Advances in Zoology and Botany Vol. 12(4), pp. 199 - 207
DOI: 10.13189/azb.2024.120402
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Growth Performance of Ompok pabda (Hamilton, 1822), the Near Threatened Fish Species Reared in Recirculatory Aquaculture System

Priyam Nath ^*
Department of Zoology, Dhakuakhana College, Dhakuakhana, Assam, India

ABSTRACT

The catfish Ompok pabda is a small indigenous freshwater fish commonly found in natural water bodies of Northeast India. Over the past years, the species has undergone significant decline due to over exploitation and hence placed in Near Threatened category by IUCN (version 2021-3). Therefore, need arises for providing proper growth condition for this fish species. For conservation purpose, this fish species was reared in Recirculatory Aquaculture System (RAS) in three individual tanks and its length weight relationships were derived for assessing its growth conditions. RAS technology is based on the principle of rearing fish at high densities, in indoor tanks with a "controlled" environment by filtering and cleaning the water for recycling it back through fish culture tanks. The value of 'b' recorded in the fish species using RAS technology ranged from 2.78 (r²=0.822) to 2.91 (r²=0.90) respectively which was higher than that of the fish species reared in pond ranging from b=2.49 (r²=0.8335) to b=2.61 (r²=0.84). Zero mortality was observed during the entire study. The current study has provided the evidence of improved growth condition and hence improved growth using RAS technology in comparison to pond culture which recorded slow growth rate. Therefore if such a system like RAS can be provided for rearing this fish species without any observed mortality, then this Near Threatened fish species can be easily captivated.

KEYWORDS
Ompok pabda, Recirculatory Aquaculture System

Cite This Paper in IEEE or APA Citation Styles
(a). IEEE Format:
[1] Priyam Nath , "Growth Performance of Ompok pabda (Hamilton, 1822), the Near Threatened Fish Species Reared in Recirculatory Aquaculture System," Advances in Zoology and Botany, Vol. 12, No. 4, pp. 199 - 207, 2024. DOI: 10.13189/azb.2024.120402.

(b). APA Format:
Priyam Nath (2024). Growth Performance of Ompok pabda (Hamilton, 1822), the Near Threatened Fish Species Reared in Recirculatory Aquaculture System. Advances in Zoology and Botany, 12(4), 199 - 207. DOI: 10.13189/azb.2024.120402.