文章基本信息

标题：Macrofauna communities of the Dogger Bank (central North Sea) in the late 1990s: spatial distribution, species composition and trophic structure
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作者：Gunther Wieking ; Ingrid Kröncke
期刊名称：Helgoland Marine Research
印刷版ISSN：1438-3888
出版年度：2003
卷号：57
期号：1
页码：34-46
DOI：10.1007/s10152-002-0130-2
出版社：BioMed Central
摘要：Macrofauna samples were taken in May 1996–1998 at 28 stations on the Dogger Bank (central North Sea) to describe species composition, spatial distribution and trophic structure of the macrofaunal communities. In general, five communities could be distinguished depending on the influence of different water masses, depth, type of sediment and food availability. Except for those species which feed in the sediment, macrofauna communities did not show any correlation to the measured sediment variables. In fact, macrofauna communities of the Dogger Bank were mainly structured by lateral food supply via frontal systems. This was indicated by the dominance of interface feeders foraging in the benthic boundary layer, which are able to switch from surface deposit to suspension feeding depending on flow conditions. The importance of sandlickers in the shallowest parts of the Dogger Bank hints at an important contribution of benthic primary production to the nutritional and energetic needs of the benthic community.
关键词：Macrofauna communities;Benthos;Trophic structure;Total organic carbon (TOC);North Sea;Dogger Bank