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1991年春秋两季,在厦门的临海陆基水池中进行了两次海洋生态系围隔实验,对海水中可溶性锰与赤潮发生规律大小的关系作探索性的研究。实验时人为地引发了中肋骨条藻(Skeletonema costatum,春)和颤藻(Oscillatoria,秋)的赤潮。实验用的厦门西海域海水,其可溶性锰含量在3～4μg/dm~3的水平时,就足够藻类形成赤潮的增殖需求。若含量升高,在低于80μg/dm~3情况下,过量的可溶性锰不影响浮游植物的数量和群落结构。但处于mg/dm~3含量水平的可溶性锰,会影响浮游植物群落结构,浮游植物的数量也受到一定程度的抑制。
In the spring and autumn of 1991, two marine ecosystem experiments were carried out in the coastal sea-based water pool of Xiamen, and the relationship between the content of soluble manganese and the regularity of red tide in seawater was explored. Experiments were conducted to artificially induce the red tide of Skeletonema costatum (Spring) and Oscillatoria (Autumn). The sea water in the western Xiamen of Xiamen Experimental Sea Area is enough for algae to form red tide when the soluble manganese content is 3 ~ 4μg / dm ~ 3. If the content is increased, under the condition of less than 80μg / dm ~ 3, the excessive soluble manganese does not affect the number of phytoplankton and community structure. However, soluble manganese at the level of mg / dm ~ 3 would affect phytoplankton community structure and the amount of phytoplankton was also inhibited to a certain extent.