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No Thumbnail AvailableProjectThe Pelagic and Demersal Fish Resources of North East Somalia - Results of two surveys with R/V Dr. Fridtjof Nansen in 1984. Final Report 1984
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No results found.Since the International Indian Ocean Expedition (IIOE, 1959-65), which produced abundant data on the oceanographic and biological environment, the seas off North East Somalia have been known to belong to the high productive areas of the world in terms of primary and secondary production, due to the seasonal upwelling occurring in the area. Even though direct data on fish resources were missing, it was assumed that the area could hold considerable fish resources. Based on the findings f rom IIOE, a joint programme between the Norwegian Agency for International Development (NORAD) and the Food and Agriculture Organisation of the United Nations (FAO) was set up to investigate the fish resources of the Arabian Sea. In the period from January 1975 to November 1976 the R/V “Dr. Fridtjof Nansen” carried out five coverages of the coastal waters from Pakistan to Somalia. Based on the acoustic data collected during these surveys, the fish resources of Somalia were estimated to the avera ge level of 570 thousand tonnes for the small pelagic fish and 400 thousand tonnes for demersal fish, making it one of the most productive areas in the Indian Ocean. The dominating part of the pelagic stock was located between Ras Hafun and Ras Asir, which is also the center of the upwelling system. During the years 1983-84 the vessel returned to the region under the UNDP/FAO programme GLO/82/001 “Survey and identification of World Marine Resources”, with the purpose of investigating the hi gh productive regions located during the 1975-76 surveys. In agreement with the Ministry of Fisheries in Mogadishu two coverages of the region between Ras Asir and Ras Mabber were planned for February and August 1984. The main objectives of these surveys were to update the previous findings and provide more detailed information on the state of the resources with a more intensive sampling programme than during the earlier surveys. -
DocumentAssessment of stocks of demersal fish off the west coasts of Thailand and Malaysia 1971
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No results found.The increase in Thailand's population and the insufficiency of trawl catch in the traditional fisheries in the Gulf of Thailand led to proposals to increase trawl fishing off the Thai and Malaysian Indian Ocean coasts. Thailand bought a vessel to undertake research on catch rates of good and of scrap fish, changes in abundance, distribution of fish at various depths, potential resources, and the relationship between catch and effort. Certain infrastructural lacunae have hitherto hampered the tra wl-fisheries development of Thailand's Indian Ocean coast: rail or road transport, boats, marketing, landing places, and ice or cold-storage facilities. The analysis of catch and the assessment of stock of demersal fish indicates that the level of sustained yield may already have been reached by 1968. If this is so, additional effort will not increase the yield and may actually decrease it and will certainly decrease the catch per effort and hence the profitability. Systematic surveys for catch and effort studies and research on the biology of commercially important demersal fish species should be intensified and carried out regularly to acquire the scientific basis for proper management of fish stocks in the future. -
No Thumbnail AvailableProjectCruise Report Dr. Fridtjof Nansen - Second Fisheries Resource Survey in the Tanzania, 12 November - December 1982 1982
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