Species diversity and distribution of mud crab in Marudu Bay mangrove forest reserve, Sabah, Malaysia

Sabah has extensive mangrove forests surrounded by oceanic waters which provide suitable habitat for many species of animals including mud crabs (Scylla spp.). This study was conducted to obtain information on the species composition, distribution and catch per unit effort in Marudu Bay, Sabah. Samp...

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Main Authors: Nurul Ain Mohd Sharif, Noor Amalia Shaiful Kahar, Muhammad Ali Syed Hussein, Julian Ransangan, Annita Seok Kian Yong
Format: Article
Language:English
English
Published: Penerbit UMS 2019
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Online Access:https://eprints.ums.edu.my/id/eprint/35589/2/ABSTRACT.pdf
https://eprints.ums.edu.my/id/eprint/35589/1/FULLTEXT.3.pdf
https://eprints.ums.edu.my/id/eprint/35589/
https://doi.org/10.51200/bjomsa.v3i1.1709
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Institution: Universiti Malaysia Sabah
Language: English
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spelling my.ums.eprints.355892023-06-19T07:29:55Z https://eprints.ums.edu.my/id/eprint/35589/ Species diversity and distribution of mud crab in Marudu Bay mangrove forest reserve, Sabah, Malaysia Nurul Ain Mohd Sharif Noor Amalia Shaiful Kahar Muhammad Ali Syed Hussein Julian Ransangan Annita Seok Kian Yong QL1-991 Zoology Sabah has extensive mangrove forests surrounded by oceanic waters which provide suitable habitat for many species of animals including mud crabs (Scylla spp.). This study was conducted to obtain information on the species composition, distribution and catch per unit effort in Marudu Bay, Sabah. Samplings were done monthly in five mangrove areas along the river channels in Marudu Bay (06°33’N; 114°44’E) from October 2012 to September 2013 using collapsible baited crab traps. From a total of 1859 mud crab specimens caught in Marudu Bay, three species were identified. Scylla tranquebarica was the dominant species forming 78% of the total followed by S. paramamosain 13% and S. olivacea 8%. The number of males (n=1224) was higher compared to females (n=635) with an average sex ratio male : female of 1.0:0.5. The catch per unit effort (CPUE) showed an average value of 0.55 trap-1 day-1 and revealed a declining trend throughout the sampling. S. tranquebarica was widely distributed in all the rivers surveyed, however, it mostly occurred in near the lower reaches of the river near the areas open to the sea where average water salinity ranged from 12.98 to 14.28 ppt and the environment favoured the growth of Rhizophora sp. Other species, S. paramamosain and S. olivacea, were mostly found in upstream areas covered generally by Nypa sp. and where average water salinity varied from 6.93 to 7.50 ppt. The information on the species composition, distribution and CPUE of the mud crabs in Marudu Bay can be useful for mud crab fisheries resources management in Sabah. Penerbit UMS 2019-07-31 Article NonPeerReviewed text en https://eprints.ums.edu.my/id/eprint/35589/2/ABSTRACT.pdf text en https://eprints.ums.edu.my/id/eprint/35589/1/FULLTEXT.3.pdf Nurul Ain Mohd Sharif and Noor Amalia Shaiful Kahar and Muhammad Ali Syed Hussein and Julian Ransangan and Annita Seok Kian Yong (2019) Species diversity and distribution of mud crab in Marudu Bay mangrove forest reserve, Sabah, Malaysia. Borneo Journal of Marine Science and Aquaculture, 3 (1). pp. 18-24. https://doi.org/10.51200/bjomsa.v3i1.1709
institution Universiti Malaysia Sabah
building UMS Library
collection Institutional Repository
continent Asia
country Malaysia
content_provider Universiti Malaysia Sabah
content_source UMS Institutional Repository
url_provider http://eprints.ums.edu.my/
language English
English
topic QL1-991 Zoology
spellingShingle QL1-991 Zoology
Nurul Ain Mohd Sharif
Noor Amalia Shaiful Kahar
Muhammad Ali Syed Hussein
Julian Ransangan
Annita Seok Kian Yong
Species diversity and distribution of mud crab in Marudu Bay mangrove forest reserve, Sabah, Malaysia
description Sabah has extensive mangrove forests surrounded by oceanic waters which provide suitable habitat for many species of animals including mud crabs (Scylla spp.). This study was conducted to obtain information on the species composition, distribution and catch per unit effort in Marudu Bay, Sabah. Samplings were done monthly in five mangrove areas along the river channels in Marudu Bay (06°33’N; 114°44’E) from October 2012 to September 2013 using collapsible baited crab traps. From a total of 1859 mud crab specimens caught in Marudu Bay, three species were identified. Scylla tranquebarica was the dominant species forming 78% of the total followed by S. paramamosain 13% and S. olivacea 8%. The number of males (n=1224) was higher compared to females (n=635) with an average sex ratio male : female of 1.0:0.5. The catch per unit effort (CPUE) showed an average value of 0.55 trap-1 day-1 and revealed a declining trend throughout the sampling. S. tranquebarica was widely distributed in all the rivers surveyed, however, it mostly occurred in near the lower reaches of the river near the areas open to the sea where average water salinity ranged from 12.98 to 14.28 ppt and the environment favoured the growth of Rhizophora sp. Other species, S. paramamosain and S. olivacea, were mostly found in upstream areas covered generally by Nypa sp. and where average water salinity varied from 6.93 to 7.50 ppt. The information on the species composition, distribution and CPUE of the mud crabs in Marudu Bay can be useful for mud crab fisheries resources management in Sabah.
format Article
author Nurul Ain Mohd Sharif
Noor Amalia Shaiful Kahar
Muhammad Ali Syed Hussein
Julian Ransangan
Annita Seok Kian Yong
author_facet Nurul Ain Mohd Sharif
Noor Amalia Shaiful Kahar
Muhammad Ali Syed Hussein
Julian Ransangan
Annita Seok Kian Yong
author_sort Nurul Ain Mohd Sharif
title Species diversity and distribution of mud crab in Marudu Bay mangrove forest reserve, Sabah, Malaysia
title_short Species diversity and distribution of mud crab in Marudu Bay mangrove forest reserve, Sabah, Malaysia
title_full Species diversity and distribution of mud crab in Marudu Bay mangrove forest reserve, Sabah, Malaysia
title_fullStr Species diversity and distribution of mud crab in Marudu Bay mangrove forest reserve, Sabah, Malaysia
title_full_unstemmed Species diversity and distribution of mud crab in Marudu Bay mangrove forest reserve, Sabah, Malaysia
title_sort species diversity and distribution of mud crab in marudu bay mangrove forest reserve, sabah, malaysia
publisher Penerbit UMS
publishDate 2019
url https://eprints.ums.edu.my/id/eprint/35589/2/ABSTRACT.pdf
https://eprints.ums.edu.my/id/eprint/35589/1/FULLTEXT.3.pdf
https://eprints.ums.edu.my/id/eprint/35589/
https://doi.org/10.51200/bjomsa.v3i1.1709
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