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Genetic variation and stock structure of school mackerel and spotted mackerel in northern Australian waters

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Begg, G.A., Keenan, C.P. and Sellin, M. J. (1998) Genetic variation and stock structure of school mackerel and spotted mackerel in northern Australian waters. Journal of Fish Biology, 53 (3). pp. 543-559. ISSN 0022-1112

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Article Link: https://doi.org/10.1111/j.1095-8649.1998.tb01000.x

Abstract

The total mean sample heterozygosity calculated from eight polymorphic loci was 0·172 (0·047 S.E.) (Fst 0·025) for school mackerel Scomberomorus queenslandicus, and for spotted mackerel S. munroi was 0·110 (0·074 S.E.) (Fst 0·038). There was no evidence of temporal variation for either species as significant genetic differences were not detected between months or year classes within areas. Spatially, school mackerel have a complex stock structure, with stocks being associated with large embayments. In contrast, spotted mackerel appear to comprise a single stock in Australian east coast waters. Both species showed a significant pattern of stock structure between Australian east coast and northern (Arafura Sea) samples.

Item Type:Article
Subjects:Science > Biology > Genetics
Aquaculture and Fisheries > Fisheries > Fishery research
Live Archive:15 Mar 2024 05:37
Last Modified:15 Mar 2024 05:37

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