Abstract:

This paper reports the results of isolation and identification of the pigments from ice algae in the adjacent waters (62°12.5′S, 62°14.5′S -58°57′W,58°53′W) of the Great Wall Station, Antarctica during the icing period (from June 1988--December 1988) and studies on the compostion and seasonal variations of the pigments of ice algae in that area as well as their role in marine ecosystems.The results indicate that 15 kinds of ice algal pigments have been isolated, 13 kinds been identified. They are respectively:carotene, pheophytin a, chlorophyll-a, -b, -c,lutein, fucoxanthin, chlorophyllide-a, violaxanthin, pheophorbide-a,chlorophyllin-a, derivative of chlorophyll-c(diadinoxanthin)and two kinds of unidentified pigments. There are distinct seasonal variations of ice algae pigments in that area.