휴전선 이남에서의 담수어의 (淡水魚) 지리적 분포에 관하여 = On the Geographical Distribution of Fresh - water Fishes South of DMZ in Korea

다국어 초록 (Multilingual Abstract)

1. By studing the microdistribution of fresh-water fishes south of DMZ in Korea during a period of eight years from 1966 through 1973 (See Fig. 1), the author has arrived at a conclusion different from those of other scholars who have studied the geographical distribution patterns of fresh-water fishes in Korea. 2. Of 131 species of fresh-water fish found south of DMZ, 84 species of pure freshwater fishes should be the standard for determining the geographical distribution regions of freshwater fishes in there. 3. Both ecological and historical approach should be undertaken in the analysis of the geographical distribution patterns of fresh-water fishes, but the scholars who studied the geographical distribution regions of fresh-water fishes in Korea, almost invariably neglected the historical approach. 4. The Taebaeg Mountain Range is considered as a barrier to divide the rivers on the east and west sides of the mountain range since the beginning of the Third Era so that the difference of the freshwator fish fauna found in either side took place. therefore, the area of the south of DMZ should bedivided into the West-South Korea Subdistrict containing many species of the fresh-water fishes originated from Chinese Mainland and the East Korea Subdistrict having few species originated from Siberia, North Pacific Ocean and Chinese Mainland as shown in Table 1. 5. Due to piracy, the majority of the fresh-water fishes originated from Chinese Mainland found on the east side of the Taebaeg Mountain Range may have moved from the west side. 6. The author does not recognize that the west side of Korea of the Taebaeg Mountain Range in divided into three subdistricts; Central Korea, West Korea and South Korea Subdistrict by Mori (1936). The distribution patterns of the fresh-water fishes of West and South Korea may have been determined when Korea, Japan and China were connected by land. The isolation of the present each river in Korea also many have taken place during over a period of gradual disapprence the glacial age by rising of sea water level. Many endemic species of fresh-water fishes found in West South Korea Subdistrict also may have appeared during over the same period.