Engineering and deployment of artificial reefs for a community-based fishery resource management project at Mararison Island, Antique, Philippines
This paper describes the self-initative of the island's inhabitants in the fabrication and deployment of concrete artificial reefs (ARs) using indigenouse materials as well as appropriate technology at Mararison Island, Antique, Philippines. Deployment of ARs is one of the developmental components of SEAFDEC/AQD assisted community-based fishery resource managment project. To determine transport and deployment problems, two prototype prefabricated modules, building blocks and pipe culverts, were deployed in May 1994. The building blocks module consisted of 10 150x200x2000 mm concrete culvert units arranged in pyramidal configuration of 5,4,3,2, and 1 layers. AR modules designed to provide more surface area and crevices were fabricate in segments at a maximum of 1.47 KN/unit to ease transport and deployment.After attaining its concrete strength, the units were manually hauled from fabrication site to a bamboo raft and towed by a motorized bance to the deployment site. The raft have a rectangular opening at the middle where the units were manually lowered, one at a time, useing rope and pully. Local community divers using surface-supplied are compressors assemled the modules in block and in pyramidal configuration. A relatively flat boottom, 18 m water deep, and the presence of exploited coral reefs in the area were among the factors considered in setting up the ARs.
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Bagarinao, Teodora; Taki, Yasuhiko (Ichthyological Society of Japan, 1986)Long-term (1975-1977) collections of larval and juvelnile fish were made from 1) onshore, a sandy beach flanked by a coral terrace and a river mouth, and 2) 500m offshore in 30 m deep water in Pandan Bay. About 70 species ...
Small-scale fisheries and yield of coral reefs in Malalison Island, west central Philippines: implications for a community-based coastal fishery resource management. Amar, E.C.; Cheong, R.M.T.; Cheong, M.V.T. (National Taiwan Ocean University; Corvallis, Oregon: International Institute of Fisheries Economics and Trade, 1995)
Primavera, Jurgenne H. (Japan International Research Center for Agricultural Sciences, 2000)To integrate production of crabs and shrimp with mangrove conservation, the SEAFDEC Aquaculture Department initiated studies on Mangrove-Friendly Aquaculture (MFA). Culture pens and ponds in old growth and newly regenerating ...