Please use this identifier to cite or link to this item: http://hdl.handle.net/1893/9968
Appears in Collections:Aquaculture Journal Articles
Peer Review Status: Refereed
Title: The effect of male colouration on reproductive success in Nile tilapia (Oreochromis niloticus)
Authors: Rajaee, Amy H
Huntingford, Felicity A
Ranson, Keith
McAndrew, Brendan
Penman, David
Contact Email: b.j.mcandrew@stir.ac.uk
Keywords: Reproductive success
Mate choice
Colour
Assortative mating
Nile tilapia
Oreochromis niloticus
Issue Date: 2010
Publisher: Elsevier
Citation: Rajaee AH, Huntingford FA, Ranson K, McAndrew B & Penman D (2010) The effect of male colouration on reproductive success in Nile tilapia (Oreochromis niloticus), Aquaculture, 308 (Supplement 1), pp. S119-S123.
Abstract: Red tilapia stocks have been developed for aquaculture from rare colour mutations. This study was carried out to discover if male body colour (wild type or red) influences mating success in the Nile tilapia (Oreochromis niloticus), by allowing females to choose between wild type and red males under semi-natural spawning conditions. In a series of eight trials, ten females (wild type females in four trials, red in the other four) were placed in an arena tank with two size-matched males, one wild type and one red. Each trial ran for 5 weeks, during which fish were allowed to spawn and eggs were collected from the mouths of the females after spawning. Paternity was assessed using microsatellite genotyping and phenotype scoring. Where both males contributed to a batch of fry from a single female, the batch was allocated to the "primary" sire for statistical analysis. No significant epartures from equal mating success as the primary sire were observed between red and wild type males. However, there was a significant difference between the red and wild type females in the frequency of secondary paternal contribution to egg batches. These results are discussed with reference to spawning of Nile tilapia in natural and aquaculture environments.
Type: Journal Article
URI: http://hdl.handle.net/1893/9968
DOI Link: http://dx.doi.org/10.1016/j.aquaculture.2010.05.039
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: University of Stirling
University of Glasgow
Aquaculture
Aquaculture
Aquaculture

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