Abstract
Electrophoresis was used to survey a number of enzymes for loci of potential value as stock markers in Chlamys opercularis (L.). Two loci, Pgi and Pgd, were then studied in larger samples from each of two localities around the Isle of Man. One Pgi allele was found to be restricted to a particular year-class in both populations. This was confirmed by subsequent studies of three further populations, in each of which the same allele occurred only in the one year-class. Otherwise, no significant differences in allele frequencies were found between year-classes or between populations in any of the samples used. From the results it is concluded that there is temporal variation in the sources of recruitment of C. opercularis stocks around the Isle of Man. Possible origins of larvae contributing to these stocks are discussed in the light of what is known of current circulation patterns in the northern Irish Sea.
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Communicated by J. Mauchline, Oban
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Macleod, J.A.A., Thorpe, J.P. & Duggan, N.A. A biochemical genetic study of population structure in queen scallop (Chlamys opercularis) stocks in the Northern Irish Sea. Marine Biology 87, 77–82 (1985). https://doi.org/10.1007/BF00397008
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DOI: https://doi.org/10.1007/BF00397008