http://hdl.handle.net/20.500.12066/3970 2026-04-06T11:41:47Z 2026-04-06T11:41:47Z Sugaya, Takuma http://hdl.handle.net/20.500.12066/4087 2022-02-28T03:56:31Z 2006-01-01T00:00:00Z

Organization and development of stock enhancement in Japan Sugaya, Takuma Primavera, Jurgenne H.; Quinitio, Emilia T.; Romana-Eguia, Maria Rowena R. In the 1960s, the Japanese economy was starting to industrialize. The rapid increase in business investment in new factories and equipment stimulated a yearly economic growth rate of approximately 12% (METI 1970). However, these developments have disrupted coastal landscapes through land reclamation and industrial effluents (Fishery Agency 1980a). Furthermore, overfishing has accelerated with increased consumer spending and demand for fish protein. Consequently, coastal fish resources such as red sea bream (Pagrus major), kuruma prawn (Marsupenaeus japonicus) and swimming crab (Portunus trituberculatus) have been depleted and income of coastal fisherfolk has decreased (Fishery Agency, 1980). Under such conditions, the Japanese government initiated the Stock Enhancement Program in 1963 (Fishery Agency, 1980; Imamura, 1999). The program initially targeted red sea bream and kuruma prawn in the Seto Inland Sea in southern Japan which covers almost 3,000 islands (Imamura, 1999). Because the fundamental concept of stock enhancement programs was to compensate juvenile loss caused by high larval mortality in the ocean, development of mass juvenile production techniques was emphasized (Fishery Agency 1980a; Matsuoka, 1989). Therefore, the release of juveniles became a typical form of stock enhancement in Japan. The current number of target species for stock enhancement has increased to almost 80 species. Stock enhancement is undertaken by both the national government and local governments together with conservation of fishing ground and regulation of fish catches for resource management (Resource Association 1983a; Imamura 1999; Fishery Agency 2000; JASFA 2003a). This article reports the present status of stock enhancement in Japan from the organizational and technical viewpoints.

2006-01-01T00:00:00Z Ibrahim, Kamarruddin Ilias, Zaidnuddin http://hdl.handle.net/20.500.12066/4089 2023-03-23T02:37:41Z 2006-01-01T00:00:00Z

Fishery stock enhancement in Malaysia Ibrahim, Kamarruddin; Ilias, Zaidnuddin Primavera, Jurgenne H.; Quinitio, Emilia T.; Eguia, Maria Rowena Species extinction is a global issue that requires all nations to practice sustainable management. This paper aims to examine the status of endangered fisheries species in Malaysia, and highlight some resource management initiatives including the restocking and stock enhancement program in the country. Its scope covers only aquaculture-based species, which is in line with the Program on Stock Enhancement for Species of International Concern being implemented by the Southeast Asian Fisheries Development Center/Aquaculture Department in the Philippines.

2006-01-01T00:00:00Z Okuzawa, Koichi Lebata, Junemie Buen-Ursua, Shelah M. A. Quinitio, Emilia T. http://hdl.handle.net/20.500.12066/4080 2021-11-28T03:07:32Z 2006-01-01T00:00:00Z

The SEAFDEC/AQD experience in stock enhancement Okuzawa, Koichi; Lebata, Junemie; Buen-Ursua, Shelah M. A.; Quinitio, Emilia T. Primavera, Jurgenne H.; Quinitio, Emilia T.; Eguia, Maria Rowena The Aquaculture Department (AQD) of the Southeast Asian Fisheries Development Center (SEAFDEC) started stock enhancement activities in 2000 as part of the Coastal Fishery Management Project in Malalison Is., Culasi, Antique, Philippines (SEAFDEC/AQD 1998). This was the same year as the Bangkok Declaration and Strategy for Aquaculture Development (NACA/FAO, 2000), which affirmed the potential of stock enhancement to increase fish supply. Since then, research on seed production, and release and monitoring strategies has been initiated on the abalone (Haliotis asinina), seahorses (Hippocampus barbouri, and H. kuda), mud crabs (Scylla serrata, S. olivacea and S. tranquebarica), top shell (Trochus niloticus), and window-pane oyster (Placuna placenta). Closing the life cycle and mass production of juveniles have been attained for most of these species, but actual releases have been conducted only for abalone and mud crabs. In this review article, we describe the present situation of stock enhancement of abalone, mud crab and seahorse at AQD.

2006-01-01T00:00:00Z Choudara, Hanh http://hdl.handle.net/20.500.12066/4088 2021-11-28T03:07:33Z 2006-01-01T00:00:00Z

Fisheries, aquaculture and stock enhancement in Lao PDR Choudara, Hanh Primavera, Jurgenne H.; Quinitio, Emilia T.; Eguia, Maria Rowena Fisheries development in Lao PDR is confined to inland fisheries development and sustainable freshwater aquaculture including culture-enhanced capture fisheries and fishery-enhanced aquaculture. Given the potential of water, wetland and aquatic resources and the magnitude of decline in fish catches from the Mekong River and its tributaries, the Government of Lao PDR has given priority to fisheries development with strong concern for sustainable aquaculture. The overall policy framework is therefore geared toward the sustainable use, appropriate management and protection of natural resources: forest, land and water resource including aquatic biodiversity. The national goal for fisheries development during the last decade was focused on how to increase fish production from aquaculture while maintaining capture fisheries, recognizing that about 50% of the dietary protein of Lao people comes from living aquatic resources which are important for food security of the nation.

2006-01-01T00:00:00Z