Behavioral thermoregulation in three Hawaiian reef fishes |
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| Authors: | Patricia A. Medvick John M. Miller |
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| Affiliation: | (1) Hawaii Institute of Marine Biology, University of Hawaii, Honolulu, Hawaii 96822, USA;(2) Present address: Department of Biology, Montana State University, Bozeman, Montana 59717, USA;(3) Present address: Zoology Department, North Carolina State University, P.O. Box 5577, Raleigh, North Carolina 57650, USA |
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| Abstract: | Synopsis The preferred temperature of three Hawaiian coral-reef fishes — Acanthurus triostegus sandvicensis, Abudefduf abdominalis, and Chaetodon multicinctus — were determined in two-chambered tanks that permitted the fish to regulate behaviorally tank temperature. Median selected temperatures over 72 h were as follows: adult C. multicinctus, 24.0° C; juvenile C. multicinctus, 27.0° C; adult Ab. abdominalis, 25.9° C; juvenile Ab. abdominalis, 30.2° C; adult Ac. triostegus, 29.2° C; juvenile Ac. triostegus, 29.3° C. Juvenile Ab. abdominalis selected significantly higher median temperatures than the adults. C. multicinctus and juvenile Ab. abdominalis selected higher median temperatures during the day than at night.Based on the senior author's dissertation submitted to the Graduate School of the University of Hawaii in partial fulfillment of the requirements for the degree of Doctor of Philosophy in Oceanography.Contribution No. 555 from the Hawaii Institute of Marine Biology, University of Hawaii, Honolulu, Hawaii. |
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| Keywords: | Chaetodontid Pomacentrid Acanthurid Preferred temperature Tropical Marine Thermal effluent |
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