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Title: A Test of the Function of Juvenile Color Patterns in the Pomacentrid Fish Hypsypops rubicundus (Teleostei: Pomacentridae)
Authors: Neal, Thomas J.
Issue Date: Jul-1993
Publisher: University of Hawaii Press
Citation: Neal TJ. 1993. A test of the function of juvenile color Patterns in the pomacentrid fish Hypsypops rubicundus (Teleostei: Pomacentridae). Pac Sci 47(3): 240-247.
Abstract: Color patterns of juveniles of many fish species differ from those
of adult conspecifics. The adaptiveness of such coloration has seldom been
studied, despite longstanding interest in the subject. I tested the hypothesis
that distinctive juvenile coloration masks species identity, thereby reducing
aggression from adults and permitting young fish to occupy areas within adult
territories. I measured the responses of adult, territorial garibaldi (Hypsypops
rubicundus [Girard]) to naturally colored juveniles and to juveniles altered to
resemble adults or heterospecifics when presented live in clear, plastic bags filled
with seawater. Preliminary results showed that adults attacked normally colored
juveniles more than any other color pattern presented, indicating that juvenile
coloration in H. rubicundus does not inherently reduce adult aggression. I discuss
the merits and testability of alternative hypotheses for ontogenetic color change
in damselfishes.
ISSN: 0030-8870
Appears in Collections:Pacific Science Volume 47, Number 3, 1993

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