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Cod, Gadus morhua L., populations identified by mitochondrial DNA
Author(s) -
Dahle G.
Publication year - 1991
Publication title -
journal of fish biology
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.672
H-Index - 115
eISSN - 1095-8649
pISSN - 0022-1112
DOI - 10.1111/j.1095-8649.1991.tb03115.x
Subject(s) - gadus , biology , mitochondrial dna , divergence (linguistics) , atlantic cod , arctic , gadidae , genetic divergence , zoology , fishery , isozyme , restriction enzyme , ecology , dna , genetics , gene , genetic diversity , fish <actinopterygii> , enzyme , biochemistry , population , linguistics , philosophy , demography , sociology
Isozyme and haemoglobin analysis has shown that the cod, Gadus morhua L., in the NE Atlantic can be regarded as two populations: Arctic and coastal cod. One hundred and one individual cod from nine different locations were sampled and restriction fragment analysis uncovered 14 different mtDNA clones. Calculation of sequence divergence between localities displayed large divergence between samples from coastal and Arctic areas (l.77–5.62%), as opposed to the low intrapopulation divergence (∼0.10%) and the divergence between localities along the coast (∼0.17%) and in the Barents Sea (∼ 1.00%).