Please use this identifier to cite or link to this item: http://hdl.handle.net/1893/20629
Appears in Collections:Aquaculture Journal Articles
Peer Review Status: Refereed
Title: Analysis of the parental contribution to a group of fry from a single day of spawning from a commercial Atlantic cod (Gadus morhua) breeding tank
Authors: Herlin, Marine
Delghandi, Madjid
Wesmajerv, Mette
Taggart, John
McAndrew, Brendan
Penman, David
Contact Email: d.j.penman@stir.ac.uk
Keywords: Atlantic cod
Gadus morhua
DNA microsatellite
Parental analysis
Effective breeding population
Mate choice
Reproductive success
Issue Date: Feb-2008
Publisher: Elsevier
Citation: Herlin M, Delghandi M, Wesmajerv M, Taggart J, McAndrew B & Penman D (2008) Analysis of the parental contribution to a group of fry from a single day of spawning from a commercial Atlantic cod (Gadus morhua) breeding tank, Aquaculture, 274 (2-4), pp. 218-224.
Abstract: The parentage of 300 Atlantic cod (Gadus morhua) fry from eggs collected on a single day in a commercial mass spawning breeding tank was analysed by DNA profiling. Employing eight polymorphic microsatellite DNA markers, exclusion-based parentage analysis unambiguously assigned 81% of fry to a single pair of parents each (or 84.6% of the fry successfully genotyped). Of 99 adult fish present in the broodstock tank, 26 were found to have contributed to the assigned offspring. The spawning pattern was highly skewed. One parental pair contributed to 25% of the sample, while nine parents contributed to 90% of the assigned individuals. Among these highly represented individuals, both multiple paternity and multiple maternity was common. There was no evidence for size assortative mating being a factor in the spawning outcomes, though the dataset was not ideal for such an analysis. The genetic data were backed up by observations of cod mating behaviour, in a breeding tank, using infrared cameras. The video recordings gathered showed the occurrence of ventral mountings and suggested a mechanism for multiple paternity of egg batches.
Type: Journal Article
URI: http://hdl.handle.net/1893/20629
DOI Link: http://dx.doi.org/10.1016/j.aquaculture.2007.11.034
Rights: The publisher does not allow this work to be made publicly available in this Repository. Please use the Request a Copy feature at the foot of the Repository record to request a copy directly from the author. You can only request a copy if you wish to use this work for your own research or private study.
Affiliation: Aquaculture
Fiskeriforskning Institute
Fiskeriforskning Institute
Aquaculture
Aquaculture
Aquaculture

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