Based on some data obtained in the Sixth Chinese Antarctic Research Expedition during 1989/1990, the relationship between the distribution of nutrient and that Of productivity in the Prydz Bay was discussed. The resul...Based on some data obtained in the Sixth Chinese Antarctic Research Expedition during 1989/1990, the relationship between the distribution of nutrient and that Of productivity in the Prydz Bay was discussed. The results show that outside the Emery Ice Shelf there exists an expanse of warm and salty waters, where within the euphotic layer the content of nutrient is relatively low, the saturation of dissolved oxygen is up to 120% and the content of chlorophyll a is more than 1. 00 mg/m3, all this indicating that the Prydz Bay may be considered as a high preductivity area in Antarctica. The vertical distribution of chemical elements showed a strong spring layer like the thermocline, but at 350 m layer abnormal vertical nutrient distribution turned up, even though there was no distinct halocline. Finally the various factors causing this abnormaly were discussed.展开更多
基金南北极资源环境考察与评价专项"南极周边海域海洋地球物理考察"(编号:Chin ARE 2016-01-03)中国博士后科学基金"南极西罗斯海新生代岩浆活动时空分布及其指示意义"(编号:17090041)国家海洋局第二海洋研究所专项资金项目"由罗斯海岩浆活动时空分布研究西南极裂谷系统特征"(编号:14260-10)联合资助~~
文摘Based on some data obtained in the Sixth Chinese Antarctic Research Expedition during 1989/1990, the relationship between the distribution of nutrient and that Of productivity in the Prydz Bay was discussed. The results show that outside the Emery Ice Shelf there exists an expanse of warm and salty waters, where within the euphotic layer the content of nutrient is relatively low, the saturation of dissolved oxygen is up to 120% and the content of chlorophyll a is more than 1. 00 mg/m3, all this indicating that the Prydz Bay may be considered as a high preductivity area in Antarctica. The vertical distribution of chemical elements showed a strong spring layer like the thermocline, but at 350 m layer abnormal vertical nutrient distribution turned up, even though there was no distinct halocline. Finally the various factors causing this abnormaly were discussed.
