Population dynamics of Labeo calhasu (Hamilton) in the Sylhet basin, Bangladesh


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Authors

  • M Alam Bangladesh Fisheries Research Institute, Riverine Station, Chandpur-3602, Bangladesh
  • S M N Amin Bangladesh Fisheries Research Institute, Riverine Station, Chandpur-3602, Bangladesh
  • A K Yousuf Haroon Bangladesh Fisheries Research Institute, Riverine Station, Chandpur-3602, Bangladesh

Abstract

Population parameters of Labeo calbasu (Hamilton) were estimated using FiSAT
software with length-frequency data collected from different areas of Sylhet basin,
north-eastern part of Bangladesh. The von Bertalanffy growth parameters L°° and
K for the species were 49.30 cm and 0.63 / year respectively. The annual rate of
natural (M) and fishing (F) mortality were found to be 1.11 and 3.48, respectively.
The rate of exploitation (E) was estimated as 0.76. Recruitmet of this species
into the fishery takes place during August to October with peak during August-
September. E^j^ was found to be 0.449. The present investigation clearly showed
the over fishing (E>0.50) condition for L. calbasu in the Sylhet basin. The
relationship between the total length and body weight was found to be W +
0.00927*TL 3.109.

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Author Biographies

  • M Alam, Bangladesh Fisheries Research Institute, Riverine Station, Chandpur-3602, Bangladesh
    Bangladesh Fisheries Research Institute, Riverine Station,
    Chandpur-3602, Bangladesh
  • S M N Amin, Bangladesh Fisheries Research Institute, Riverine Station, Chandpur-3602, Bangladesh
    Bangladesh Fisheries Research Institute, Riverine Station,
    Chandpur-3602, Bangladesh
  • A K Yousuf Haroon, Bangladesh Fisheries Research Institute, Riverine Station, Chandpur-3602, Bangladesh
    Bangladesh Fisheries Research Institute, Riverine Station,
    Chandpur-3602, Bangladesh

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Issue

Vol. 47 No. 1 (2000)

Section

Articles

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How to Cite

Alam, M., Amin, S. M. N., & Haroon, A. K. Y. (2011). Population dynamics of Labeo calhasu (Hamilton) in the Sylhet basin, Bangladesh. Indian Journal of Fisheries, 47(1), 1-6. https://epubs.icar.org.in/index.php/IJF/article/view/8558