EFFECT OF STOCKING DENSITIES ON PRODUCTION AND ECONOMIC RETURN FROM THE SHRIMP, PENAEUS MONODON (FABRICIUS) UNDER SEMI-INTENSIVE CULTURE SYSTEM IN BANGLADESH

M.  Mostafa; Mike.  Elliott; Mahmudur  Rahman

doi:10.53808/KUS.2001.3.1.0134-L

Authors

M. Mostafa Fisheries and Marine Resource Technology Discipline, Khulna University, Khulna 9208, Bangladesh
Mike. Elliott Institute of Estuarine and Coastal Studies, The University of Hull, Hull, HU6 7RX, UK
Mahmudur Rahman Business Administration Discipline, School of Business, Khulna University, Khulna 9208, Bangladesh

DOI:

https://doi.org/10.53808/KUS.2001.3.1.0134-L

Keywords:

Tiger shrimp; Penaeus monodon; Semi-intensive; Stocking density; Economic return

Abstract

A study on production and economic return from the semi-intensive culture of Penaeus monodon (Fabricius) in relation to the stocking densities of 12, 15, 18 and 21 PL/ m2 of 112 days culture period is presented. The study was conducted to determine the suitable stocking density for maximum economic return. The results of the four treatments, T1 (12 PL/m2), T2 (15 PL/m2), T3 (18 PL/m2) and T4 (21 PL/m2) show that during the culture period, average weight gain of the species was significant (p< 0.02) where the highest (27.53 + 0.28 g) and the lowest (22.16 + 0.44 g) weight was gained by the stocking density 12 PL/m2 (T1) and 21 PL/m2 (T4) respectively. The growth rate of the species also varied significantly (p<0.003). The results also showed that with the increasing of stocking density, the growth and survival rate of the species decreased although the total production (Kg/ha) increased. Simultaneously, with the increasing of total production in different treatments (with increased stocking density) the production costs also increased. It was observed that
the highest (3327.5+121.5 kg/ha) and the lowest (2920.5+114.5 kg/ha) production was gained by the stocking density of 21 PL/ m2 (T4) and 12 PL/m2 (T1) respectively. However, the economic analysis showed that the trial with the stocking density 15 PL/m2 (T2) gained the highest (TK. 333701/ha/yr) economic return followed by the stocking 12 PL/m2 (T1) while the lowest return (TK. 280788/ha/yr) came from the highest stocking density, 21 PL/m2 (T4). This result indicated that increasing of stocking density may earn higher production but may not be suitable for increased economic return. Moreover, it could be a cause of economic loss.

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References

Allan, G.L., 1989. NSW prawn production up. Austasia Aquaculture Magazine, 4(5): 23-25.

Apud, F.D., Gonzales, K., and Deatras, N., 1981. Survival, growth and production of Penaeus monodon (Fab.) at different stocking densities in earthen ponds with flow through system and supplementary feeding. Fisheries Research Journal of Philippines, 6: 1-9.

Avnimelech, Y., Lacher, M., Raveh, A. and Zur, O., 1981. A method for the evaluation of conditions in a fish pond. Aquaculture, 23: 361-365.

Bagenal, T., 1978. Methods of assessment of fish population in fresh waters. Blackwell Sci. Publication, Oxford, London, 365 pp.

Chen, J.C., Liu, P.C. and Lin, Y.T., 1989. Culture of Penaeus monodon in an intensified system in Taiwan. In: J.L. Maclean, L.B. Dizon and L.V. Hossillos (eds.), The First Asian Fisheries Forum. Asian Fisheries Society, Manila, Philippines, pp. 25-29.

Chiang, P. and Liao, I.C., 1986. The practices of grass prawn (Penaeus monodon) culture in Taiwan from 1968 to 1984. Journal of the World Mariculture Society, 16: 297-315.

Chien, Y.H., and Lai, H.T., 1988. The effects of aged sediment and stocking densities on the fresh water prawn Macrobrachium rosenbergii culture. Journal of the World Aquaculture Society, 19(1): 22A-23A.

