Mussel bed restoration and monitoring

Babcock, Malin M.; Harris, Patricia M.; Carls, Mark G.; Broderson, Christine C.; Rice, Stanley D. (Stanley Donald)

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Mussel bed restoration and monitoring

1998
By Babcock, Malin M. ; Harris, Patricia M. ; Carls, Mark G. ; ...

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Alternative Title:

Exxon Valdez oil spill restoration project final report
Personal Author:

Babcock, Malin M. ; Harris, Patricia M. ; Carls, Mark G. ; Broderson, Christine C. ; Rice, Stanley D. (Stanley Donald)

Babcock, Malin M. ; Harris, Patricia M. ; Carls, Mark G. ; Broderson, Christine C. ; Rice, Stanley D. (Stanley Donald) Less -
Corporate Authors:

Auke Bay Laboratory (Juneau, Alaska)
NOAA Program & Office:

NMFS (National Marine Fisheries Service)
Description:

Many mussel beds in the spill area, particularly those on soft sediment, were not cleaned immediately after the Exxon Valdez oil spill in 1989. Consequently these beds had high concentrations of contaminated sediments and tissues. Surveys documented the geographic extent (primarily Prince William Sound and the Kenai Peninsula) and intensity of oiling. Hydrocarbon concentrations declined naturally from 1992-1995 in some. but not all beds. Distribution of oil in sediments was related to tidal elevation, depth, and grain size. Oil concentration in mussels correlated with that in sediment. Mussel condition was adversely affected by oil; prevalence of digestive gland metaplasia, brown cells, and hemocytic infiltrates ingonads increased, and storage cell abundance decreased. However, some physiological responses (byssal thread production, condition index, feeding rate. or glycogen content) in mussels contaminated 3-4 years were not correlated with oil concentration. Bed restoration caused immediate reductions in oil concentration in surface sediment, but these sediments were later partially recontaminated by remaining oil. Restoration efficacy was less evident in mussels: Concentration reductions were significant in less than half the beds by the end of study. Mussel densities declined in one-half of the beds alter restoration, hut density declines were similar in untreated reference beds.
Content Notes:

Malin M. Babcock, Patricia M. Harris, Mark G. Carls, Christine C. Broderson, Stanley D. Rice.

Title from cover.

"Restoration project 95090, final report."

"December 1998."

Available also in electronic format on the Internet.

Includes bibliographical references.
Keywords:

[+]

Effect Of Oil Spills On Environmental Aspects Exxon Valdez Oil Spill, Alaska, 1989 Habitat Marine Sediments Monitoring Mussels Oil Spills Restoration Monitoring (Ecology)
Document Type:

Miscellaneous
Place as Subject:

Alaska ; Prince William Sound

Alaska ; Prince William Sound Less -
Rights Information:

Public Domain
Compliance:

Library
Main Document Checksum:

[+]

urn:sha256:6ebcd8e8a5ca2696e8cd2e61b8319e6e2e71176853e822549dd54e591ca2cf16
Download URL:

https://repository.library.noaa.gov/view/noaa/3228/noaa_3228_DS1.pdf
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Mussel bed restoration and monitoring

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