publication . Article . 2016

A study into parental assignment of the communal spawning protogynous hermaphrodite, giant grouper (Epinephelus lanceolatus)

David Bright; Adam Reynolds; Nguyen H. Nguyen; Richard Knuckey; Wayne Knibb; Abigail Elizur;
  • Published: 01 Mar 2016 Journal: Aquaculture, volume 459, pages 19-25 (issn: 0044-8486, Copyright policy)
  • Publisher: Elsevier BV
Parental contributions of giant grouper to communal spawns in captivity is important for establishing genetic management of the species. In this study, we have followed the spawning dynamics of three males and three females over six to eight consecutive days, over three time periods. Polymorphic microsatellite markers were validated and utilised to successfully determine parentage in 574 offspring from 20 nights of spawns. Variation of both maternal and paternal contributions between nights in batches of spawns were significant (P < 0.001). Most paternal assignments were attributed to one dominant male who initiated each spawning batch, however, all males and fe...
Medical Subject Headings: urogenital systemreproductive and urinary physiologyfungi
free text keywords: Grouper, biology.organism_classification, biology, Hermaphrodite, Spawn (biology), Offspring, Genetic variation, Captivity, Genetic monitoring, Fishery, Epinephelus
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