetland ; Alismataceae ; Aves ; Ilyanassa ; Invertebrata ; Leptocottus armatus ; Rallus longirostris ; Rallus longirostris obsoletus ; Animals ; Bays ; Birds ; Endangered Species ; Environmental Exposure ; Environmental Monitoring ; Environmental Pollutants ; Fishes ; Invertebrates ; Mercury ; San Francisco ; Wetlands
Scopus学科分类: Agricultural and Biological Sciences: Aquatic Science ; Earth and Planetary Sciences: Oceanography ; Environmental Science: Pollution
英文摘要: California Clapper Rails (Rallus longirostris obsoletus) are an endangered waterbird that forage in tidal-marsh habitats that pose risks from mercury exposure. We analyzed total mercury (Hg) in six macro-invertebrate and one fish species representing Clapper Rail diets from four tidal-marshes in San Francisco Bay, California. Mercury concentrations among individual taxa ranged from lowest at Colma Creek (mean range: 0.09-0.2. μg/g dw) to highest at Cogswell (0.2-0.7), Laumeister (0.2-0.9) and Arrowhead Marshes (0.3-1.9). These spatial patterns for Hg matched patterns reported previously in Clapper Rail blood from the same four marshes. Over 25% of eastern mudsnails (Ilyanassa obsolete) and staghorn sculpin (Leptocottus armatus) exceeded dietary Hg concentrations (ww) often associated with avian reproductive impairment. Our results indicate that Hg concentrations vary considerably among tidal-marshes and diet taxa, and Hg concentrations of prey may provide an appropriate proxy for relative exposure risk for Clapper Rails. © 2014 Published by Elsevier Ltd.
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资源类型: 期刊论文
标识符: http://119.78.100.158/handle/2HF3EXSE/85811
Appears in Collections:过去全球变化的重建
全球变化的国际研究计划

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作者单位: U.S. Geological Survey, Western Ecological Research Center, Dixon Field Station, 800 Business Park Drive, Suite D, Dixon, CA, United States; U.S. Geological Survey, Western Ecological Research Center, San Francisco Bay Estuary Field Station, 505 Azuar Drive, Vallejo, CA, United States

Recommended Citation:
Casazza M.L.,Ricca M.A.,Overton C.T.,et al. Dietary mercury exposure to endangered California Clapper Rails in San Francisco Bay[J]. Marine Pollution Bulletin,2014-01-01,86(2018-01-02)
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