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The assumption that the acute response to stress is adaptive is pervasive in the literature, but there is little direct evidence regarding potential positive fitness consequences of an acute stress response. If acute glucocorticoid (GC) elevation increases lifetime reproductive success (fitness), in what contexts does this occur, and through what combination of effects on annual reproductive output...
A positive conditioning approach was used, where a dewatering stressor was associated with feeding, to help moderate the severity of the response of juvenile chinook salmon, Oncorhynchus tshawytscha, to transportation. Not only did this procedure attenuate the physiological response to transportation stress, as evidenced by more rapid recovery of plasma cortisol, glucose and lactate concentrations...
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