ISSN:
1573-5117
Keywords:
thermoregulation
;
behavior
;
temperature
;
triggerfish
;
Balistes fuscus
;
tropical reef
;
Ichthyotron
Source:
Springer Online Journal Archives 1860-2000
Topics:
Biology
Notes:
Abstract Ten blue triggerfish,Balistes fuscus, were tested individually for 3 days each in Ichthyotron electronic shuttleboxes to measure their thermoregulatory behavior. The modal thermal preferendum, a species-specific measure of temperature preference which is independent of prior thermal acclimation, was 25 °C. The triggerfish voluntarily occupied a 16–27 °C range of temperature, out of a potentially available range of 0–50 °C. There was no significant difference in preferred temperature between night and day, indicating lack of a thermoregulatory rhythm in this species. The preferred temperature range of this tropical marine reef species is similar to that of cool temperate freshwater and marine fishes; many warm temperate species prefer higher temperatures.
Type of Medium:
Electronic Resource
URL:
http://dx.doi.org/10.1007/BF00008274
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