作者机构:[1]Key Laboratory of Marine and Estuarine Fisheries Resources and Ecology of Ministry of Agri- culture, East China Sea Fisheries Research Institute, Chinese Academy of Fisheries Sciences, Shanghai 200090, China
相关基金:Foundation item: The China Major Research Plan of the National Natural Science Foundation of China under contract No.90511005 and "908" Project under contract No. 908-02-01-03. The author thanks Chen Yuanquan for providing the hydrological data. Gratitude to the staff from the Second Institute of Oceanography, State Oceanic Administration, He Dehua, Yang Guanmin and Yang Yuanli for their help in sample processing. Thanks Gao Qian, Chen Hun, Chen Jiajie and Wang Chenyao etc. for data processing. Special thanks to Shen Xiaomin for his insightful suggestions and great efforts in the preparation of the draft manuscript.