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Macrobenthic community response to copper in Shelter Island Yacht Basin, San Diego Bay, California
Neira, C.; Mendoza, G.A.; Levin, L.A.; Zirino, A.R.; Delgadillo-Hinojosa, F.; Porrachia, M.; Deheyn, D.D. (2011). Macrobenthic community response to copper in Shelter Island Yacht Basin, San Diego Bay, California. Mar. Pollut. Bull. 62(4): 701-717. dx.doi.org/10.1016/j.marpolbul.2011.01.027
In: Marine Pollution Bulletin. Macmillan: London. ISSN 0025-326X; e-ISSN 1879-3363
Peer reviewed article  
Available in  Authors 
Keyword
    Marine/Coastal
Author keywords
    Macrofauna; Copper pollution; Sediment; Community diversity; Biomass; California
Authors  Top 
  • Neira, C.
  • Mendoza, G.A.
  • Levin, L.A.
  • Zirino, A.R.
  • Delgadillo-Hinojosa, F.
  • Porrachia, M.
  • Deheyn, D.D.
Abstract
    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.
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