Sex ratio, spawning season and the size at maturity of Parapenaeopsis sculptilis (Heller 1862) in the coastal waters of Perak, Peninsular Malaysia
Parapenaeopsis sculptilis (Heller, 1862) locally referred to as "udang kulit keras" in Malaysia has profound biological, ecological, aquacultural and conservational significance. The reproductive biology of this important penaeid from the coastal waters of Perak, Peninsular Malaysia, was s...
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| Format: | Article |
| Language: | English |
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Triveni Enterprises
2016
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| Online Access: | http://psasir.upm.edu.my/id/eprint/53803/ http://psasir.upm.edu.my/id/eprint/53803/1/Sex%20ratio%2C%20spawning%20season%20and%20the%20size%20at%20maturity%20of%20Parapenaeopsis%20sculptilis%20.pdf |
| _version_ | 1848852380004646912 |
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| author | Arshad, Aziz Amani, A. A. Harmuj Ali Sarker, S. M. Nurul Amin Md. Yusoff, Fatimah |
| author_facet | Arshad, Aziz Amani, A. A. Harmuj Ali Sarker, S. M. Nurul Amin Md. Yusoff, Fatimah |
| author_sort | Arshad, Aziz |
| building | UPM Institutional Repository |
| collection | Online Access |
| description | Parapenaeopsis sculptilis (Heller, 1862) locally referred to as "udang kulit keras" in Malaysia has profound biological, ecological, aquacultural and conservational significance. The reproductive biology of this important penaeid from the coastal waters of Perak, Peninsular Malaysia, was studied during the period between February 2012 to January 2013. Females outnumbered males with a sex ratio of M: F= 1:3 (P < 0.05). Four maturity stages of female gonads viz., immature, maturing, mature and spent stages were distinguished. The first stage of sexual maturity was attained at a length of 9.3 cm, and female P. sculptilis showed a peak gonadosomatic index during the month of April, August and October, indicating that P. sculptilis potentially breeds throughout the year. The findings of this study would greatly contribute towards the understanding of gonadal maturation, spawning season and breeding biology, which could be important for the effective population management of this prawn species. |
| first_indexed | 2025-11-15T10:37:09Z |
| format | Article |
| id | upm-53803 |
| institution | Universiti Putra Malaysia |
| institution_category | Local University |
| language | English |
| last_indexed | 2025-11-15T10:37:09Z |
| publishDate | 2016 |
| publisher | Triveni Enterprises |
| recordtype | eprints |
| repository_type | Digital Repository |
| spelling | upm-538032018-02-05T09:54:24Z http://psasir.upm.edu.my/id/eprint/53803/ Sex ratio, spawning season and the size at maturity of Parapenaeopsis sculptilis (Heller 1862) in the coastal waters of Perak, Peninsular Malaysia Arshad, Aziz Amani, A. A. Harmuj Ali Sarker, S. M. Nurul Amin Md. Yusoff, Fatimah Parapenaeopsis sculptilis (Heller, 1862) locally referred to as "udang kulit keras" in Malaysia has profound biological, ecological, aquacultural and conservational significance. The reproductive biology of this important penaeid from the coastal waters of Perak, Peninsular Malaysia, was studied during the period between February 2012 to January 2013. Females outnumbered males with a sex ratio of M: F= 1:3 (P < 0.05). Four maturity stages of female gonads viz., immature, maturing, mature and spent stages were distinguished. The first stage of sexual maturity was attained at a length of 9.3 cm, and female P. sculptilis showed a peak gonadosomatic index during the month of April, August and October, indicating that P. sculptilis potentially breeds throughout the year. The findings of this study would greatly contribute towards the understanding of gonadal maturation, spawning season and breeding biology, which could be important for the effective population management of this prawn species. Triveni Enterprises 2016-07 Article PeerReviewed application/pdf en http://psasir.upm.edu.my/id/eprint/53803/1/Sex%20ratio%2C%20spawning%20season%20and%20the%20size%20at%20maturity%20of%20Parapenaeopsis%20sculptilis%20.pdf Arshad, Aziz and Amani, A. A. and Harmuj Ali Sarker, S. M. Nurul Amin and Md. Yusoff, Fatimah (2016) Sex ratio, spawning season and the size at maturity of Parapenaeopsis sculptilis (Heller 1862) in the coastal waters of Perak, Peninsular Malaysia. Journal of Environmental Biology, 37 (spec. 4). pp. 709-713. ISSN 0254-8704; ESSN: 2394-0379 http://www.jeb.co.in/index.php?page=issue_toc&issue=201607_jul16_spl |
| spellingShingle | Arshad, Aziz Amani, A. A. Harmuj Ali Sarker, S. M. Nurul Amin Md. Yusoff, Fatimah Sex ratio, spawning season and the size at maturity of Parapenaeopsis sculptilis (Heller 1862) in the coastal waters of Perak, Peninsular Malaysia |
| title | Sex ratio, spawning season and the size at maturity of Parapenaeopsis sculptilis (Heller 1862) in the coastal waters of Perak, Peninsular Malaysia |
| title_full | Sex ratio, spawning season and the size at maturity of Parapenaeopsis sculptilis (Heller 1862) in the coastal waters of Perak, Peninsular Malaysia |
| title_fullStr | Sex ratio, spawning season and the size at maturity of Parapenaeopsis sculptilis (Heller 1862) in the coastal waters of Perak, Peninsular Malaysia |
| title_full_unstemmed | Sex ratio, spawning season and the size at maturity of Parapenaeopsis sculptilis (Heller 1862) in the coastal waters of Perak, Peninsular Malaysia |
| title_short | Sex ratio, spawning season and the size at maturity of Parapenaeopsis sculptilis (Heller 1862) in the coastal waters of Perak, Peninsular Malaysia |
| title_sort | sex ratio, spawning season and the size at maturity of parapenaeopsis sculptilis (heller 1862) in the coastal waters of perak, peninsular malaysia |
| url | http://psasir.upm.edu.my/id/eprint/53803/ http://psasir.upm.edu.my/id/eprint/53803/ http://psasir.upm.edu.my/id/eprint/53803/1/Sex%20ratio%2C%20spawning%20season%20and%20the%20size%20at%20maturity%20of%20Parapenaeopsis%20sculptilis%20.pdf |