Biological traits of Glossogobius giuris (Hamilton, 1822) in a wetland ecosystem (Northwestern Bangladesh): Implications for sustainable fisheries management

Authors

  • Md Sumon Hossain Department of Fisheries, University of Rajshahi, Rajshahi 6205, Bangladesh
  • Sadia Islam Department of Fishing and Post-Harvest Technology, Chattogram Veterinary and Animal Sciences University, Chattogram 4225, Bangladesh
  • Shakil Ahmed Department of Fisheries Management, Bangladesh Agricultural University, Mymensingh 2202, Bangladesh
  • Tariq Al Kasif Department of Fisheries, Jamalpur Science and Technology University, Jamalpur 2012, Bangladesh
  • Md Mehedi Hasan College of Ecology and Environment, Nanjing Forestry University, Nanjing 210037, Jiangsu Province, China
  • Md Shadiqur Rahman Department of Fisheries, Jamalpur Science and Technology University, Jamalpur 2012, Bangladesh
  • Md Fakhrul Islam Department of Fisheries, Jamalpur Science and Technology University, Jamalpur 2012, Bangladesh; State Key Laboratory of Breeding Biotechnology and Sustainable Aquaculture, Institute of Hydrobiology, Chinese Academy of Sciences, Wuhan 430072, Hubei, PR China; and University of Chinese Academy of Sciences, Beijing 100049, PR China

DOI:

https://doi.org/10.3329/ralf.v13i1.89769

Keywords:

Condition factor, Form factor, Growth pattern, Population structure, Sustainable fisheries

Abstract

The freshwater goby, Glossogobius giuris, is abundant in freshwater ecosystems across Bangladesh. The current investigation focuses on the population structure, growth pattern, and biological traits of G. giuris (Hamilton, 1822) in the Beel Kumari wetland habitat in Northwestern Bangladesh. A total of 542 specimens were collected during various trips in 2023 (excluding June to August, the breeding season) using gill nets. Biometric analyses were carried out to evaluate the length frequency distributions, LWR, and LLRs. Also, allometric condition factors (KA), Fulton’s condition factor (KF), and relative condition index  (KR) were examined. The growth of G. giuris was established as negatively allometric (b= 2.87), and their condition factors indicated a reasonably well-fed, healthy population (KA = 0.0119 ± 0.001, KF = 0.9597 ± 0.110; KR =1.0162 ± 0:113). The form factor (a3.0 = 0.0078) indicated that this species had adapted to the wetland environment. Total length and standard length had a significant linear relation (p<0.0001). The minimum size at sexual maturity (Lm) of 5.4 cm is the lowest value reported worldwide and could be a consequence of ecological disturbance. WR ranged from 73.504 to 148.87, indicating favorable growing circumstances with particular seasonal variations. These findings establish a solid baseline for the health and growth patterns of G. giuris in Beel Kumari and also highlight the increasing ecological pressure on wetland biodiversity and tropical fisheries in the area. Therefore, there is an immediate necessity for highly effective conservation strategies to prevent further decline and potential extinction of fish species in this ecosystem.

Res. Agric. Livest. Fish. Vol. 13, No. 1, April 2026: 233-249

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Published

2026-05-10

How to Cite

Md Sumon Hossain, Sadia Islam, Shakil Ahmed, Tariq Al Kasif, Md Mehedi Hasan, Md Shadiqur Rahman, & Md Fakhrul Islam. (2026). Biological traits of Glossogobius giuris (Hamilton, 1822) in a wetland ecosystem (Northwestern Bangladesh): Implications for sustainable fisheries management. Research in Agriculture Livestock and Fisheries, 13(1), 233–249. https://doi.org/10.3329/ralf.v13i1.89769

Issue

Vol. 13 No. 1 (2026)

Section

Fisheries

License

Copyright (c) 2026 Md Sumon Hossain, Sadia Islam, Shakil Ahmed, Tariq Al Kasif, Md Mehedi Hasan, Md Shadiqur Rahman, Md Fakhrul Islam

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This work is licensed under a Creative Commons Attribution 4.0 International License.

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