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Position: Home > Articles > Effects of suspended dredging sediment on growth of 2 species of phytoplankton in the Changjiang estuary Journal of Fishery Sciences of China 1999 (1) 33-36

长江口疏浚弃土悬沙对2种浮游植物生长的影响

作  者:
徐兆礼;易翠萍;沈新强;曹直;王云龙;陈亚瞿
单  位:
中国水产科学研究院长江口渔业生态重点实验室;上海水产大学
关键词:
长江;河口;悬沙;浮游植物;生长;抑制
摘  要:
长江口疏浚弃土悬沙对微绿球藻(Nannochloropsis oculata)和牟氏角毛藻(Chaetoceros muelleri)的生长有一定的抑制作用。试验结果表明,当水体中含沙量持续96 h 达到3 g/L 时,藻类生长速率降低20%~30%。但当疏浚作业停止,悬沙将迅速沉淀,水体变清,藻类生长可恢复正常。
译  名:
Effects of suspended dredging sediment on growth of 2 species of phytoplankton in the Changjiang estuary
作  者:
Xu Zhaoli Yi Cuiping Cao Zhi Wang Yunlong Chen Yaqu East China Sea Fisheries Research Institute,Key Lab of Fisheries Ecology of Changjiang River Estuary,Chinese Academy of Fishery sciences,Shanghai 200090 Shen Xinqing Shanghai Fisheries University,Shanghai 200090
关键词:
Changjiang River;;estuary;;suspended sediment;;phytoplankton;;growth;;inhibiting
摘  要:
Experimental results show that suspended dredging sediment inhibits the growth of Nannochloropsis oculata and Chaetoceros muelleri.When sediment amount is lower than 3 g/L and lasting 96 h,the growing rate of the algae reduces by 20%~30%.Once the dredging operation was stopped,the suspended sediment would sink and the water become clear quickly,then the algae growth would recover and turn to normal status gradually.

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