* ICLARM is now known as WorldFish Center

Naga - The *ICLARM Quarterly
Vol. 22, No. 2 (April - June 1999)

Network of Tropical Aquaculture Fisheries Professionals (NTAFP) Section

Aquabyte (Aquaculture Section of NTAFP)
The importance of fish in the diet and nutrition of rural households in developing tropical countries, especially in Asia, is well recognized. Declining catches from common or open access inland capture fisheries are resulting in declining intake of fish by low-income rural households who depend on these resources for their animal protein requirements. This is resulting in malnutrition, especially among children. This issue contains a paper which brings out the importance of small indigenous fish as a source of calcium, iron and Vitamin A and the possibility of culturing these fish along with other carps.
Rice field fisheries are a major source of fish for people in many provinces of Cambodia and managers and development workers should not neglect to conserve and manage these resources, while promoting aquaculture and other developmental activities.

Dr. M.V. Gupta

Rice Field Fisheries: A Resource for Cambodia
H. Guttman

Small-scale fisheries in and around rice fields in the lowland areas of Cambodia are greatly underestimated and undervalued. Their contribution to the protein requirements of the poor rural households is significant. In Svay Rieng province, they could provide 65-75% of the animal protein requirements of these households. The value could well be around 40% of the value of rice production. It is, therefore, important that these natural stocks and the fisheries are managed well and that developmental activities explicitly consider their impact on these fisheries.

H. Guttman is a Program Specialist from the AIT Aqua Outreach, Asian Institute of Technology, P.O. Box 4, Klong Luang, Pathumthani, 12120, Thailand.

Culture of Mola (Amblypharyngodon mola) in Polyculture with Carps - Experience from a Field Trial in Bangladesh
N. Roos, Md. M. Islam, S.H. Thilsted, Md. Ashrafuddin, Md. Mursheduzzaman, D.M. Mohsin 
and A.B.M. Shamsuddin

Studies were carried out during May 1997 to January 1998 in Kishoreganj district in Bangladesh to investigate the production potential of carp polyculture in combination with Amblypharyngodon mola in seasonal ponds. The preliminary results indicate that A. mola can be successfully cultured in small seasonal ponds in polyculture with carp. This practice can result in an increase in the households’ consumption of small fish which have a very high content of calcium, iron and vitamin A. In addition to the nutritional benefits, it can also provide additional income through the sale of carp and surplus small fish.

N. Roos and S.H. Thilsted are from the Research Department of Human Nutrition, The Royal Veterinary and Agricultural University, Denmark while Md. M. Iislam, Md. Aasrafuddin, Md. M. Mursheduzzaman, D.M. Mohsin and A.B.M. Shamsuddin are from the Mymensingh Aquaculture Extension Project, Mymensingh, Bangladesh.

Chemoreception Studies in Relation to Feeding Responses in the Marine Shrimps H. Milne Edwards (Penaeus indicus) and Miers (Metapenaeus dobsonii)
C.H. Fernandez

A study of chemoreception in relation to feeding and other factors involved showed that feeding behavior in shrimps can be triggered by chemical stimuli. However, P. indicus and M. dobsonii differ significantly in their chemotactic response to different stimuli.

C.H. Fernandez is Assistant Professor at the Department of Fisheries Farm Management, Fisheries College and Research Institute, Tuticorin 628008, India.

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