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KMID : 0380120010240040245
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Korean Journal of Ecology
2001 Volume.24 No. 4 p.245 ~ p.251
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Marine Ecosystem on Dokdo and Ullungdo Islands
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Kim Ki-Tai
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Abstract
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Dokdo is a volcanic island, and its formative geological age took place at the end of the Pliocene Epoch. Dokdo is located at 131˚52´33˝ East longitude, and 37˚14´18˝ North latitude, and is constituted of 87 islands. The total area of Dokdo is 0.186 ㎢ and the length of its coastline is 4 ㎞.Dokdo is a treasury of fish resources where many varieties of fish including squid and Alaska pollack live in abundance of greatest importance. Dokdo is a forward fishery base. Ullu¨ng island is located at 37˚27´ ∼37˚33´ North latitude and 130˚47´∼130˚56´ East longitude. The area of Ullu¨ng is 72.92 ㎢ and the length of its seashore is 44.21 ㎞. The total marine product of Ullu¨ngdo(1995) is 9,066 tons (M/T). The largest is squid, 8,900 tons. For the sea area of the depths near the Ullu¨ngdo coast, that of 50m or less is 2,477 ha, and that of 50-100m is 1,471ha. This fact tells us that there is no extensive area of a very shallow sea, and that it is directly connected to the deep sea. Ullu¨ngdo is a treasury of marine bioresources with rich and varied fishes including squid and Alaska Pollack and many others. Presently there is a sovereignty dispute over Dokdo between Korea and Japan. Since A.D.512, Dokdo has been a part of territory of Korea. Dokdo is a part of Kyungsang-Bukdo, Ullu¨ng-gun, Ullu¨ng-up, Do-dong in the Korean administrative district division system. Japan strenuously claims sovereignty for significant economic reasons, including fishery rights, and has adhered to a contradictory position that "Dokdo is Japanese land" since Japan incorporated Dokdo into Japanese territory in 1905.
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