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)