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首页> 外文期刊>Boreal Environment Research >Recruitment of bloom-forming cyanobacteria from winter/spring populations in the Baltic Sea verified by a mesocosm approach.
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Recruitment of bloom-forming cyanobacteria from winter/spring populations in the Baltic Sea verified by a mesocosm approach.

机译：通过中观方法验证了波罗的海冬季/春季种群中形成花序的蓝细菌的募集。

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Despite intense public and scientific interest in cyanobacterial blooms in the Baltic Sea, theirorigin and generation has not been well investigated. The aim of this work was to elucidatethe overwintering strategies of Aphanizomenon, Dolichospermum and Nodularia. The presenceof undetectably small start populations of these three genera in March 2009 and partlyalso in May 2006 was concluded from their growth in mesocosms. The results suggestedthat Aphanizomenon originates primarily from the surface-water population, whereas Dolichospermumfrom benthic akinetes. Nodularia was of particular interest as the potential ofits extremely small winter/spring population to form large summer blooms was still underdebate. The results verified that Nodularia does not develop in waters taken from below thehalocline, but most likely overwinters in the upper water layers. This small planktonic startpopulation alone, and not the benthic akinetes, may give rise to the summer blooms.
机译：尽管公众和科学界对波罗的海的蓝藻水华产生了浓厚的兴趣，但尚未对其起源和产生进行过充分的研究。这项工作的目的是阐明Aphanizomenon，Dolichospermum和Nodularia的越冬策略。这三个属的起始种群数量很少，分别在2009年3月和2006年5月出现，这是由于它们在中胚层中的生长所致。结果表明，Aphanizomenon主要起源于地表水种群，而Dolichospermum来自底栖动物。结节病特别令人感兴趣，因为其极少的冬季/春季种群形成大面积夏季开花的潜力仍然不足。结果证实，从盐碱岩下抽取的水域中未出现结节菌，但最有可能在上水层越冬。仅这个小的浮游生物种群，而不是底栖的net鱼，可能会引起夏季开花。

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