| Popis: |
Phytoplankton community composition was investigated in the Asan Bay (South) Korea. Water samples were collected monthly from five stations during January to December 2008. Phytoplankton blooms were observed in February and in August but the location of the bloom varied with the sampling time. A total of 134 phytoplankton species from seven classes (Bacillariophyceae, Chlorophyceae, Chrysophyceae, Cryptophyceae, Cyanophyceae, Dinophyceae, Euglenophyceae) were observed. Diatoms were dominant in all stations through-out the year except in summer when dinoflagellates were numerous and highly distributed within the outer bay rather than in the river mouth. Dominant and subdominant species were composed mostly of diatoms but were replaced by dinoflagellates in June and July. Results of ecological index showed that the diversity indices were increasing toward outer bay but the dominance indices showed a reverse trend. |
