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Spawning frequency of brood dams and sires in a marine fish stock‐enhancement hatchery
Author(s) -
Gold J. R.,
Renshaw M. A.,
Saillant E.,
Vega R. R.
Publication year - 2010
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.1095-8649.2010.02730.x
Subject(s) - biology , hatchery , fishery , broodstock , brood , stock (firearms) , fish stock , fish <actinopterygii> , marine fish , aquaculture , zoology , engineering , mechanical engineering
Parentage analysis, employing five hypervariable microsatellite markers, was used to follow spawning patterns of red drum Sciaenops ocellatus broodfish in two spawning tanks through most of a calendar year in a marine fish hatchery dedicated to stock enhancement. Five of six dams and all four sires spawned at least once during the year. Variation in dam and sire spawning incidence and in number of progeny produced per dam and per sire translated into reduced genetic effective size ( N e ) per spawn by 40·6% in one tank and 50·8% in the other.