Group formation and anemone use in captively reared anemonefish ( Amphiprion frenatus )
Ichthyological Research(2008)
摘要
We studied group formation and anemone use in captively reared anemonefish Amphiprion frenatus . Four small fish (23–32 mm total length) were simultaneously released into a central area of the aquaria (ca. 160 l) that was divided in half with an anemone placed on each half, with the opportunity to settle on either side. Four-day trials were conducted for analyzing settlement patterns. Because of the monogamous mating system, we predicted that small fish should settle in pairs. However, all four small fish settled on the same side in 7 of 14 replicates, which was a higher than expected value under random settlement.
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关键词
expected value,mating system
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