Biological aspects of the critically endangered fish, Labeo boga in the Ganges River, Northwestern Bangladesh

The present study reports the first complete and inclusive description of some biological parameters including length-frequency distribution (LFD), sex ratio (SR), length-weight relationship (LWR), condition factors (allometric, KA; Fulton’s, KF; relative, KR and relative weight, WR) and form factor...

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Main Authors:	Md. Yeamin Hossain, Sharmin Jahan, Md. Abu Sayed Jewel, Md. Mosaddequr Rahman, Mst. Monira Khatun, Saleha Jasmine
Format:	Article
Language:	English
Published:	Universiti Kebangsaan Malaysia 2015
Online Access:	http://journalarticle.ukm.my/8231/ http://journalarticle.ukm.my/8231/ http://journalarticle.ukm.my/8231/1/05_Md._Yeamin.pdf

id	ukm-8231
recordtype	eprints
spelling	ukm-82312016-12-14T06:46:37Z http://journalarticle.ukm.my/8231/ Biological aspects of the critically endangered fish, Labeo boga in the Ganges River, Northwestern Bangladesh Md. Yeamin Hossain, Sharmin Jahan, Md. Abu Sayed Jewel, Md. Mosaddequr Rahman, Mst. Monira Khatun, Saleha Jasmine, The present study reports the first complete and inclusive description of some biological parameters including length-frequency distribution (LFD), sex ratio (SR), length-weight relationship (LWR), condition factors (allometric, KA; Fulton’s, KF; relative, KR and relative weight, WR) and form factor (a3.0) of Labeo boga in the Ganges River, northwestern Bangladesh. Sampling was conducted using traditional fishing gears during April 2011 to March 2012. For each specimen, total length (TL) was measured to the nearest 0.01 cm using digital slide calipers and total body weight (BW) was measured using an electronic balance with 0.01 g accuracy. The LWR was calculated using the expression: W= a Lb, where W is the BW and L is the TL. A total of 211 specimens ranging from 9.78-27.50 cm TL and 10.00 to 276.10 g BW were studied. BW of females was significantly higher than that of males (Mann-Whitney U-test, p>0.001). However the overall sex ratio did not differ significantly from the expected value of 1:1 (χ2 = 0.12, p<0.05). The calculated b for the LWR indicated isometric growth (» 3.00) in males, females and combined gender and there were significant differences in the intercepts but not in the slopes between the sexes of L. boga in the Ganges River. KF of females was significantly higher than that for males (p<0.001). In addition, the Wilcoxon signed rank test showed that the WR did not differ from 100 for males and females in this study indicating good condition of habitat for L. boga. The results of this study would be an effective tool for fishery specialists to initiate early management strategies and regulations for the sustainable management of the remaining stocks of this species within the Padma River and surrounding ecosystems. Universiti Kebangsaan Malaysia 2015-01 Article PeerReviewed application/pdf en http://journalarticle.ukm.my/8231/1/05_Md._Yeamin.pdf Md. Yeamin Hossain, and Sharmin Jahan, and Md. Abu Sayed Jewel, and Md. Mosaddequr Rahman, and Mst. Monira Khatun, and Saleha Jasmine, (2015) Biological aspects of the critically endangered fish, Labeo boga in the Ganges River, Northwestern Bangladesh. Sains Malaysiana, 44 (1). pp. 31-40. ISSN 0126-6039 http://www.ukm.my/jsm/
repository_type	Digital Repository
institution_category	Local University
institution	Universiti Kebangasaan Malaysia
building	UKM Institutional Repository
collection	Online Access
language	English
description	The present study reports the first complete and inclusive description of some biological parameters including length-frequency distribution (LFD), sex ratio (SR), length-weight relationship (LWR), condition factors (allometric, KA; Fulton’s, KF; relative, KR and relative weight, WR) and form factor (a3.0) of Labeo boga in the Ganges River, northwestern Bangladesh. Sampling was conducted using traditional fishing gears during April 2011 to March 2012. For each specimen, total length (TL) was measured to the nearest 0.01 cm using digital slide calipers and total body weight (BW) was measured using an electronic balance with 0.01 g accuracy. The LWR was calculated using the expression: W= a Lb, where W is the BW and L is the TL. A total of 211 specimens ranging from 9.78-27.50 cm TL and 10.00 to 276.10 g BW were studied. BW of females was significantly higher than that of males (Mann-Whitney U-test, p>0.001). However the overall sex ratio did not differ significantly from the expected value of 1:1 (χ2 = 0.12, p<0.05). The calculated b for the LWR indicated isometric growth (» 3.00) in males, females and combined gender and there were significant differences in the intercepts but not in the slopes between the sexes of L. boga in the Ganges River. KF of females was significantly higher than that for males (p<0.001). In addition, the Wilcoxon signed rank test showed that the WR did not differ from 100 for males and females in this study indicating good condition of habitat for L. boga. The results of this study would be an effective tool for fishery specialists to initiate early management strategies and regulations for the sustainable management of the remaining stocks of this species within the Padma River and surrounding ecosystems.
format	Article
author	Md. Yeamin Hossain, Sharmin Jahan, Md. Abu Sayed Jewel, Md. Mosaddequr Rahman, Mst. Monira Khatun, Saleha Jasmine,
spellingShingle	Md. Yeamin Hossain, Sharmin Jahan, Md. Abu Sayed Jewel, Md. Mosaddequr Rahman, Mst. Monira Khatun, Saleha Jasmine, Biological aspects of the critically endangered fish, Labeo boga in the Ganges River, Northwestern Bangladesh
author_facet	Md. Yeamin Hossain, Sharmin Jahan, Md. Abu Sayed Jewel, Md. Mosaddequr Rahman, Mst. Monira Khatun, Saleha Jasmine,
author_sort	Md. Yeamin Hossain,
title	Biological aspects of the critically endangered fish, Labeo boga in the Ganges River, Northwestern Bangladesh
title_short	Biological aspects of the critically endangered fish, Labeo boga in the Ganges River, Northwestern Bangladesh
title_full	Biological aspects of the critically endangered fish, Labeo boga in the Ganges River, Northwestern Bangladesh
title_fullStr	Biological aspects of the critically endangered fish, Labeo boga in the Ganges River, Northwestern Bangladesh
title_full_unstemmed	Biological aspects of the critically endangered fish, Labeo boga in the Ganges River, Northwestern Bangladesh
title_sort	biological aspects of the critically endangered fish, labeo boga in the ganges river, northwestern bangladesh
publisher	Universiti Kebangsaan Malaysia
publishDate	2015
url	http://journalarticle.ukm.my/8231/ http://journalarticle.ukm.my/8231/ http://journalarticle.ukm.my/8231/1/05_Md._Yeamin.pdf
first_indexed	2023-09-18T19:51:50Z
last_indexed	2023-09-18T19:51:50Z
_version_	1777406270820581376

Biological aspects of the critically endangered fish, Labeo boga in the Ganges River, Northwestern Bangladesh

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