Length-weight relationship, condition factor, and age estimation of commercially important trawl species from Mersing coastal waters, Johor, Malaysia

Trawl fishing contributes to majority of the total fishes’ landings, supporting the choice of using age, growth determination, and condition factors (K) as part of the monitoring method for the fishes in Malaysia waters. This research specifically examines the use of age, length-weight relations...

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Main Authors: Simon Kumar Das, Tou, Wee Xiang, Noorashikin Md Noor, Moumita De, Abdullah Samat
Format: Article
Language:English
Published: Penerbit Universiti Kebangsaan Malaysia 2021
Online Access:http://journalarticle.ukm.my/16386/
http://journalarticle.ukm.my/16386/1/1.pdf
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author Simon Kumar Das,
Tou, Wee Xiang
Noorashikin Md Noor,
Moumita De,
Abdullah Samat,
author_facet Simon Kumar Das,
Tou, Wee Xiang
Noorashikin Md Noor,
Moumita De,
Abdullah Samat,
author_sort Simon Kumar Das,
building UKM Institutional Repository
collection Online Access
description Trawl fishing contributes to majority of the total fishes’ landings, supporting the choice of using age, growth determination, and condition factors (K) as part of the monitoring method for the fishes in Malaysia waters. This research specifically examines the use of age, length-weight relationship (LWR), and K to monitor the status of the commercially important fishes in Malaysia waters. LWR, K, and age of 10 commercially important trawl species (Gerres erythrourus, Drepane punctata, Otolithes ruber, Anodontostoma chacunda, Drepane longimana, Dendrophysa russelii, Sillago parvisquamis, Cynoglossus bilineatus, Sardinella brachysoma, and Alepes kleinii) from Mersing coastal waters, Johor, Malaysia, were studied. LWR (W=aLb ) indicated positive allometric growth (b > 3) for G. erythrourus and D. punctata but negative allometric growth (b < 3) for the other species. Results indicated that the species collected were in good conditions (average K, Kn > 1) in Mersing coastal waters, Johor, Malaysia. The daily growth rings of scale counts confirmed that the ages of the 10 species were typically less than 1 year (age range: 50-170 days; mean age: 95 days). The data obtained from this study will be useful for understanding the population growth pattern, age, and well�being of commercially important trawl species, which will facilitate better management techniques of these important fishery resources.
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spelling oai:generic.eprints.org:163862021-04-13T02:49:12Z http://journalarticle.ukm.my/16386/ Length-weight relationship, condition factor, and age estimation of commercially important trawl species from Mersing coastal waters, Johor, Malaysia Simon Kumar Das, Tou, Wee Xiang Noorashikin Md Noor, Moumita De, Abdullah Samat, Trawl fishing contributes to majority of the total fishes’ landings, supporting the choice of using age, growth determination, and condition factors (K) as part of the monitoring method for the fishes in Malaysia waters. This research specifically examines the use of age, length-weight relationship (LWR), and K to monitor the status of the commercially important fishes in Malaysia waters. LWR, K, and age of 10 commercially important trawl species (Gerres erythrourus, Drepane punctata, Otolithes ruber, Anodontostoma chacunda, Drepane longimana, Dendrophysa russelii, Sillago parvisquamis, Cynoglossus bilineatus, Sardinella brachysoma, and Alepes kleinii) from Mersing coastal waters, Johor, Malaysia, were studied. LWR (W=aLb ) indicated positive allometric growth (b > 3) for G. erythrourus and D. punctata but negative allometric growth (b < 3) for the other species. Results indicated that the species collected were in good conditions (average K, Kn > 1) in Mersing coastal waters, Johor, Malaysia. The daily growth rings of scale counts confirmed that the ages of the 10 species were typically less than 1 year (age range: 50-170 days; mean age: 95 days). The data obtained from this study will be useful for understanding the population growth pattern, age, and well�being of commercially important trawl species, which will facilitate better management techniques of these important fishery resources. Penerbit Universiti Kebangsaan Malaysia 2021-01 Article PeerReviewed application/pdf en http://journalarticle.ukm.my/16386/1/1.pdf Simon Kumar Das, and Tou, Wee Xiang and Noorashikin Md Noor, and Moumita De, and Abdullah Samat, (2021) Length-weight relationship, condition factor, and age estimation of commercially important trawl species from Mersing coastal waters, Johor, Malaysia. Sains Malaysiana, 50 (1). pp. 1-7. ISSN 0126-6039 https://www.ukm.my/jsm/malay_journals/jilid50bil1_2021/KandunganJilid50Bil1_2021.html
spellingShingle Simon Kumar Das,
Tou, Wee Xiang
Noorashikin Md Noor,
Moumita De,
Abdullah Samat,
Length-weight relationship, condition factor, and age estimation of commercially important trawl species from Mersing coastal waters, Johor, Malaysia
title Length-weight relationship, condition factor, and age estimation of commercially important trawl species from Mersing coastal waters, Johor, Malaysia
title_full Length-weight relationship, condition factor, and age estimation of commercially important trawl species from Mersing coastal waters, Johor, Malaysia
title_fullStr Length-weight relationship, condition factor, and age estimation of commercially important trawl species from Mersing coastal waters, Johor, Malaysia
title_full_unstemmed Length-weight relationship, condition factor, and age estimation of commercially important trawl species from Mersing coastal waters, Johor, Malaysia
title_short Length-weight relationship, condition factor, and age estimation of commercially important trawl species from Mersing coastal waters, Johor, Malaysia
title_sort length-weight relationship, condition factor, and age estimation of commercially important trawl species from mersing coastal waters, johor, malaysia
url http://journalarticle.ukm.my/16386/
http://journalarticle.ukm.my/16386/
http://journalarticle.ukm.my/16386/1/1.pdf