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Proceeding of the Technical Seminar on South China Sea Fisheries Resources, Bangkok, Thailand, 21-25 May 1973 Item Type book Publisher Japan International Cooperation Agency Download date 24/09/2021 11:53:28 Link to Item http://hdl.handle.net/1834/40473 PROCEEDING OF THE TECHNICAL SEMINAR ON SOUTH CHINA SEA FISHERIES RESOURCES Bangkok, THAILAND 21-25 May 1973 organized by SOUTHEAST ASIAN FISHERIES DEVELOPMENT CENTER published by JAPAN INTERNATIONAL COOPERATION AGENCY Tokyo, JAPAN March 1977 PREFACE The present proceedings contains the record of discussions at the last SEAFDEC Seminar held at Bangkok in May 1973. The Seminar, conducted with the participation of many experienced fisheries experts from SEAFDEC countries and other Southeast Asian countries, was made a great success by the active exchange of constructive expert opinions and views which offered a promising prospect for the future fisheries development in the whole Southeast Asian waters. The high evaluations given to the Seminar were manifested in the enthusiastic desire evinced by all countries and organizations concerned for early publication of its outcome which, however, has been postponed regrettably to date by reason of various restraints. It therefore gives me a great pleasure to present herewith the proceedings of the Seminar compiled and published by Japan International Cooperation Agency in compliance with the request of the Secretariat of SEAFDEC. Availing myself of this opportunity, I wish to express my deep gratitude to all organizations and individuals for the valuable assistance in the compilation of the proceedings, with my ardent hope that the proceedings will be found useful by the competent fisheries authorities and organizations in their search and endeavours at the consolidated development of fishing industry. Shinsaku Hogen President Japan International Cooperation Agency February 1, 1977 FORWARD For some considerable time the countries bordering the South China Sea have been aware of the need for more detailed knowledge of the fisheries resources of the South China Sea. At the Fourteenth Session of the Indo-Pacific Fisheries Council (IPFC), 1970, it was recommended that the Southeast Asian Fisheries Development Center (SEAFDEC) or some other regional body organize a technical seminar on matters pertaining to the South China Sea and make available to the IPFC the results arising from such efforts. With the approval of the Council of SEAFDEC at its Fifth Meeting, 1972, the Technical Seminar on South China Sea Fisheries Resources was convened by the Center in Bangkok from 21 to 25 May 1973. In a joint effort, the technical aspects of the Seminar was arranged by the Marine Fisheries Research Department of the Center while the organization of the Seminar was carried out by the Secretariat. It was gratifying to note that the Seminar was very successful with active participation of participants from countries bordering the South China Sea. The Publication of the Seminar Proceedings, which has been delayed for two years by the limitation of funds, is now made possible by a generous contribution from Japan International Cooperation Agency (JICA). On behalf of the Southeast Asian Fisheries Development Center, I wish to express my heartfelt thanks to JICA for their assistance and sincerely hope that the knowledge gained from this important Seminar will be useful for future fishery development planning and for the management of the fisheries resources and fisheries of the countries in the region. I would like to take this opportunity to thank the staff of the Secretariat, the Training Department and the Marine Fisheries Research Department, particularly Drs. S. Shindo and O. Suzuki and Mrs. Francesca Sreesangkom for their efforts in compiling the texts of the Proceedings. Thanks are also due to Mr. Pisit Ngam-ngod of the Marine Fisheries Laboratory, Department of Fisheries, Bangkok, for his preparation of the text figures. Deb Menasveta Secretary-General Bangkok 21 January 1977 CONTENTS Page Introduction ....................................................................................................................................................................... 1 Part I Country reports ................................................................................................................................................. 2 Malaysia .......................................................................................................................................................................... 2 Republic of the Philippines ....................................................................................................................................... 6 Republic of Singapore ................................................................................................................................................ 18 Kingdom of Thailand ................................................................................................................................................ 19 Republic of Vietnam ................................................................................................................................................ 24 Part II Technical p ap ers................................................................................................................................................. 26 The pelagic resources ................................................................................................................................................. 26 Bureau of Fisheries A plan for the development of sea fisheries in the Philippines ................ 26 Kikawa, S. Tuna and tuna-like fish resources in the South China Sea and its adjacent waters 31 Kurogane, K. Some considerations of research and study on pelagic fishery resources ............................................................................................................. 41 The demersal resources .............................................................................................................................................. 43 Suzuki, O. A rational survey method for evaluation of trawl fishing ground ............ 43 Suzuki, O. Fish school structure of red snappers and bigeye snappers in the South China Sea 46 Shirota, A. & Ratanachote, A. Preliminary observation on the distribution and catch of the shovel-nosed lobster, Thenus orientalis LUND in South China Sea 49 Senta, T., Tan, S.M. and Lim, P.Y. Results of the experimental trawl in the South China Sea by R/V CHANGI in the years 1970 to 1972 52 Senta, T. & Peng, C. C. Studies on the feeding habits of red snappers, Lutjanus sanguineus and L. seabae 63 Senta, T. & Tan, S.M. Trawl fishing grounds in North Andaman Sea .......................................... 66 Senta, T., Miyata, C. and Tan, S.M. Demersal fish resources in untrawlable waters, viewed through vertical-line fishing 70 Senta, T., Kungvankij, P. and Tan, S.M. Biological study of red snapper, Lutjanus sanguineus ..... 78 Shirota, A. Records of echo-sounder tracing as guide to locate and evaluate good fishing grounds 85 Hooi, K.K. A study of the catch data of the JURONG in the South China Sea in 1971 and 1972 88 Liu, H.C. The demersal resources of the South China Sea .......................................... 94 Aoyama, T. Research on demersal fishes on the continental slope in the northern part of the South China Sea; the cruise result of R/V KAIYO-MARU 99 The fisheries oceanography ..................................................................................................................................... 100 Suzuki, O. Fishing condition and its oceanographic interpretation in bottom longline fishing grounds 100 Suzuki, O. and Hooi, K.K. Behaviour of the warm-water mass along the east coast of the Malay Peninsula 103 Lim, L. C. Preliminary report on the distribution of chaetognaths in the southern part of the South China Sea 106 Shirota, A. Some consideration on the relationship between environmental factors and the distribution of fisheries resources in the South China and the Andaman Sea ..................................................................................... 111 Shirota, A. Brief note on the relationship of scattering layer and some hydrobiological factors 115 The current status of fisheries including statistics ............................................................................................. 117 Yamamoto, T. Current status of fisheries development in South China Sea area ............. 117 Yamamoto, T. Fisheries statistics required for the stock assessment of fisheries resources in South China Sea area 120 Chen Foo Yan & S. Mito Current status of research activities of the Marine Fisheries Research Department, SEAFDEC 125 Flores, E. C. Harvesting of marine resources in the Philippines ..................................... 130 Yamamoto, T. Problems other than fisheries resources in the South China Sea ............. 133 Ha-Khac-Chu Fisheries of Vietnam ........................................................................ 138 The others .................................................................................................................................................... 139 Seow, P.C. and Tay, G. Preliminary observations on the utilization of pig-dung effluent for fish production ................................................................................ 139 Caces-Borja, P. The sea weed industry of the Philippines ..............................................