Colonisation of hard substrata along a channel system in the deep Greenland Sea
Colonisation of hard substrata along a channel system in the deep Greenland Sea
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格陵兰海深水道系统沿线硬质基质的殖民化
DOI：
10.1007/s00300-010-0825-9
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发表时间：
2010
期刊：
影响因子：
1.7
通讯作者：
T. Soltwedel
中科院分区：
文献类型：
--
作者：
Miriam Schulz;M. Bergmann;K. Juterzenka;T. Soltwedel
2000年，通过对格陵兰西部深层阿登卡普尔峡谷沿着的摄影调查，研究了表层底栖巨型动物在硬底质（HS）中的定居。在水深2，700 - 3，200米的7个样带中，坠石、沉木和其他底层（包括人为物质）的密度普遍较低（范围：2-11 HS km−1）。总体而言，30种不同的分类群和形态型被发现或与HS相关。虽然海葵Bathyphellia margaritacea和节肢动物Ascorhynchus abyssi占主导地位的动物群的基板表面上，一个球形的形态不确定的分类起源特征组合边缘与HS。群落分析显示，在大陆隆起附近和深海附近的动物群模式存在差异，但不同区域之间的多样性和均匀性没有显著差异。然而，我们的结论是，坠石和其他硬底质在海底作为殖民岛屿，从而普遍增加小规模的栖息地多样性在极地深海环境。
The colonisation of hard substrata (HS) by epibenthic megafauna was studied by photographic surveys along the Ardencaple Canyon in the deep western Greenland Sea in 2000. Seven transects at 2,700–3,200 m water depth showed generally low densities of dropstones, sunken wood, and other substrata including anthropogenic material (range: 2–11 HS km−1). Overall, 30 different taxa and morphotypes were found on or associated with HS. While the sea anemone Bathyphellia margaritacea and the pantopod Ascorhynchus abyssi dominated the fauna on the substrate surfaces, a ball-shaped morphotype of uncertain taxonomic origin characterised assemblages marginally associated with HS. Community analysis revealed differences in faunal patterns near the continental rise and towards the deep sea, but diversity and evenness did not differ significantly between the various regions. However, we conclude that dropstones and other hard substrata at the seafloor serve as colonisation islands and thereby generally increase small-scale habitat diversity in polar deep-sea environments.
DOI：
10.1111/j.1439-0485.2010.00359.x
发表时间：
2010-03-01
影响因子：
1.1
作者：
Buhl-Mortensen, Lene;Vanreusel, Ann;Raes, Maarten
通讯作者：
Raes, Maarten