Crude oil effects to developmental stages of the American lobster
Citable URI
https://hdl.handle.net/1912/10276DOI
10.1575/1912/10276Keyword
American lobster; Lobsters; Oil spills; PetroleumAbstract
The effects of South Louisiana crude oil on larvae and juveniles of
the American lobster Homarus americanus were investigated in continuous
flow bioassay systems. Response parameters measured included estimates
of the effects of oil exposure on survival, energetics, biochemical composition,
hydrocarbon accumulation and histological aberrations. Disruptions
in the energetics of larva l development were observed with exposure
to oil-seawater mixtures and with ingestion of oil-contaminated
Artemia nauplii; the changes in energetics were correlated with a shift
in the normal patterns of lipid utilization and storage in larval lobsters.
Hydrocarbon turnover appeared to be rapid and little accumulation,
except of the higher molecular weight constituents, was observed.
Recovery of larval and early post-larval stages was not immediate upon
transfer to uncontaminated seawater but the normal pattern of energy
storage and utilization was slowly restored.
Post-larval lobsters were less sensitive to crude oil-seawater mixtures
than the larval stages and no disruption in energetics was observed.
Reductions in respiratory activity and bioaccumulation of
both aliphatic and aromatic compounds, however, were observed in post-larval
lobsters exposed to oil-contaminated sediments. Post-larval
lobsters appeared to have longer retention times and slower turnover
rates of petroleum hydrocarbons than the larval stages and persistence of
petroleum hydrocarbons in sediments might present a chronic contamination
problem to benthic stages of the American lobster .
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Suggested Citation
Technical Report: Capuzzo, Judith M., "Crude oil effects to developmental stages of the American lobster", 1981-09, DOI:10.1575/1912/10276, https://hdl.handle.net/1912/10276Related items
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