Effects of Tributyltin Antifouling Paint Leachates on Pearl Harbor Organisms. Site-Specific Flowthrough Bioassay Tests.

Site-specific bioassay studies were performed to evaluate the effects of tributyltin (TBT) antifouling paint leachates on complex communities of organisms. Test communities were maintained in flowthrough seawater tanks at Ford Island, Pearl Harbor, Hawaii, and were composed of about 30 common foulin...

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Bibliographic Details
Main Author: Henderson,R S
Other Authors: NAVAL OCEAN SYSTEMS CENTER SAN DIEGO CA
Format: Text
Language:English
Published: 1985
Subjects:
Toxicology
Biological Oceanography
*TOXICITY
*ANTIFOULING COATINGS
*TIN COMPOUNDS
*LEACHING
COMMUNITIES
LIQUIDS
PANELS
ORGANOMETALLIC COMPOUNDS
GLASS
SURFACES
FOULING
TIN
TANKS(CONTAINERS)
POLLUTANTS
PAINTS
AQUATIC ORGANISMS
SEA WATER
HARBORS
HAWAII
WORMS
ALGAE
MICROORGANISMS
SWIMMING
BIOASSAY
BUTANES
SHRIMP
SUBLETHAL DOSAGE
PEARL HARBOR
CRABS
OYSTERS
Tributyltin
WUDN888749
PE63724N
PE63721N
Ford Island
Online Access:http://www.dtic.mil/docs/citations/ADA172985
http://oai.dtic.mil/oai/oai?&verb=getRecord&metadataPrefix=html&identifier=ADA172985
Description
Summary:Site-specific bioassay studies were performed to evaluate the effects of tributyltin (TBT) antifouling paint leachates on complex communities of organisms. Test communities were maintained in flowthrough seawater tanks at Ford Island, Pearl Harbor, Hawaii, and were composed of about 30 common fouling invertebrates (attached to panels and tank surfaces), American oysters, swimming crabs, glass shrimp, and feather-duster worms. Organisms were exposed to five treatment levels ranging form 0.04- to 2.5-micrograms/L TBT. Organisms that exhibited no visible stress responses to all levels of TBT were swimming crabs, glass shrimp, the anemone Haliplanella luciae, and all genera of algae encountered in the tanks. The American oyster (Crassostrea virginica) experienced sublethal effects (reduced condition index) from organotin leachates at 0.1-micrograms/L TBT and high morality at 2.5 micrograms/L. Substantial declined in numbers of species and lowered species diversity were observed on fouling panels and surfaces exposed to 0.5 micrograms/L TBT. No significant effects were noted at 0.04 micrograms/L. Tolerance of some species of nuisance foulers, such as tube worms and solitary tunicates, to moderate-to-high concentrations of TBT suggests that areas affected by significant amounts of organotins should be closely monitored for possible shifts in dominance of specific organisms. Keywords: Benthic organisms, harbor pollutants.

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