Physiology of Stress Responses in Teleost Fish
Fish, like most other animals, use stress response systems when confronted with negative stimuli. Stress responses are important in the case of natural negative stimuli as they enhance a fish's ability to escape by initiating a fight or flight response. Catch and release fishing heightens physiological stress responses as it prolongs stimulation and steroid secretion. Similar to mammals, exposure to large and sustained amounts of stress—and therefore cortisol release— elicits many negative physiological effects on fish. The process of caching, removing from, and returning fish to their aqueous ...
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