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1996 년 제주도에 나타난 대형저서동물의 대량폐사 물리해양학적 요인의 역할
서해림(Hae Lip Suh),조양기(Yang Ki Cho),서호영(Ho Young Soh),김대환(Dae Hwan Kim) 한국환경생물학회 1999 환경생물 : 환경생물학회지 Vol.17 No.2
An unprecedented mass mortality of commercially important macrobenthic animals, including Haliotis discus discus, H. diversicolor, Batilus cornutus, Sticopus japonicus and Hemicentrotus pulcherrimus, occurred off the west coast of Cheju Island in summer of 1996. Phytoplankton blooms were absent along the coast. The appearances of the surface low-salinity water (SLSW) off the coast of Cheju Island preceded the mass mortality, leading to speculation that the low-salinity stress may have a crucial role in the mass mortality. Since there was no heavy rain for the same period, the precipitation was not a possible explanation for the decrease of salinity. Physical oceanographic data taken by NFRDI(1997) clearly indicated that the SLSW was present in the area between China and Cheju Island in August 1996. This is most likely due to a freshwater supply resulting from the existence of large river runoff. Evidence of the current and the distance between the Uangtz River and Cheju Island also supports the hypothesis that source of the SLSW was the freshwater originated from the Yangtz River runoff.