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夏季南黄海主要环境因子对微微型浮游生物分布影响

DOI: 10.3969/j.issn.0253-4193.2013.04.021, PP. 176-187

Keywords: 微微型浮游生物,聚球藻,微微型真核藻,异养细菌,南黄海

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Abstract:

利用流式细胞技术,获取南黄海夏季微微型浮游生物丰度数据,分析了其组成和分布规律,并探讨了主要的影响因子。2011年夏季,聚球藻、微微型真核藻、异养细菌在整个调查海区的平均丰度分别在1×104、1×103、1×106cells/mL数量级上。在全调查海区,聚球藻和微微型真核藻受温度和光照的限制明显,主要集中分布在温跃层及其以上水层;而营养盐的限制较小,它们的影响只有在沿岸流影响明显的西部海区才能较为明显的体现出来。结果表明在该海域浓度较高的营养盐能够促进微微型浮游生物的生长,但不是其限制因素;异养细菌受环境因子限制较小,即使在深海也保持着较高的丰度。

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