Epifauna of the Sea of Japan collected via a new epibenthic sledge equipped with camera and environmental sensor systems
Epifauna of the Sea of Japan collected via a new epibenthic sledge equipped with camera and environmental sensor systems
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DOI：
10.1016/j.dsr2.2012.07.039
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发表时间：
2013-02-01
影响因子：
3
通讯作者：
Wuerzberg, L.
中科院分区：
文献类型：
--
作者：
Brandt, A.;Elsner, N.;Wuerzberg, L.
介绍了一种新设计的照相机-底栖动物雪橇（C-EBS）的动物数据。这些是在俄罗斯-德国联合考察SoJaBio（日本海生物多样性研究）期间在R.V. Akademik Lavrentyev上从460至3660米深度的四个断面（A-D）收集的。大、巨型动物共采集244,531个个体，其中Malacostraca（80,851个）、Polychaeta（36,253个）和ophiuro总目（34,004个）数量最多。其中，等足目为优势分类群（27,931），其次为片足目（21,403）、Cumacea（13,971）和tanaidacia（10,830）。Mysidacea （1581 id.）最不常见。双壳类、片足类、Cumacea和Mysidacea以及底栖小动物线虫在较浅的站点数量较多，随着深度的增加而减少。而多毛纲、等足纲和tanaidacoa的丰度则随深度增加而增加。在日本海深海只取样了一种等足类，但丰度非常高：Eurycope spinifrons Gurjanova， 1933（无足目：无足科）。在较浅的坡点棘皮动物较多。以蛇虫类居多，其次是海螺类，棘虫类和小行星类数量较少，主要分布在A和b样带较浅的站点，仅记录到2163种花虫，且主要分布在较低的斜坡上。介绍了一种新型C-EBS的技术设计。在温度绝缘的超低温和超低温采样器旁边，它配备了静态和视频摄像机，可以提供海底地形和大型动物发生的信息。此外，Aanderaa CTD和SEAGUARD RCM还可以收集物理参数，如近底部氧成分、温度和电导率。(C) 2012 Elsevier Ltd.版权所有。
Faunistic data from a newly designed camera-epibenthic sledge (C-EBS) are presented. These were collected during the joint Russian-German expedition SoJaBio (Sea of Japan Biodiversity Studies) on board the R.V. Akademik Lavrentyev from four transects (A-D) between 460 and 3660 m depth. In total, 244,531 macro- and megafaunal individuals were sampled with the classes Malacostraca (80,851 individuals), Polychaeta (36,253 id.) and Ophiuroidea (34,004 id.) being most abundant. Within the Malacostraca, Peracarida (75,716 id.) were most abundant and within these, the Isopoda were the dominant taxon (27,931 id.), followed by Amphipoda (21,403 ind.), Cumacea (13,971 id.) and Tanaidacea (10,830 ind.). Mysidacea (1581 id.) were least frequent. Bivalvia, Amphipoda, Cumacea and Mysidacea as well as inbenthic meiofaunal Nematoda occurred in higher numbers at the shallower stations and their numbers decreased with increasing depth. Polychaeta, Isopoda, and Tanaidacea, on the contrary, increased in abundance with increasing depth. Only one isopod species was sampled at abyssal depths in the Sea of Japan but at very high abundance: Eurycope spinifrons Gurjanova, 1933 (Asellota: Munnopsidae). Echinoderms occurred frequently at the shallower slope stations. Ophiuroids were dominating, followed by holothurians, and echinoids and asteroids which occurred in lower numbers and primarily at the shallower stations of transects A and B. Only 2163 individual anthozoans were recorded and these were mostly confined to the lower slope. The technical design of a new C-EBS is described. Next to temperature-insulated epi- and suprabenthic samplers, it is equipped with still and video cameras, which deliver information on seabed topography and megafaunal occurrence. Furthermore, Aanderaa CTD and SEAGUARD RCM allow for collection of physical parameters, such as near bottom oxygen composition, temperature and conductivity. (C) 2012 Elsevier Ltd. All rights reserved.