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고육수 연구를 위한 화진포와 영랑호의 육수조건과 Plankton 의 현상에 관하여
수야수언 (水野壽彦),조규송 ( Mizuno Toshihiko,Kyu Song Cho ) 한국하천호수학회 1980 생태와 환경 Vol.13 No.1·2
This study was undertaken to know some conditions of the estuarines as a part of the paleolimnological studies on the brackish lakes. The brackish lakes of various sizes including the Young-rang lake and the Hwajin-po lakes studied are well developed along the coast of the East sea of Korea. It was assumed that the Young-rang lake possessed the features of the brackish lakes, because (1) a temporary thermocline exhibited, (2) it resulted in oxygen depletion below four meters and (3) the vertical distribution of chloride was also apparent. With regard to the chloride content, the amount of chloride below four meters of the Young rang lake was higher concentration (9,000mg/L) than that of the surface water, whereas the amount of chloride in both the inner lake and the outer lake of the Hwajin-po lakes was relatively high concentration(7,000mg/L). The plankton species which were found in the surface water (0∼3m) of the Young-rang lake were Alona guttata, Hexarthra mira and Mougeota sp., and the endemic species restricted to the estuarine zones were Sinocalanus tenelus, Brachionus plicatilis, Keratella cruciformis and Mollusca larvae. Except the endemic zooplankton, the neritic species such as Copepod, Oithona nana, Acartia pacifica, Tigriopus japonica, Paracalanus larvae and Polychota, and marine diatoms were abundantly found in the Hwajin-po lakes.