On the biology and basic characteristics of the population dynamic of the dog conch, Strombus canarium Linnaeus, 1758 (Strombidae)

Strombus canarium Linnaeus, 1758 is among the important gastropod fishery within the western Johor Straits, Malaysia. In this study, systematic random samplings using belt transect were conducted from January to December 2005. Shell-length data were grouped into different sexes and length-classes of...

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Main Authors: Che Cob, Zaidi, Arshad, Aziz, Bujang, Japar Sidik, Abd Ghaffar, Mazlan
Format: Article
Language:English
Published: Penerbit Universiti Sains Malaysia 2008
Online Access:http://psasir.upm.edu.my/id/eprint/15910/1/15910.pdf
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author Che Cob, Zaidi
Arshad, Aziz
Bujang, Japar Sidik
Abd Ghaffar, Mazlan
author_facet Che Cob, Zaidi
Arshad, Aziz
Bujang, Japar Sidik
Abd Ghaffar, Mazlan
author_sort Che Cob, Zaidi
collection UPM
description Strombus canarium Linnaeus, 1758 is among the important gastropod fishery within the western Johor Straits, Malaysia. In this study, systematic random samplings using belt transect were conducted from January to December 2005. Shell-length data were grouped into different sexes and length-classes of 2 mm intervals. Overall ratio of males to females was 1:1.73, which was not significantly deviated from the expected 1:1 (P > 0.05). The population structure was analyzed using the Length-based Fish Stock Assessment (LFSA) protocol in FiSAT (FAO-ICLARM Stock Assessment Tools) software package. Both males and females were highly polymodal in monthly length-frequency distributions. Sexual dimorphism was evident within the population. Specific cohort growth parameters found higher asymptotic length (L∞) and growth constant (K) in females compared to the males. The mean L∞ was 62.90 ± 3.68 mm in males and 69.73 ± 0.80 mm in females, while the mean K was 1.10 ± 0.15 yr–1 in males and 1.40 ± 0.10 yr–1 in females. The higher growth rates and faster growth to marketable size, combined with all year round recruitment indicated great potential for introduction into aquaculture. However, further studies are greatly needed in assessing actual growth and other parameters of this important gastropod species.
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spelling upm.eprints-159102017-04-13T05:49:20Z http://psasir.upm.edu.my/id/eprint/15910/ On the biology and basic characteristics of the population dynamic of the dog conch, Strombus canarium Linnaeus, 1758 (Strombidae) Che Cob, Zaidi Arshad, Aziz Bujang, Japar Sidik Abd Ghaffar, Mazlan Strombus canarium Linnaeus, 1758 is among the important gastropod fishery within the western Johor Straits, Malaysia. In this study, systematic random samplings using belt transect were conducted from January to December 2005. Shell-length data were grouped into different sexes and length-classes of 2 mm intervals. Overall ratio of males to females was 1:1.73, which was not significantly deviated from the expected 1:1 (P > 0.05). The population structure was analyzed using the Length-based Fish Stock Assessment (LFSA) protocol in FiSAT (FAO-ICLARM Stock Assessment Tools) software package. Both males and females were highly polymodal in monthly length-frequency distributions. Sexual dimorphism was evident within the population. Specific cohort growth parameters found higher asymptotic length (L∞) and growth constant (K) in females compared to the males. The mean L∞ was 62.90 ± 3.68 mm in males and 69.73 ± 0.80 mm in females, while the mean K was 1.10 ± 0.15 yr–1 in males and 1.40 ± 0.10 yr–1 in females. The higher growth rates and faster growth to marketable size, combined with all year round recruitment indicated great potential for introduction into aquaculture. However, further studies are greatly needed in assessing actual growth and other parameters of this important gastropod species. Penerbit Universiti Sains Malaysia 2008 Article PeerReviewed application/pdf en http://psasir.upm.edu.my/id/eprint/15910/1/15910.pdf Che Cob, Zaidi and Arshad, Aziz and Bujang, Japar Sidik and Abd Ghaffar, Mazlan (2008) On the biology and basic characteristics of the population dynamic of the dog conch, Strombus canarium Linnaeus, 1758 (Strombidae). Journal of Bioscience, 19 (2). pp. 73-89. ISSN 1985-3718; ESSN: 2180-4249 http://www.tlsr.usm.my/TLSRvol19no2.html
spellingShingle Che Cob, Zaidi
Arshad, Aziz
Bujang, Japar Sidik
Abd Ghaffar, Mazlan
On the biology and basic characteristics of the population dynamic of the dog conch, Strombus canarium Linnaeus, 1758 (Strombidae)
title On the biology and basic characteristics of the population dynamic of the dog conch, Strombus canarium Linnaeus, 1758 (Strombidae)
title_full On the biology and basic characteristics of the population dynamic of the dog conch, Strombus canarium Linnaeus, 1758 (Strombidae)
title_fullStr On the biology and basic characteristics of the population dynamic of the dog conch, Strombus canarium Linnaeus, 1758 (Strombidae)
title_full_unstemmed On the biology and basic characteristics of the population dynamic of the dog conch, Strombus canarium Linnaeus, 1758 (Strombidae)
title_short On the biology and basic characteristics of the population dynamic of the dog conch, Strombus canarium Linnaeus, 1758 (Strombidae)
title_sort on the biology and basic characteristics of the population dynamic of the dog conch strombus canarium linnaeus 1758 strombidae
url http://psasir.upm.edu.my/id/eprint/15910/1/15910.pdf
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