Lethal temperature of marine fishes of the Gulf of Thailand

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Abstract

Twenty four marine fish species of the Gulf of Thailand were studied. The results suggested that increased acclimation temperature resulted in increased mean avoidance temperature (AT), critical thermal maximum (CTM) and upper incipient lethal temperature (UILT). At the acclimation temperature, which is normally the ambient seawater temperature of the Gulf of Thailand (28° C), the upper incipient lethal temperature ranged from 34° C to 37–5° C. Monocanthus chinensis and Cynoglosus puncticeps had the lowest thermal resistance. Mugil dussumerii, Therapon theraps and Scatophagus argus the highest and the rest in the middle range.

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