初析赤潮成因研究的围隔实验结果──几个理化因子与硅藻赤潮的关系  

PRELIMINARY STUDY ON RED TIDE FORMATION BASED ON RESULTS FROM ENCLOSED EXPERIMENTAL ECOSYSTEMS──THE RELATIONSHIP BETWEEN DIATOM RED TIDE WITH SOME PHYSICAL AND CHEMICAL FACTORS

作　　者：林昱[1] 庄栋法[1] 陈孝麟[1] 唐森铭[1] 

机构地区：[1]国家海洋局第三海洋研究所,厦门361005

出　　处：《海洋与湖沼》1994年第2期139-145,共7页Oceanologia Et Limnologia Sinica

基　　金：国家自然科学基金!9389008号

摘　　要：从1990年以来，在国家海洋局第三海洋研究所的临海陆基水池中，应用围隔生态系实验技术对赤潮成因作了几次探索性的研究。针对4次人为引发赤潮的中尺度围隔实验的部分结果，结合已报道的厦门西海域赤潮过程，分析几个主要理化因子（水体稳定性、无机氮、无机磷、可溶性锰、可溶性铁和维生素B12）与硅藻赤潮发生及其规模的关系。This paper reports the results from a series of Marine Enclosed Ecosystem. Experiments on the mechanism of red tide occurrence have conducted in the land-basedtank at the Third Institute of Oceanography, SOA, since 1990.Some results of artificially induced red tide in 4 mesocosm experiments, reported natural red tide processes in Western Xiamen Harbour, the relationship betweenthe occurrence and distribution scale of diatom red tide, and relevant physical andchemical factors, are analysised and discussed in this paper. Present some results aresummarized below.There was little influences on diatom red tide occurrence by stirring the watercolumn. Close relationship existed between nutrient concentrations and red tide formation in especially the concentration of active phosphates, which might be a inducing and controlling factor for diatom bloom in Western Xiamen Harbour. The (3-4)μg/L dissolved Mn, in the water was enough to support the phytoplanktonic proliferation. The unusual increase of dissolved Fe concentration in this region mightstimulate the occurrence of diatom red tide. Vitamin B12 can promote the divisionrate of some diatom, and so induce red tide occurrence or enlarging the distributionscale.

关 键 词：赤潮 硅藻 围隔生态系 理化因子 

分 类 号：X55[环境科学与工程—环境工程]