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首页> 外文期刊>Current Science: A Fortnightly Journal of Research >Noctiluca blooms in Port Blair Bay, Andamans
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Noctiluca blooms in Port Blair Bay, Andamans

机译：夜光藻在安达曼群岛的布莱尔港湾绽放

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摘要

Moderate to intense blooms of the dinoflagellate Noctiluca scintillans occurred in Port Blair Bay, Andamans during June and July of 2000. The blooms occurred thrice in succession after short periods of waning. The bloom that came about second in the sequence, between 11 and 20 July 2000, gave us an opportunity to investigate the changes in water characteristics associated with the event. Results indicate that variations in dissolved oxygen concentration were fairly small, whilst nutrient levels and plankton compositions were dramatically altered. Primarily, the bloom led to exclusion of other phytoplankton, also limiting zooplankton prevalence to essentially copepods. The bloom resulted in exceptionally high levels of chlorophyll c, which exceeded levels of chlorophyll a by several folds. Nutrient levels were characterized by decrease of nitrate during active periods of the bloom, and sharp increase in phosphate, particularly during the waning phase.
机译：2000年6月至7月，安达曼州布莱尔港的中鞭毛夜光藻出现了中度至强烈的花期。短时间的衰落后，连续连续三次出现了花期。在2000年7月11日至20日之间的第二次开花，使我们有机会研究与该事件有关的水质变化。结果表明，溶解氧浓度的变化很小，而营养水平和浮游生物的组成却发生了巨大变化。最初，水华导致其他浮游植物的排斥，也将浮游动物的流行限制在基本上为co足类。水华导致异常高的叶绿素c水平，比叶绿素a水平高出几倍。营养水平的特征是在花期活跃期硝酸盐减少，而磷酸盐急剧增加，特别是在衰落期。

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