2025, Vol. 5, Issue 2, Part C
Morphological characterization of the swim bladder in selected freshwater fishes from Pune, India
Author(s): Dhanashree Satish Karhale and Kalim M Shaikh
Abstract: Swim bladders play a critical role in buoyancy regulation, energy efficiency, and ecological adaptation in freshwater fishes. This study examines the morphometric characteristics of swim bladders in seven commercially significant freshwater fish species: Labeo rohita, Channa punctatus, Wallago attu, Catla catla, Oreochromis niloticus, Pangasius sutchi, and Colossoma macropomum, collected from local markets in Pune district, Morphometric parameters, including length, weight, shape, and type, were recorded and compared. Results revealed species-specific differences in swim bladder morphology, with Wallago attu exhibiting the smallest (3 cm) heart-shaped physostomous bladder and Pangasius sutchi the largest (21 cm) oval Physostomous bladder. The observed variations suggest adaptive significance related to habitat, feeding behavior, and ecological niche. Findings have implications for aquaculture, fisheries management, and ecological monitoring.
DOI: 10.22271/letters.2025.v5.i2c.158
Pages: 225-229 | Views: 155 | Downloads: 88
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How to cite this article:
Dhanashree Satish Karhale, Kalim M Shaikh. Morphological characterization of the swim bladder in selected freshwater fishes from Pune, India. Zool Entomol Lett 2025;5(2):225-229. DOI: 10.22271/letters.2025.v5.i2c.158
