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IJEB Vol.50(08) [August 2012] >


Title: Influence of genetic relatedness and shoal size on shoaling preferences in juvenile Puntius sarana subnasutus (Hamilton Valenciennes)
Authors: Alex, N Jilna
Thomas, K John
Keywords: Juvenile fish
Puntius sarana subnasutus
Shoaling
Social preference
Issue Date: Aug-2012
Publisher: NISCAIR-CSIR, India
Abstract: When presented with stimulus shoals of siblings and conspecifics in equal number, P. sarana subnasutus were able to discriminate their siblings and preferred to associate with them. Given a choice between large shoal and a small shoal consisting of siblings, the juvenile fish preferred to associate with larger stimulus group to the smaller one. However, juveniles traded off their preference for sibling shoal with large non-sibling conspecific stimulus group, regardless of the possible benefits gained from associating with sibling shoals. The results reveal the ability of fish to discriminate their siblings during their early developmental stage and the overriding influence shoal size in the context of shoaling preference in P. sarana subnasutus.
Page(s): 583-586
CC License:  CC Attribution-Noncommercial-No Derivative Works 2.5 India
ISSN: 0975-1009 (Online); 0019-5189 (Print)
Source:IJEB Vol.50(08) [August 2012]

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