Acclimation of <Emphasis Type="Italic">Anabas testudineus</Emphasis> (Bloch) to three test temperatures influences thermal tolerance and oxygen consumption |
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| Authors: | Kamal Sarma A K Pal S Ayyappan T Das S M Manush Dipesh Debnath Kartik Baruah |
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| Institution: | (1) Division of Fisheries Science, Central Agricultural Research Institute, ICAR, Port Blair, 744101, India;(2) Department of Fish Nutrition and Biochemistry, Central Institute of Fisheries Education, Mumbai, 400061, India;(3) Indian Council of Agricultural Research, Krishi Anusandan Bhavan II, New Delhi, 110001, India;(4) Laboratory of Aquaculture and Artemia Reference Centre, Department of Animal Production, Ghent University, 9000 Ghent, Belgium; |
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| Abstract: | Teleost fish have developed their own specific adaptive mechanism, both behavioral and physiological, to maintain homeostasis
in response to unfavorable temperatures. Therefore, this study was aimed at assessing the critical thermal maxima (CTMax), critical thermal minima (CTMin), and oxygen consumption rate of Anabas testudineus (17.03 ± 1.2 g) after acclimating to three preset temperatures (25, 30, and 35°C) for 30 days. The CTMax and CTMin were 40.15, 41.40, 41.88°C and 12.43, 13.06, 13.94°C, respectively, and were significantly different (P < 0.05). The thermal tolerance polygon for the specified temperatures was 278.30°C2. The oxygen consumption rate (117.03, 125.70, 198.48 mg O2 kg−1 h−1, respectively) increased significantly (P < 0.05) with increasing acclimation temperatures. The overall results indicate that the thermal tolerance and oxygen consumption
of A. testudineus are dependent on acclimation. |
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