The Preferred Temperatures of the Brown Bullhead, Ictalurus nebulosus, with Reference to its Orientation to the Discharge Canal of a Nuclear Power Plant
- 1 March 1978
- journal article
- research article
- Published by Oxford University Press (OUP) in Transactions of the American Fisheries Society
- Vol. 107 (2) , 288-294
- https://doi.org/10.1577/1548-8659(1978)107<288:tptotb>2.0.co;2
Abstract
Brown bullheads acclimated to temperatures between 3.5 and 28.degree. C and tested in a thermal gradient trough usually preferred water temperatures above their respective acclimation temperatures. Fish tended to gravitate toward higher temperatures the longer they remained in the gradient; final preferendum was 27.3 C. Laboratory results were consistent with observed movements of Connecticut River [USA] brown bullheads into the thermal discharge canal of a power plant during autumn. A temperature trap keeps bullheads in the warm discharge canal during winter but they leave the canal in spring sooner than would be predicted from temperature preference data alone.Keywords
This publication has 2 references indexed in Scilit:
- Responses of Mosquitofish (Gambusia affinis) to Ash Effluent and Thermal StressTransactions of the American Fisheries Society, 1976
- Distributional Ecology and Behavioral Thermoregulation of Fishes in Relation to Heated Effluent from a Power Plant at Lake Monona, WisconsinTransactions of the American Fisheries Society, 1974