Population Dynamics Study of Ribbonfish, Lepturacanthus savala from the North-Eastern Tip of Bay of Bengal

K. M. Shahriar Nazrul

Population Dynamics Study of Ribbonfish, Lepturacanthus savala from the North-Eastern Tip of Bay of Bengal

K. M. Shahriar Nazrul * §

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Bangladesh Agricultural University,

Population Dynamics Study of Ribbonfish, Lepturacanthus savala from the North-Eastern Tip of Bay of Bengal

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Abstract

Land-based survey data were collected from two major fish landing centers of southeast Bangladesh. A total of 1,770 Lepturacanthus savala in dividuals were collected for lengthfrequency and length-weight analysis. The asymptotic length (L ∞), growth coefficient ( k ), theoretical age with length at zero (t 0 ) and growth performance index (Ø’) were estimated to be 111 cm, 0.34 year -1 , -0.34 year and 3.622 respectively. Based on the growth parameters total mortality (Z), natural mortality (M) and fishing mortality (F) was found 1.09 year -1 , 0.611 year -1 , and 0.479 year -1 respectively. The exploitation rate (E) using the length converted catch curve was found as 0.43 year -1 which denotes that the studied population is not in over-exploited condition. Recruitment pattern revealed the peak in July. Length-weight relationship of L. savala was established as W = 0.0381 TL 2.1194 where R 2 = 0.8697.

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18 Cites in Article

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Funding

No external funding was declared for this work.

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The authors declare no conflict of interest.

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How to Cite This Article

K. Nazrul. 2018. "Population Dynamics Study of Ribbonfish, Lepturacanthus savala from the North-Eastern Tip of Bay of Bengal". Global Journal of Science Frontier Research, Global Journal of Science Frontier Research - E: Marine Science GJSFR-E Volume 18 (GJSFR Volume 18 Issue E1).

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GJSFR Volume 18 Issue E1

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Journal Specifications

Crossref Journal DOI 10.17406/GJSFR

Print ISSN 0975-5896

e-ISSN 2249-4626

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GJSFR-E Classification FOR Code: 150799

Submission ReceivedApril 28, 2018
Peer Review Double Blind
Handling Editor
Accepted May 18, 2018
Published June 2, 2018

Version of record

v1.2

Issue date

August 6, 2018

Language

English

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Article Matrices

Total Score: 149

Country: Bangladesh

Subject: Global Journal of Science Frontier Research

Authors: K. M. Shahriar Nazrul, Al Mamun, Md Abdullah Al-Mamun, Suman Barua, Md. Sharif Uddin (PhD/Dr. count: 0)

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