대암호와 사연호의 환경요인과 식물성플랑크톤상 = Environmental Factors and Phytoplankton Flora in the Sayon and Daeam Reservoirs

다국어 초록 (Multilingual Abstract)

The purpose of this study is to investigate freshwater algae flora of Sayon and Daeam Reservoirs in Ulsan (Kyungnam Province) from January to December 1994, Bacillariophyceae was investigated and classified by Simonsen`s classification system and the others by Smith`s. 327 taxa of the freshwater algae were examined from Sayon and Daeam Reservoirs. These taxa are composed of 8classes, 18orders, 8suborders, 36 familes, 88genera, 248species, 1subspesies, 63varieties, 11forma and 4unidentified species. The composition of algae in Sayon and Daeam Reservoirs is characterized by the higher persentages of Bacillariophyceae and Chlorophyceae. Concentrations of Chlorophyll a varied in the range of 0.2 and 164.7㎍/ℓ in the surface water. The highest concentration of Chlorophyll a which are observed in the surface water of both site are in Jun and July. Bacillarophyceae significantly appears in the lower water temperature of winter and Chlorophyceae in the higher water temperature of summer in the various species.