文章基本信息

标题：The fate of faecal pellets in the North Sea
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作者：Peter Martens ; Michael Krause
期刊名称：Helgoland Marine Research
印刷版ISSN：1438-3888
出版年度：1990
卷号：44
期号：1
页码：9-19
DOI：10.1007/BF02365427
出版社：BioMed Central
摘要：During an intensive survey in May/June 1986, 129 stations in the North Sea were examined in different water depths with respect to several hydrographical parameters. The relations of planktonic faecal pellets to food (chl-a) and producers (zooplankton-wet weight) as well as to temperature, salinity and water depth were investigated. The amount of faecal pellets was positively correlated with chl-a and zooplankton. The length of the faecal pellets was negatively correlated with water depth indicating a degradation during sinking. Hardly any formed faecal material was detectable under 100 m water depth. The ratio of pellets to zooplankton was positively correlated to chlorophyll and influenced by daytime, indicating diel variations in pellet production. It is assumed that in summer most of the planktonic faecal material is disintegrated in the upper water layer and the role of faeces in sedimentation is minor.
关键词：Waste Water;Chlorophyll;Sedimentation;Water Management;Water Pollution