Accumulation by fish of contaminants released from dredged sediments

Environmental Science & Technology
By: , and 



Inasmuch as the process of dredging and disposing of dredged materials causes a resuspension of these materials and an increase in bioavailability of associated contaminants, we conducted a series of experiments to examine the potential accumulation by fish of contaminants from suspended sediments. In the first experiment we compared accumulation of contaminants by yellow perch of hatchery and lake origin and found that after 10 days of exposure to nonaerated sediments, fish of hatchery origin accumulated PCBs and Fe, while fish of lake origin accumulated As, Cr, Fe, and Na. Two additional exposures were conducted to evaluate the effects of aerating the sediments prior to measuring bioavailability of associated contaminants. Fish of hatchery origin exposed to nonaerated sediments for 10 days accumulated PCBs and Hg, while fish of hatchery origin exposed to aerated sediments for 10 days accumulated PCBs, DDE, Zn, Fe, Cs, and Se. These results demonstrated not only the potential for uptake of contaminants by fish as a result of dredging but also the potential utility of fish bioassays in evaluating proposed dredging operations.
Publication type Article
Publication Subtype Journal Article
Title Accumulation by fish of contaminants released from dredged sediments
Series title Environmental Science & Technology
DOI 10.1021/es00102a006
Volume 16
Issue 8
Year Published 1982
Language English
Publisher ACS Publications
Publisher location Washington, D.C.
Contributing office(s) Great Lakes Science Center
Description p. 459-464
Larger Work Type Article
Larger Work Subtype Journal Article
Larger Work Title Environmental Science and Technology
First page 459
Last page 464
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