Macrobenthic community response to copper in Shelter Island Yacht Basin, San Diego Bay, California

MARINE POLLUTION BULLETIN

卷:62

Article

Neira, Carlos¹  Mendoza, Guillermo¹  Levin, Lisa A.¹  Zirino, Alberto^1,2  Delgadillo-Hinojosa, Francisco³  Porrachia, Magali⁴  Deheyn, Dimitri D.⁵ 

[1] Univ Calif San Diego, Scripps Inst Oceanog, Integrat Oceanog Div, La Jolla, CA 92093 USA

[2] Univ San Diego, Dept Marine & Environm Sci, San Diego, CA 92110 USA

[3] Univ Autonoma Baja California, Inst Invest Oceanol, Ensenada, Baja California, Mexico

[4] Univ Calif San Diego, Scripps Inst Oceanog, Geosci Res Div, La Jolla, CA 92093 USA

[5] Univ Calif San Diego, Scripps Inst Oceanog, Div Marine Biol Res, La Jolla, CA 92093 USA

关键词: Macrofauna;    Copper pollution;    Sediment;    Community diversity;    Biomass;    California;   

DOI  :  10.1016/j.marpolbul.2011.01.027

来源: Elsevier

【 摘 要 】

We examined Cu contamination effects on macrobenthic communities and Cu concentration in invertebrates within Shelter Island Yacht Basin, San Diego Bay, California. Results indicate that at some sites, Cu in sediment has exceeded a threshold for self defense mechanisms and highlight the potential negative impacts on benthic faunal communities where Cu accumulates and persists in sediments. At sites with elevated Cu levels in sediment, macrobenthic communities were not only less diverse but also their total biomass and body size (individual biomass) were reduced compared to sites with lower Cu. Cu concentration in tissue varied between species and within the same species, reflecting differing abilities to regulate their body load. The spatial complexity of Cu effects in a small marina such as SIYB emphasizes that sediment-quality criteria based solely on laboratory experiments should be used with caution, as they do not necessarily reflect the condition at the community and ecosystem levels. (C) 2011 Elsevier Ltd. All rights reserved.

【 授权许可】

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