Social Organization, Grouping, and Domestication in Fish

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Abstract
The zebrafish (Danio rerio) is now established as one of the pre-eminent model vertebrate study animals in biology, providing an excellent opportunity to integrate the fields of genetics and behavioral ecology. Considerable attention has been paid to the social organization of animals and the study of zebrafish in this context allows behavioral geneticists to gain an insight into this fundamentally important field. This paper reviews the literature on the social organization of fish, with special reference to the zebrafish. The mechanisms and functions of social behavior in fish and the current understanding of the behavioral genetics of these are discussed. Finally, the impact of domestication on the expression of wild-type behavior patterns in laboratory fish is considered.