Primary productivity and chlorophyll a in Prydz Bay and its mouth in Antarctica during the austral summer of 1999/2000

摘要

The investigation of phytoplankton standing stock, euphotic layer and photosynthesis rate were carried out in 19-27 of January, 2000 at three longitudinal sections(70°30'E, 73°30'E and 75°30'E.) The results showed that the high value of chlrophyll a concentration was in inshore bay, polynya and the continental slope of the investigated sea area. At various investigated stations, average chlorphyll a concentration at sub-surface layer(25 m)was higher than that at surface layer; its concentration at the deeper layers of over 50 m decreased with increasing depth.