Article,

Isolation and aggression in Siamese fighting fish (Betta splendens)

, and .
Psychological Reports, 34 (3, Pt. 2): 1323--1326 (June 1974)

Abstract

Tested the hypothesis that animals show an increased tendency toward aggression as deprivation of fighting is extended. 60 male Siamese fighting fish were observed to determine aggressive display strength to a mirror image following 15 min or 6, 24, or 72 hrs of visual isolation. Results indicate shorter attack latencies and progressive increments for total time of gill-cover erections as the length of the isolation period was increased.

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