Genetic variation at isozyme loci in blue whiting from the north‐east Atlantic

• Published in: Journal of Fish Biology
• Main Authors: Mork, J., Giæver, M.
• Format: Article in Journal/Newspaper
• Language: English
• Published: Wiley 1995
• Subjects: North East Atlantic
• Online Access: http://dx.doi.org/10.1111/j.1095-8649.1995.tb05987.x; https://api.wiley.com/onlinelibrary/tdm/v1/articles/10.1111%2Fj.1095-8649.1995.tb05987.x; https://onlinelibrary.wiley.com/doi/pdf/10.1111/j.1095-8649.1995.tb05987.x

Genetic variation in blue whiting Micromesistius poutassou was investigated by starch gel electrophoresis of enzymes in tissue extracts. A total of 130 specimens from the spawning areas west of the British Isles were collected from trawl catches in 1990 ( n = 30) and 1992 ( n = 100). In 25 tissue enzyme loci screened for genetic variants in the 1990 sample, polymorphisms (0.95 criterion) were found at IDDH‐2 *, IDHP‐2 * and PGM‐1 *, giving a frequency of polymorphic loci of P 0.95 = 0.12. In pooled samples the average heterozygosity per locus was estimated at H e =0.043 and the effective number of alleles per locus at 2.20, 1.45 and 1.53, respectively, for IDDH‐2 *, IDHP‐2 * and PGM‐1 *.