Behavioural thermoregulation and critical thermal limits of Macrobrachium acanthurus (Wiegman) |
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| Institution: | 1. College of Marine Science, University of South Florida, Saint Petersburg, FL 33701, USA;2. Department of Biological Science, Eastern Illinois University, Charleston, IL 61920, USA |
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| Abstract: | - (1)The preferred temperatures of Macrobrachium acanthurus were determined for prawns acclimated to 20°C, 23°C, 26°C, 29°C and 32°C, and the final preferendum estimate was (29.5°C).
- (2)The critical thermal minima (CTMin) and maxima (CTMax) were 11.0°C, 12.1°C, 13.0°C and 14.8°C, and 34.2°C, 35.0°C, 36.1°C and 39.8°C, respectively.
- (3)The zone of thermal tolerance assessed using the CTMin and CTMax boundaries was 644°C2.
- (4)The acclimation response ratio was between 0.33 and 0.62.
- (5)To cultivate this species in the southeastern region of México it should be done in not <15°C (CTMin) during the winter and below 38°C in summer (CTMax).
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