Abstract:Nine of 41 identifiable females of dark chub, Zacco temmincki, in a river cannibalized eggs of other females. There was no significant difference in body size, condition factor or the location of home range between cannibals and noncannibals. In laboratory experiments, one male and two females were introduced into an aquarium to observe the behaviour of individual females while a pair spawned. The response of 16 females to spawning was observed and 15 of 16 females exhibited egg cannibalism. The percentages of… Show more
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