Summary
Allozymic variation in proteins encoded by 15 loci was analyzed electrophoretically in 166 individuals of the subtropical acorn barnacleBalanus amphitrite from 3 sites varying in pollution levels, situated within 3 km of one another in the Mediterranean Haifa Bay. The 3 sites respectively were a relatively unpolluted marine bay, a petroleum polluted port, and a petrochemically polluted dockyard. Out of the 15 loci tested, 10 exhibited in both 1974 and 1975 statistically significant repetitive trends in allele frequencies in accord with the 3 sites. It is hypothesized that natural selection presumably favours specific alleles in each site, and that in barnacles different allozymic variants function optimally in different polluted environment.
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Acknowledgment. This research was supported by a grant from the United States-Israel Binational Science Foundation (BSF) Jerusalem, Israel.
We thank the Israel Oceanographic and Limnological Research Laboratories, Haifa, for chemical analysis, Dr M. Haber for statistical assistance, S. Karlin, A.H.D. Brown, E. Golenberg, C. Alkalay and Ch. Bar-El for commenting on the manuscript.
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Nevo, E., Shimony, T. & Libni, M. Pollution selection of allozyme polymorphisms in barnacles. Experientia 34, 1562–1564 (1978). https://doi.org/10.1007/BF02034674
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DOI: https://doi.org/10.1007/BF02034674