The Influence of Hypoxia on the Preferred Temperature of Rainbow Trout Oncorhynchus Mykiss
1991 ◽
Vol 157
(1)
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pp. 75-86
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Keyword(s):
The behavioural thermoregulation of rainbow trout Oncorhynchus mykiss was investigated in a shuttlebox at normoxia and at three levels of hypoxia: 13.3, 9.3 and 5.3 kPa. The final preferred temperatures at normoxia, and at 13.3, 9.3 and 5.3 kPa, were 16.1, 14.9, 15.0 and 12.7°C, respectively. A decreased rate of metabolism and an increased blood oxygen-affinity are among the physiological advantages of selecting a lower temperature during hypoxia. It is suggested that catecholamines may play a part in controlling temperature selection during hypoxia. In natural environments, this behaviour may result in habitat shifts of fish living in heterothermal environments with changing oxygen tensions.
1987 ◽
Vol 157
(5)
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pp. 667-675
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Keyword(s):
2004 ◽
Vol 77
(4)
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pp. 611-618
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2001 ◽
Vol 32
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pp. 70-75
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Keyword(s):
2016 ◽
Vol 18
(10)
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pp. 927-933
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1974 ◽
Vol 33
(3)
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pp. 261-267
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