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ICES Journal of Marine Science: Journal du Conseil 1996 53(1):89-95; doi:10.1006/jmsc.1996.0008
© 1996 by ICES/CIEM International Council for the Exploration of the Sea/Conseil International pour l'Exploration de la Mer
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Genetic variation between populations of the harp seal, Phoca groenlandica

J. Meisfjord and R. C. Sundt

Department of Fisheries and Marine Biology, Bergen High Technology Center, University of Bergen N–5020 Bergen, Norway
Institute of Marine Research P.O. Box 1870, N–5024 Bergen, Norway

R. C. Sundt: corresponding author.

Liver and muscle tissue collected from harp seals (Phoca groenlandica) in the Newfoundland area were analysed by isoelectric focusing of five known variable enzyme systems. Allele frequencies were compared with corresponding frequencies previously recorded in north-east Atlantic samples. Muscle tissue collected from harp seals in the White Sea area and the Greenland Sea were analysed by DNA-fingerprinting. Samples were compared using band-sharing coefficients. Frequency distributions in AAT-2 and ME-1 were significantly different from those previously found in samples collected in the north-east Atlantic. Accordingly, it seems justified to divide the total stock of harp seals into one eastern and one western component. Highly variable profiles of Pal I digested genomic DNA were revealed using the human minisatellite 33.15 hybridization probe. Intra- and inter-population average band-sharing coefficients were uniformly low (range: 0.111–0.116). DNA-ingerprinting analyses did not reveal evidence for genetic differentiation between White Sea and Greenland Sea harp seals.

Keywords: isozymes, DNA fingerprinting, stock identification, harp seal, Newfoundland, north-east Atlantic

Received 3 November 1994; accepted 5 April 1995.


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