Emmerson, W.D. and Andrews, B., 1981. The effect of stocking density on growth, development and survival of Penaeus indicus Milne Edwards larvae. Aquaculture, 23: 45-57.

Geoff, L. and Greg, B.M., 1992. Effects of stocking density on production of Penaeus monodon (Fabricius) in model farming ponds. Aquaculture, 107: 49 – 66.

Hanson, J.E. and Goodwin, H.L., 1977. Shrimp and Prawn Farming in the Western Hemisphere. Dowden, Hutchinson and Ross, Stroudsburg PA, 439 pp.

Hopkins, J.S., Baird, M.L., Grados, O.G., Maier, P., Sandifer, P.A. and Stokes, A.D., 1988. Impacts of intensive shrimp production on the culture pond ecosystem. Journal of the World Aquaculture Society, 19(1): 37.

Hossain, S.M.Z., Corre, Jr.V. and Toledo, C.E., 1992. Effects of stocking densities on the growth, survival and production of Penaeus monodon (Fabricius). Bangladesh Journal of Zoology, 20(1): 35-42.

Khan, Y.S.A. and Hossain, M.S., 1996. Impacts of shrimp culture on the coastal environment of Bangladesh. International Journal of Ecology and Environmental Sciences, 22: 145-158.

Kongkeo, H., 1990. Pond management and operation. In: M.B. New, H. de Saram and T. Singh (eds.), Proceedings of the Aquatech ’90 Conference on Economic Aspect of Shrimp Farming. Kuala Lumpur, Malaysia, pp. 56 - 65.

Liao, I.C., 1977. A Culture study on grass prawn Penaeus manodon in Taiwan - the patterns, the problems and the prospects. Journal of the Fisheries Society of Taiwan, 5: 11 -29.

Liao, I.C., 1981. Status and problems of grass prawn culture in Taiwan. Paper presented at the ROC - Japan Symposium on Mariculture, Taipei, Taiwan, R.O.C., 35 pp.

Maguire, G.B. and Leedow, M.I., 1983. A study of the optimum stocking density and feed rate for school prawn Metapenaeus macleayi (Haswell) in some Australian brackishwater farming ponds. Aquaculture, 30: 285-297.

Mahmood, N., 1990. An assessment of the quantum damage caused to zooplankton while fishing bagda shrimp (Penaeus monodon) fry in Bangladesh estuaries. In: Proceedings, 7th National Zoological Conference of Bangladesh, pp. 87-97.

New, M.B., 1987. Feed and Feeding of Fish and Shrimp. A Manual on the Preparation and Presentation of Compound Feeds for Shrimp and Fish in Aquaculture. Report ADCP/REP/87/26. United Nations Development Program, Food and Agriculture Organization of the United Nations, Rome, Italy, 275 pp.

Pardy, C.R., Griffin, W.L., Johns, M.A. and Lawrence, A.L., 1983. A preliminary economic analysis of stocking strategies for penaeid shrimp culture. Journal of the World Mariculture Society, 14: 49-63.

Sandifer, P.A., Hopkins J.S. and Stokes, A.D., 1987. Intensive culture potential of Penaeus vannamei. Journal of the World Aquaculture Society, 18 (2): 94-100.

Tiro, L.B., Pudadera, B.J., Potestas, I.O. and Kungvankij, P., 1986. Intensification techniques in extensive culture of Penaeus monodon (Fabricius). In: J.L. Maclean, L.B. Dizon and L.V. Hosillos (eds.), The First Asian Fisheries Forum. Asian Fisheries Society, Manila, Philippines, pp. 93-95.

Wyban, J.A., Lee, C.S., Sato, V.T., Sweeney, J.N. and Richards, W.K.Jr., 1987. Effect of stocking density on shrimp growth rate in manure - fertilized ponds. Aquaculture, 61: 23 - 32.

Wyban, J.A. and Sweeney, J.N., 1989. Intensive shrimp grow out trials in a round pond. Aquaculture, 76:215-225.