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Predator-Induced Changes in Thermoregulation of Bluegill, Lepomis macrochirus , from a Thermally Altered Reservoir
Journal article   Peer reviewed

Predator-Induced Changes in Thermoregulation of Bluegill, Lepomis macrochirus , from a Thermally Altered Reservoir

Robert U. Fischer Jr, Edward A. Standora and James R. Spotila
Canadian journal of fisheries and aquatic sciences, v 44(9), pp 1629-1634
01 Sep 1987

Abstract

In the absence of a predator, small bluegill (Lepomis macrochirus) had a mean upper avoidance temperature of 30.0 °C as compared with 29.8 °C for large bluegill. In the presence of a predator (Micropterus salmoides), bluegill upper avoidance temperatures were significantly higher; however, predator size did not influence this relationship. In the presence of a small and large bass, small bluegill had a mean upper avoidance temperature of 34.0 and 33.9 °C, respectively, while large bluegill had a mean upper avoidance temperature of 33.8 and 33.1 °C. The preferred temperatures of large bluegill [Formula: see text] were statistically higher than that of small bluegill [Formula: see text]. There was no significant difference in the preferred temperatures for bluegill from heated and normothermic sites.

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Collaboration types
Domestic collaboration
Web of Science research areas
Fisheries
Marine & Freshwater Biology
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