낙동강 수계 댐호의 부착규조 및 영양단계 평가 = Epilithic diatoms and trophic states of dam lakes in the Naktong River system

다국어 초록 (Multilingual Abstract)

Epilithiic diatoms and trophic states of Lake Andong, Imha, Yungchun, Unmun, Hapchun and Chinyang in the Naktong River system were studied. Collections for the study were made at the six dam lakes in September, 1994. Total 121 taxa, classified into 104 species, 16 varieties and 1 forma belong to 30 genera were found. Ten taxa were new to Korea. Achnanthes minutissima was a dominant species at all the Lakes studied exclusive of Navicula seminulum at only Lake Yungchun. The values of LTSI (Lake Trophic State Index), used for evaluation on the lake trophic state in the present study, were 5.8 at Lake Andong, 8.3 at Lake Imha, 8.0 at Lake Yungchun, 7.7 at Lake Unmun, 5.2 at Lake Hapchun and 6.4 at Lake Chyunyang. In consequence, only Lake Hapchun was evaluated as a mesotrophic lake, however the other lakes were eutrophic over 5.41 of LTSI value.