CSIRO Survey TT200801 - ROV Jason cruise tn228: South and East of Tasmania

<p>The TT 01/2008 survey was a follow up survey to the SS 01/2008 to sample beds of high quality live, sub-fossil and fossil corals off SE Tasmania, and to document and sample the communities in depths up to 4000 m using the deep-diving Remotely operated vehicle (ROV) Jason. 16 dives were completed in or close to areas in the South-east Commonwealth Marine Reserves; the ROV Jason spent almost 400 hours underwater, took over 36000 photographs and 300 hours of video of the deep-reef, and collected over 1000 biological specimens, most new to science.</p>
<p>The focus of the survey was collection of fossil corals (Desmophyllum sp.), description of habitats at depth between 700 and 4000 m depth and establishing two long-term monitoring sites in the Huon CMR (settlement plates). It explored and sampled on the near vertical slice in the earth&#39;s crust, known as the Tasman Fracture Zone, which drops from approximately 2000 metres to over 4000 metres. Jason was used to collect video, high definition still images (mosaiced images) and selective samples of fossil corals and invertebrate fauna.
Reports, metadata and other data from this voyage are at https://www.marine.csiro.au/data/trawler/survey_details,cfm?survey&#61;TT200801</p>

<p>TT 01/2008 调查是一项针对 SS 01/2008 的后续调查，旨在对东南塔斯马尼亚海域的高品质活珊瑚、次生化石珊瑚及化石珊瑚进行采样，并利用深海遥控潜水器 Jason 对深度达 4000 米的海域生物群落进行记录和采样。在东南联邦海洋保护区及其周边区域共完成了 16 次潜水任务；Jason 潜水器在水下作业近 400 小时，拍摄了超过 36,000 张照片和 300 小时的高清视频资料，并收集了超过 1000 件生物标本，其中大部分对科学界而言均为新发现。</p><p>调查的重点在于采集化石珊瑚（Desmophyllum sp.），描述 700 至 4000 米水深处的生境，并在胡安海洋保护区（settlement plates）设立两个长期监测站点。该调查对地球上壳体近乎垂直的断面——塔斯曼断裂带进行了探测和采样，该断裂带从约 2000 米降至超过 4000 米。Jason 潜水器被用于收集视频、高清静态图像（镶嵌图像）以及化石珊瑚和无脊椎动物群的选择性样本。</p><p>此次航次的报告、元数据和其它数据可在 https://www.marine.csiro.au/data/trawler/survey_details,cfm?survey=TT200801 查阅。</p>