首页> 外文期刊>Journal of Freshwater Ecology >Nitrogen-stimulated growth of algae in surface-water samples collected from freshwater kettle ponds of Cape Cod National Seashore (Massachusetts, USA)
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Nitrogen-stimulated growth of algae in surface-water samples collected from freshwater kettle ponds of Cape Cod National Seashore (Massachusetts, USA)

机译:从鳕鱼角国家海岸的淡水水壶池塘收集的地表水样品中,氮刺激藻类的生长(美国马萨诸塞州)

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摘要

Nutrient enrichment bioassays, coinciding with analyses of surface water nutrients, nitrogen (N) and phosphorus (P), were conducted using water samples collected from 10 freshwater lakes (kettle ponds) of Cape Cod National Seashore (CCNS) (Massachusetts, USA). Algal biomass developing in each treatment was assessed by quantifying chlorophyll a . In July and August, strong responses of a unicellular green alga, Chlamydomonas sp ., to N?+?P and N enrichments were observed in all water samples, while P alone (or control treatments) had virtually no stimulatory effect. The results indicate that N inputs to these waterbodies can fuel the growth of certain species and should therefore be considered a management priority for CCNS.
机译:使用从鳕鱼角国家海岸(CCNS)(美国马萨诸塞州)的10个淡水湖(水壶池塘)收集的水样进行了营养富集生物测定,与地表水养分,氮(N)和磷(P)的分析相吻合。通过量化叶绿素a来评估在每种处理中发育的藻类生物量。在七月和八月,在所有水样中观察到单细胞绿藻衣藻对N + + P和N富集的强烈反应,而单独使用P(或对照处理)几乎没有刺激作用。结果表明,向这些水体提供的氮投入可促进某些物种的生长,因此应将其视为CCNS的管理重点。

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