GENETIC VARIABILITY IN DEEP-SEA ORGANISMS

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Abstract
Four species of deep-sea marine invertebrates [Munidopsis hamata, Buccinum sp., Ophioglypha bullata and Ophiomusium lymani] from the vicinity of the Rockall Trough (Shetland-Faroe Channel) [Great Britain], were studied by gel electrophoresis. The degree of genetic polymorphism found seems to indicate an absence of correlation with the particular environmental factors which characterize the sampled area. The results suggest that the adaptive strategies of organisms belonging to different phyla are different.

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