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Proceedings of the International Academy of Ecology and Environmental Sciences, 2024, 14(4): 129-158
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Article

Behavioral, physiological and biochemical analysis of Centropristis striata (sea bass) grown under pseudo marine conditions

N. Gandhi and Ch. Vijaya
Department of Marine Biology, Vikrama Simhapuri University, Nellore, Andhara Pradesh, India

Received 1 June 2024;Accepted 8 July 2024;Published online 31 July 2024;Published 1 December 2024
IAEES

Abstract
The growth, behavior, and survival of Centropristis striata (sea bass) are essential factors in aquaculture. This study evaluated these aspects under controlled conditions, using young shrimps, small tilapia fish, and biofloc as food sources. Two experimental conditions were tested: T1 (small shrimps + biofloc) and T2 (tilapia + biofloc). Each tank housed 30 fish, with three replications per treatment. Feeding rates were 20%, 15%, and 10% of body weight in the first, second, and third months, respectively. The initial average lengths and weights were 65.1 ± 1.62 mm and 8.52 ± 1.81 g for T1 and 69.20 ± 0.36 mm and 10.75 ± 0.14 g for T2. The final mean length and weight gains were 0.088 ± 0.5 mm and 3.3 ± 0.12 g for T1 and 0.094 ± 1.2 mm and 3.7 ± 0.08 g for T2. Individual weight gains were 156.49 ± 4.09 g for T1 and 182.19 ± 1.29 g for T2. No significant change in survival rates was observed, with both treatments achieving over 95% survival. Behavioral responses, including swimming activity index (SAI), swimming velocity (SV), latency, voracity, and satiety, along with growth responses such as weight gain, length gain, condition factor, feed efficiency, growth rate, relative growth rate, specific growth rate (SGR), daily growth coefficient, linear growth coefficient, thermal growth coefficient, survival rate, biomass index, feed conversion ratio (FCR), body protein deposition (BPD), protein efficiency ratio, protein intake, total feed intake per fish, net fish yield, and biochemical responses (hepato somatic index, intra peritoneal fat, viscera somatic index, kidney index) were assessed. The mean growth rate, SGR, and relative growth rate were significantly higher in T2 compared to T1 (p>0.05). FCR values were 0.59 ± 0.14 for T1 and 0.63 ± 0.18 for T2. Total production per tank averaged 1599.52 g for T1 and 1878.19 g for T2. Water quality parameters remained within suitable ranges throughout the experiment. This study demonstrates that tank-based intensive aquaculture is a viable method for C. striata production, optimizing space, water, and land use. The results indicate no significant variation in behavioral, physiological, or biochemical responses of C. striata under pseudo marine conditions with synthetic water, supporting the efficiency and potential of this culture system.

Keywords Pseudo marine conditions;Behavioral, physiological and biochemical analysis;formulated feed;Centropristis striata (sea bass)..

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