South East Fishery (SEF) Ecosystem Study 1993-1996: Sediment Size Data

This record describes the sediment size data collected as part of the 1993-1996 South East Fishery Ecosystem Study undertaken by CSIRO Division of Fisheries. Sediment samples were collected using a sediment sampler aboard a benthic sled deployed on 4 cruises of FRV "Southern Surveyor" on seven transects across the continental shelf in eastern Bass Strait, south-west Victoria, and south-west NSW waters. Samples were collected in July 1993 (cruise SS 05/93), August 1994 (cruise SS 05/94), April 1996 (cruise SS 02/96) and November 1996 (cruise SS 06/96). In addition to the broad-scale, transect-based surveys described above, representatives of 4 separate habitat types (Big Gutter, Gabo Reef, Big Horsehoe and Broken Reef) were sampled more intensively. For the purpose of this study, sediment data were used primarily to characterise habitat types by particle size as well as to complement other habitat data derived from acoustic measurements. In addition, portions of the sediment samples were used for pigment and stable isotope analysis (see separate metadata records).

本数据集记录了由澳大利亚联邦科学与工业研究组织（Commonwealth Scientific and Industrial Research Organisation，CSIRO）渔业部开展的1993-1996年东南渔业生态系统研究中采集的沉积物粒度数据。沉积物样本通过安装在底栖雪橇上的沉积物采样器采集，采集工作由"Southern Surveyor"号渔业研究船（FRV，Fisheries Research Vessel）执行，共开展4次科考航次，在维多利亚州西南部、新南威尔士州西南部水域以及巴斯海峡东部的大陆架区域布设7条断面进行采样。样本采集时间分别为1993年7月（航次SS 05/93）、1994年8月（航次SS 05/94）、1996年4月（航次SS 02/96）与1996年11月（航次SS 06/96）。除上述基于断面的大范围调查外，研究人员还针对4种典型生境类型（Big Gutter、Gabo Reef、Big Horsehoe与Broken Reef）开展了加密采样。本研究中，沉积物数据主要用于基于粒径特征刻画生境类型，同时也用于补充由声学测量获取的其他生境数据。此外，部分沉积物样本还被用于色素与稳定同位素分析（详见独立的元数据记录）。