Senckenberg am Meer, German Center for Marine Biodiversity Research, Wilhelmshaven, Germany; Center of Natural History, Universität Hamburg, Hamburg, Germany; Carl von Ossietzky Universität Oldenburg, Oldenburg, Germany.
Senckenberg am Meer, German Center for Marine Biodiversity Research, Wilhelmshaven, Germany; Carl von Ossietzky Universität Oldenburg, Oldenburg, Germany.
Mar Environ Res. 2019 Oct;151:104776. doi: 10.1016/j.marenvres.2019.104776. Epub 2019 Aug 25.
Active hydrothermal vents are small-scale habitats hosting endemic fauna in a well-defined zonation around fluid effluents. The fauna of inactive hydrothermal vents and its relation to active vents and non-vent area is poorly known. Characterizing inactive areas is prerequisite to establish protected areas, especially in the context of potential seafloor massive sulfide mining, which targets inactive sites. Hierarchical clustering and Distance-based Redundancy Analysis revealed five assemblages, with significantly associated substrate types: I) active hydrothermal vent, II) periphery, III) inactive hydrothermal vent and IV) soft- and V) hard-substrate within the non-vent area. For the first time, a unique inactive faunal assemblage could be identified within the hydrothermally extinct inactive Gauss field and on adjacent hard substrates. The spatial separation from the active Edmond field and periphery and the non-vent area indicates the existence of an inactive assemblage.
热液喷口是小型栖息地，在流体排放物周围形成明确的分区，容纳特有动物群。人们对非活动热液喷口的动物群及其与活动喷口和非喷口区域的关系知之甚少。描述非活动区域是建立保护区的前提条件，特别是在潜在的海底块状硫化物开采的背景下，该开采以非活动地点为目标。层次聚类和基于距离的冗余分析揭示了五个组合，与显著相关的基质类型：I）活动热液喷口、II）周边、III）非活动热液喷口和 IV）软基质和 V）非喷口区域的硬基质。这是首次在热液灭绝的高斯场和相邻硬基质内识别出独特的非活动动物群。与活动的埃德蒙场和周边以及非喷口区域的空间分离表明存在非活动组合。
