Respiratory metabolism of crabs from marine and estuarine habitats. I.Scylla serrata

✍ Scribed by K. M. Veerannan

• Book ID: 104742598
• Publisher: Springer-Verlag
• Year: 1972
• Tongue: English
• Weight: 720 KB
• Volume: 17
• Category: Article
• ISSN: 0025-3162
• DOI: 10.1007/bf00366738

✦ Synopsis

I~early 500 crabs, Scylla serrata (Forskal) (family Bortunidue), ranging in wet weight from 0.2 to 14.0 g, were acclimated to 27 ~ and 35 ~ and their respiratory metabolism under water and on exposure to air at test temperatures ranging from i6 ~ to 38 ~ was studied. In aquatic respiration, the response to temperature of crabs acclimated to a temperature of t6~ is statistically significant, and directly related to their weight. Smaller crabs did not survive at the warm acclimation level of 35 ~ The metabolic rates of cold-adapted S. serrata are higher than those of warm-adapted ones. The effect of acclimation to aerial respiration on crabs acclimated to cold temperature varied slightly between large and small crabs. The aerial respiration rate was less than a tenth of the aquatic rate for all sizes. The response of S. serrata to warm acclimation in air has been found to be almost opposite ~ its response in water.