Main Article Content

Abstract

The Stinging catfish, Heteropneustes fossilis (Bloch, 1974) is a commercially important fish species in Asia. This study describes some biological aspects of H. fossilis using a total of 250 individuals which were captured during July 2017 to June 2018 by various types of traditional fishing gears and measured biometric data for each individual The recorded results showed that the TL was varied from 10.30 to 20.50 cm and BW was ranged from 4.42 to 50.91 g. All LWRs were significant (p<0.001), with r2 values ≥ 0.952. The calculated allometric coefficient (b) showed positive allometric growth in ombined sexes (b > 3.00). The LLR was significant (p<0.001) with r2 value > 0.988. The a3.0, Lm, and MW were 0.0063, 12.09 cm TL and 1.09 y-1 for H. fossilis in the Gajner Beel, respectively. These findings would be very effective for further stock assessment and management of this fishery in the Gajner Beel wetland and adjoining ecosystems.

Keywords

Length-weight relationship Heteropneustes fossilis Size at first sexual maturity Natural mortality.

Article Details

Author Biographies

Md. Akhtarul ISLAM, Department of Fisheries, Faculty of Agriculture, University of Rajshahi, Rajshahi 6205, Bangladesh.

Department of Fisheries, Faculty of Agriculture, University of Rajshahi, Rajshahi, Bangladesh

Md. Yeamin HOSSAIN, Department of Fisheries, Faculty of Agriculture, University of Rajshahi, Rajshahi 6205, Bangladesh.

Associate professor

Department of Fisheries

University of Rajshahi

Md. Ataur RAHMAN, Department of Fisheries, Faculty of Agriculture, University of Rajshahi, Rajshahi 6205, Bangladesh.

Department of Fisheries, Faculty of Agriculture, University of Rajshahi, Rajshahi, Bangladesh

Obaidur RAHMAN, Department of Fisheries, Faculty of Agriculture, University of Rajshahi, Rajshahi 6205, Bangladesh.

Department of Fisheries, Faculty of Agriculture, University of Rajshahi, Rajshahi, Bangladesh

Most. Shakila SARMIN, Department of Fisheries, Faculty of Agriculture, University of Rajshahi, Rajshahi 6205, Bangladesh.

Department of Fisheries, Faculty of Agriculture, University of Rajshahi, Rajshahi, Bangladesh

Dalia KHATUN, Department of Fisheries, Faculty of Agriculture, University of Rajshahi, Rajshahi 6205, Bangladesh.

Department of Fisheries, Faculty of Agriculture, University of Rajshahi, Rajshahi, Bangladesh

Most. Farida PARVIN, Institute of Environmental Sciences, University of Rajshahi, Rajshahi 6205, Bangladesh.

Department of Fisheries, Faculty of Agriculture, University of Rajshahi, Rajshahi, Bangladesh
How to Cite
ISLAM, M. A., HOSSAIN, M. Y., RAHMAN, M. A., RAHMAN, O., SARMIN, M. S., KHATUN, D., NIMA, A., MAWA, Z., RAHMAN, M. A., TANJIN, S., & PARVIN, M. F. (2021). Some biological aspects of Asian stinging catfish, Heteropneustes fossilis (Bloch, 1794) (Teleostei: Siluriformes) in a wetland ecosystem. Iranian Journal of Ichthyology, 8(1), 52–61. https://doi.org/10.22034/iji.v8i1.336

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