Effects of starvation, oscillating temperatures, and photoperiod on the critical thermal maximum of hybrid striped × white bass

John G. Woiwode, Ira R Adelman

Research output: Contribution to journalArticlepeer-review

30 Scopus citations

Abstract

1. 1.|A 1°C increase in constant acclimation temperature over a range of 6.5 to 33.1°C increased the critical thermal maximum (CTM) by 0.47°C for both starved and satiated hybrid bass; however, the CTM of starved fish averaged 0.35°C lower than satiated fish. 2. 2.|If the mean daily temperature was at least 24°C, diel oscillating temperatures of ±4°C amplitude increased the CTM. 3. 3.|With a mean daily temperature of 20°C, oscillating temperatures had no effect on the CTM for satiated fish and the CTM for starved fish was reduced. 4. 4.|Photoperiod had no discernible effect on CTM.

Original languageEnglish (US)
Pages (from-to)271-275
Number of pages5
JournalJournal of Thermal Biology
Volume17
Issue number4-5
DOIs
StatePublished - 1992

Bibliographical note

Funding Information:
Acknowledgements--We thank R. Bendel, P. Bergland, W. Blythe, J. Hiebert, M. Hove, J. Maher, A. Miller, A. Monson, D. O'Shea, M. Palanuk, R. Pierce, and H. Van Offelen for assistance with the experiments and the U.S. Fish and Wildlife Service, Northern States Power Company, and the University of Minnesota Agricultural Experiment Station for financial support.

Keywords

  • CTM
  • Morone chrysops
  • Morone saxatilis
  • Temperature
  • survival

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