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Effects of exposure to sublethal concentrations of crude oil on the copepodCentropages hamatus

✍ Scribed by T. J. Cowles

Publisher
Springer-Verlag
Year
1983
Tongue
English
Weight
496 KB
Volume
78
Category
Article
ISSN
0025-3162

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✦ Synopsis

Female copepods of the species Centropages hamatus exposed to 80-ppb South Louisiana crude oil in seawater show alterations in their swimming activity, as expressed by the duration of pause intervals during swimming, mean swimming speed, and allocation of time to active food search. Behavioral patterns of oil-exposed copepods returned to patterns shown by control individuals after only 30 rain of depuration in uncontaminated seawater. The results indicate that sublethal concentrations of hydrocarbons interfere with mechanisms of food perception in copepods, as in decapod Crustacea, either via blockage of receptors or via narcotization of the copepod's nervous system.

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