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Distribution of heavy metals and foraminiferal assemblages in sediments of Biscayne Bay, Florida, USA

Journal of Coastal Research

By:
, , , , and
DOI: 10.2112/06-0666.1

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Abstract

Heavy-metal pollution is an issue of concern in estuaries influenced by agriculture, urban, and harbor activities. Foraminiferal assemblages have been shown to be effective indicators of pollution. Sediment samples (n = 110) from Biscayne Bay were analyzed for heavy metals, foraminiferal assemblages, and grain-size distribution. Highest Cu, Zn, Cr, Hg, Pb, and Ni concentrations were found closest to Miami and near the mouths of several canals along the western margin of the bay. Few samples exceeded limits of possible biological effects as defined by previous studies. Ammonia and Cribroelphidium, two known stress-tolerant genera, correlated positively with Cu, Zn, Hg, and Ni (r ??? 0.43). Symbiont-bearing foraminifers, Archaias, Laevipeneroplis, and Androsina, correlated negatively with Cu, Zn, Hg, and Ni (r ??? -0.26).

Additional Publication Details

Publication type:
Article
Publication Subtype:
Journal Article
Title:
Distribution of heavy metals and foraminiferal assemblages in sediments of Biscayne Bay, Florida, USA
Series title:
Journal of Coastal Research
DOI:
10.2112/06-0666.1
Volume
24
Issue:
1
Year Published:
2008
Language:
English
Larger Work Type:
Article
Larger Work Subtype:
Journal Article
Larger Work Title:
Journal of Coastal Research
First page:
159
Last page:
169