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dc.contributorEnvironmental Research Laboratory (Narragansett, R.I.)-
dc.contributorUnited States. Environmental Protection Agency.-
dc.contributorField Verification Program (Aquatic Disposal)-
dc.contributor.authorNelson, William G.-
dc.contributor.authorPhelps, Donald K.-
dc.contributor.authorGalloway, Walter B.-
dc.contributor.authorRogerson, Peter F.-
dc.contributor.authorPruell, Richard J.-
dc.descriptionTechnical Report-
dc.descriptionAbstract: A study was conducted to investigate residue-effect relationships between tissue residue concentrations and the scope for growth of the blue mussel, Mytilus edulis, after exposure in the laboratory and the field to dredged material from Black Rock Harbor (BRH), Bridgeport, Conn. A second objective included field verification of the laboratory results. A laboratory system was used to provide a constant exposure concentration ranging from 0 to 10 mg/𝓁 of suspended BRH sediment. Residue concentrations in mussels, particularly stable compounds such as polychlorinated biphenyls, were found to be closely related to exposure concentration. Scope for growth, clearance rates, and shell growth measurements were inversely related to BRH exposure and subsequent tissue residues, with concentrations as low as 1.5 mg/𝓁 of BRH material causing negative biological effects. In the field, mussels were placed along a transect from the center of the disposal mound to a clean area distant from the disposal mound. Exposure estimates indicated that the maximum concentration of BRH material occurred during the disposal operation, after which both exposure and tissue residue concentrations decreased dramatically. Of the measurements made at the four field stations during the course of the study, a reduction in the scope for growth of mussels, attributable to BRH material, was observed only once. The estimated concentration of BRH suspended material (0.7 to 0.2 mg/𝓁) during that collection, 8 weeks postdisposal, was very close to the lowest concentration affecting the scope for growth in the laboratory experiments (1.5 mg/𝓁).-
dc.publisherEnvironmental Laboratory (U.S.)-
dc.publisherEngineer Research and Development Center (U.S.)-
dc.rightsApproved for public release; distribution is unlimited.-
dc.sourceThis Digital Resource was created from scans of the Print Resource-
dc.subjectMarine pollution-
dc.subjectAquatic pollution-
dc.subjectBlack Rock Harbor-
dc.subjectDredging spoil-
dc.subjectDredged materials-
dc.subjectWater quality-
dc.subjectBlue mussel-
dc.subjectMytilus edulis-
dc.subjectEnvironmental effects-
dc.titleEffects of Black Rock Harbor dredged material on the scope for growth of the blue mussel 'Mytilus Edulis' after laboratory and field exposures-
Appears in Collections:Technical Report

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