Economic value of tideland as place for recreational clam digging, a case study at Kajishima Island [Japan]
2004
Tamaki, Y. (National Research Inst. of Fisheries Science, Yokohama (Japan))
Abstract Clam digging produces large revenue for fishery cooperative associations and produces a large additional income to fishermen. Although many urban residents enjoy clam digging, an evaluation of the economic value has not been carried out until now. Therefore, I estimated the recreational benefits of clam digging by the travel cost method by using the embarkation lists of the ferryboats for recreational clam digging visitors at Kajishima Island, Kira Town. The results totaling 35.65 million yen were calculated as the recreational benefits of Kajishima Island's surroundings of about 6 ha from the clam digging bed. This amount with Manila clam fishing amount of the Kira Fishery Cooperative Association of 38 million yen. It is evident that urban residents gained a large benefit from recreational clam digging. Mitigation by artificial tidal land is necessary for the tidal land lost by land reclamation as a future policy.
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