진동만 미더덕 양식장의 서식지적합도를 이용한 어장관리시스템 구축

Abstract

The aquaculture of Styela clava is only conducted in Korea, especially Jindong Bay. Styela clava was regarded as a troublesome competitor for grown in aquaculture farm. Suspended culture of Styela clava was initiated in 2001 and the annual production reached 15,084 M/T, but declined to 1,412 M/T in 2005. Annual production was increased slightly to 2,484 M/T in 2012 but the production is lower than the beginning yield. Scope for Growth(SFG) can indicate interrelationships between environment and organism growth index in aquaculture. GIS-based site selection can be available by the concept of SFG, and fishery management system can be constructed for the sustainable production. As a result of the assessment of habitat suitability, Jindong Bay's SFG value ranges 0.054∼0.57 J/day and Styela clava farm's SFG value ranges 0.054∼0.57 J/day, either. The correlation between Styela clava farm's SFG and the actual production has a good result, as R = 0.786, P < 0.05. The construction of fishery management system using habitat suitability index ensures the reasonable site selection and the sustainable production in aquaculture farm. It introduces an objective method for the interrelationships between the environmental variation and the organism growth. Consequently, it can promote the decision making practices for the sustainable fishery management.