Sains Malaysiana 39(6)(2010): 877–882

Population Parameters of Planktonic Shrimp, Lucifer intermedius (Decapoda: Sergestidae) from Sungai Pulai Seagrass Area Johor, Peninsular Malaysia

(Parameter Populasi Udang Plankton, Lucifer intermedius (Decapoda: Sergestidae)

dari Kawasan Rumput Laut Sungai Pulai, Johor Semenanjung Malaysia)

Aziz Arshad*¹, S. M. Nurul Amin², Norhafizah Osman²,  Zaidi Che Cob³ & Che Roos Saad¹

¹Department of Aquaculture, Faculty of Agriculture

Universiti Putra Malaysia, 43400 UPM Serdang, Selangor, Malaysia

²Laboratory of Marine Science and Aquaculture, Institute of Bioscience

Universiti Putra Malaysia, 43400 UPM Serdang, Selangor, Malaysia

³School of Enviromental and Earth Sciences
Faculty & Science and Technology
Universiti Kebangsaan Malaysia
43600, Bangi, Selangor, Malaysia

Diserahkan: 10 September 2009 / Diterima: 5 April 2010

ABSTRACT

Growth, mortality and recruitment of the sergestid shrimps Lucifer intermedius, collected from the Sungai Pulai seagrass area in Johor, Peninsular Malaysia was investigated between April 2007 and December 2007 using monthly length-frequency data. The shrimps were collected during the day by subsurface towing of a Bongo net with a mesh size of 500 μm for 30 minutes. Total length was measured monthly for 50 individuals and the estimated extreme length was 10.42 mm. The von Bertalanffy growth parameters, K and L∞ were estimated as 1.40 yr-1 and 11.10 mm, respectively. The growth performance index (φ’) was 2.237 while total mortality (Z) was calculated at 5.32 yr-1. The natural and fishing mortality was 2.99 yr-1 and 2.33 yr-1, respectively. The recruitment pattern of L. intermedius was continuous throughout the year with two major peaks. The exploitation rate (E) was estimated at 0.44. This indicates that fishery status of L. intermedius in the Sungai Pulai sea grass area of Johor Strait is below the optimum level of exploitation (E < 0.50).

Keywords: Growth parameters; Lucifer intermedius; Malaysia; mortality

ABSTRAK

Tumbesaran, mortaliti dan pengrekrutan udang sergestid, Lucifer intermedius yang dikumpul dari kawasan rumput laut di Johor, Semenanjung Malaysia telah dikaji antara April 2007 hingga Disember 2007 dengan menggunakan data panjang-frekuensi bulanan. Udang ditangkap pada siang hari secara menarik jaring Bongo dengan saiz matjaring 500 μm di bawah permukaan air selama 30 minit. Jumlah panjang badan diukur daripada 50 individu dan anggaran panjang ekstrem adalah 10.42 mm. Parameter tumbesaran von Bertalanffy, K and L∞ masing-masing dianggarkan bernilai 1.40 dan 11.10 mm tahun-1. Indeks prestasi tumbesaran (ϕ’) adalah 2.237 manakala jumlah mortaliti (Z) pula telah dikira pada nilai 5.32 tahun-1. Mortaliti secara semula jadi dan tangkapan adalah masing-masing berada pada tahap 0.44 dan 2.33 tahun-1. Corak pengrekrutan bagi L. intermedius adalah berterusan sepanjang tahun dengan dua puncak. Kadar pengeksploitasian telah dianggar pada nilai 0.48. Ini menunjukkan yang status perikanan L. intermedius di kawasan rumput laut Sungai Pulai Selat Johor berada di bawah daripada paras optimum eksploitasi (E < 0.50).

Kata kunci: Lucifer intermedius; Malaysia; mortaliti; parameter tumbesaran

RUJUKAN

Amin, S.M.N., Arshad, A., Japar, S.B. & Siraj, S.S. 2008. Age structure, growth, mortality and yield-per-recruit of sergestid shrimp, Acetes indicus (Decapoda: Sergestidae) from the coastal waters of Malacca, Peninsular Malaysia. Journal of Applied Sciences 9(5): 801-814.

Bowman, T.E. 1967. The planktonic shrimp, Lucifer chacei sp. nov. (Sergestidae: Luciferinae), the Pacific twin of the Atlantic Lucifer faxoni. Pacific Science 21: 226-271.

