Premium
Temperature Preference and Avoidance by Adult Razorback Suckers
Author(s) -
Bulkley R. V.,
Pimentel R.
Publication year - 1983
Publication title -
transactions of the american fisheries society
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.696
H-Index - 86
eISSN - 1548-8659
pISSN - 0002-8487
DOI - 10.1577/1548-8659(1983)112<601:tpaaba>2.0.co;2
Subject(s) - sucker , acclimatization , drainage basin , ecology , biology , habitat , structural basin , environmental science , hydrology (agriculture) , zoology , geography , geology , paleontology , cartography , geotechnical engineering
Final thermal preferendum for the razorback sucker Xyrauchen texanus, a rare endemic species of the Colorado River basin, was estimated to lie between 22.9 and 24.8 C based on electronic‐shuttlebox studies. Estimates of upper and lower avoidance temperature ranged from 27.4 to 31.6 C and from 8.0 to 14.7 C, respectively. Lower, but not upper, avoidance temperature was positively correlated with acclimation temperature. Results indicated that new water‐control structures on the upper Colorado River drainage should be designed to provide summer water temperatures between 22 and 25 C if preservation of habitat for this species is a consideration. Received November 12, 1982 Accepted June 5, 1983