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

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. 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'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=TT200801

TT 01/2008调查是SS 01/2008的后续调查，旨在对塔斯曼尼亚州东南部海域的优质活珊瑚、亚化石珊瑚及化石珊瑚床开展采样，并借助深潜遥控无人潜水器（Remotely Operated Vehicle, ROV）“杰森号”（Jason），在最大4000米水深范围内对相关群落进行记录与采样。本次调查在东南联邦海洋保护区（South-east Commonwealth Marine Reserves）内及周边区域完成16次下潜；ROV“杰森号”累计水下作业时长近400小时，拍摄超36000张照片及300小时的深海礁体视频，采集1000余份生物标本，其中多数为科学界新发现物种。本次调查的核心目标为采集化石珊瑚（杯珊瑚属（Desmophyllum sp.））、描述700至4000米水深的栖息环境，并在胡恩联邦海洋保护区（Huon CMR）设立两个长期监测站点（沉降板）。调查区域涵盖被称为塔斯曼断裂带的近乎垂直地壳切片，该区域水深从约2000米骤降至4000米以上。“杰森号”被用于采集视频、高清静态拼接图像，以及化石珊瑚和无脊椎动物群落的选择性样本。本次航次的报告、元数据及其他相关数据可通过以下链接获取：https://www.marine.csiro.au/data/trawler/survey_details.cfm?survey=TT200801