Enin, U.I, Lowenberg, U. & Kunzel, T. 1996. Population dynamics of the estuarine prawn (Nematopalaemon hastatus Aurivillius 1898) off the southeast coast of Nigeria. Fisheries Research 26: 17-35.

Etim, L. & Sankare, Y. 1998. Growth and mortality, recruitment and yield of the fresh-water shrimp, Macrobrachium vollenhovenii, Herklots 1851 (Crustacea, Palaemonidae) in the Fahe reservoir, Cote d’Ivoire, West Africa. Fisheries Research 38: 211-223.

Gayanilo, F.C., Sparre, P. & Pauly, D. 1996. The FAO-ICLARM Stock Assessment Tools (FiSAT) Users Guide. FAO Computerized Information Series, Fisheries, No. 8, FAO, Rome, 126 pages.

Gulland, J.A. 1971. The fish resources of the Ocean. Farnham: Fishing News, Farnham.

Jayawardane, P.A.A.T., McLusky, D.S. & Tytler, P. 2003. Population dynamics of Metapenaeus dobsoni from the western coastal waters of Sri Lanka. Fisheries Management Ecology 10: 179-189.

Kensley, B.F. 1971. The family Sergestidae in the waters around southern Africa (Crustacea, Decapoda, Natantia). Annals of the South African Museum 57: 215-265.

Lovett, D.L., 1981. The Shrimps, Prawns, Lobsters and Crabs of Malaysia and Singapore. Faculty of Fisheries and Marine Science, Universiti Pertanian Malaysia. Occasional Publ. no. 2, pp156.

Oh, C-W. & Jeong, I-J. 2003. Reproduction and population dynamics of Acetes chinensis (Decapoda: Sergestidae) on the western coast of Korea, Yellow Sea. Journal of Crustacean Biology 23 (4): 827-835.

Omori, M. 1974. The biology of pelagic shrimps in the ocean. Advances in Marine Biology 12: 233-324.

Omori, M. 1975. The systematics, biogeography and fishery of epipelagic shrimps of the genus Acetes (Crustacea, Decapoda, Sergestidae). Bulletin of Ocean Research Institute, University of Tokyo 7: 1-91.

Omori, M. 1977. Distribution of warm water epiplanktonic shrimps of the genera Lucifer and Acetes (Macrura, Penaeidea, Sergestidae). In Proceedings of Symposium of Warm Water Zooplankton, pp. 1-12 Special publication of UNESCO/NIO.

Omori, M. 1992. Occurrence of two species of Lucifer (Dendrobranchiata: Sergestoidea: Luciferidae) off the pacific coast of America. Journal of Crustacean Biology 12(1): 104-110.

Paraconstantinou, C. & Kapiris, K. 2001. Distribution and population structure of the red shrimp (Aristeus antennatus) on an unexploited fishing ground in the Greek Ionian Sea. Aquatic Living Resources 14: 303-312.

Pauly, D. 1980. On the interrelationships between natural mortality, growth parameters and mean environmental temperature in 175 fish stocks. Journal of Conservation and International Exploration of Maritime 39(3): 175-192.

Pauly, D. 1984. Fish population dynamics in tropical waters: a manual for use with programmable calculators. ICLARM Contribution 143: 1-325.

Pauly, D. & David, N. 1981. ELEFAN-I BASIC program for the objective extraction of growth parameters from Length frequency data. Meeresforsch 28(4): 205-211.

Pauly, D. & Caddy, J.F. 1985. A modification of Bhattacharya’s method for the analysis of mixtures of normal distributions. FAO Fisheries Circular 781: 1-16.

Pauly, D. & Munro, J.L. 1984. Once more on the comparison of growth in fish and invertebrate. ICLARM, Fishbyte 2 (1): 21.

Petit, D. 1973. Donnees sur la morphologie et al croissance chez le genre Lucifer (Decapodes Sergestidae): L. intermedium, L. penicillifer, L. hanseni, L. chacei, L. faxoni. Cahiers O.R.S.T.O.M., serie Oceanographie 11: 207-227.

Willmer, P., Stone, G. & Johnston, I. 2000. Environmental Physiology of Animals. Oxford, London: Blackwell Science.

Zafar, M., Mustafa, M.G., Amin, S.M.N. & Akhter, S. 1997. Studies on population dynamics of Acetes indicus from Bangladesh coast. The Journal of National Oceanography and Maritime 14(1&2): 1-15.

*Pengarang untuk surat-menyurat; email: azizarshad@putra.upm.edu.my