Estimation of potential fishery yield for Corbicula japonica in the Seomjin River, Korea

Jae Bong LEE, Young Jae SHIN1, Jong Hee LEE*, Young Min CHOI, Dong Woo LEE and Hyung Kee CHA
Fisheries Resources and Environment Division, East Sea Fisheries Research Institute, Gangneung 210-861, Korea 1Fisheries Resources Research Division, National Fisheries Research and Development Institute, Busan 619-705, Korea 2Subtropical Fisheries Rese

Corbicula japonica, belonging to Other Veneroida Family Corbiculidae, was distributed in the freshwater and brackish rivers, where was a sandy and shallow depth. Catch of C. japonica in the Seomjin River occupied at a large portion of the catch in Kyungnam Province, which was about 30% of total catch in Korea. C. japonica has little studied on biomass, scientific resources assessment and management, because of inaccurate catch report data in the Seojin River. In this study, we conducted scientific and systematic approaches under data limited situation with application of the potential fishery yield system for sustainable fisheries resources management. Estimation system of the potential fishery yield was consisted of 5 tier system. We have used to tier 1 and 2 which were demanded higher level of information than the other tiers. The potential fishery yields were estimated 77.66ton for tier 1 using commercial fishery-dependent data, and 129.82ton for tier 2 with fishery-independent survey data.

  
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