Carnarvon Infauna Images

Geoscience Australia carried out a marine survey on Carnarvon shelf (WA) in 2008 (SOL4769) to map seabed bathymetry and characterise benthic environments through co-located sampling of surface sediments and infauna, observation of benthic habitats using underwater towed video and stills photography, and measurement of ocean tides and wave-generated currents. Data and samples were acquired using the Australian Institute of Marine Science (AIMS) Research Vessel Solander. Bathymetric mapping, sampling and video transects were completed in three survey areas that extended seaward from Ningaloo Reef to the shelf edge, including: Mandu Creek (80 sq km); Point Cloates (281 sq km), and; Gnaraloo (321 sq km). Additional bathymetric mapping (but no sampling or video) was completed between Mandu creek and Point Cloates, covering 277 sq km and north of Mandu Creek, covering 79 sq km. Two oceanographic moorings were deployed in the Point Cloates survey area. The survey also mapped and sampled an area to the northeast of the Muiron Islands covering 52 sq km.This is a folder of the images derived from benthic samples taken on cruise Sol4769 aboard RV Solander. Subfolders house images of Echinodermata, Mollusca, Polychaete, images taken of fresh material during cruise, and various categories of Crustacea, denoted by a C_ prefix in the folder name. Images of fresh material were made using a Canon EOS 40D camera on a rostrum in the wet lab of the ship. Images of preserved material were made using a Nikon Coolpix camera mounted on a Macroscope in the benthic lab at GA. These images formed the first point of reference in identifying subsequent specimens to save wear and tear on the specimens put aside as reference material.

澳大利亚地球科学局（Geoscience Australia）于2008年在西澳大利亚州（WA）卡那封陆架开展编号为SOL4769的海洋调查，旨在通过同步采集表层沉积物与底内生物样品、利用水下拖曳式视频及静态摄影观测底栖生境，以及测量海洋潮汐与波浪驱动海流，绘制海底水深图并表征底栖环境特征。本次调查所用数据与样品均由澳大利亚海洋科学研究所（Australian Institute of Marine Science, AIMS）的“索兰德号”科考船采集获取。

水深测绘、样品采集与视频样带工作在三个从宁格罗礁向陆架外缘延伸的调查区内完成，各区域面积分别为：曼杜溪（80平方千米）、克洛夫特斯角（281平方千米）以及纳拉鲁（321平方千米）。此外，调查还在曼杜溪与克洛夫特斯角之间（覆盖面积277平方千米）以及曼杜溪以北区域（覆盖面积79平方千米）开展了额外的水深测绘工作（未涉及样品采集与视频观测）。调查团队在克洛夫特斯角调查区内布设了2套海洋观测锚系。本次调查还对缪恩群岛东北部一片52平方千米的区域开展了水深测绘与样品采集工作。

本数据集文件夹包含本次“索兰德号”SOL4769航次中采集的底栖生物样品对应的图像资料。其子文件夹分别存放棘皮动物门（Echinodermata）、软体动物门（Mollusca）、多毛纲（Polychaeta）的图像，航次期间拍摄的新鲜样品实拍图像，以及以文件夹名前缀C_标识的各类甲壳纲（Crustacea）图像。其中，新鲜样品图像采用安装在船舶湿实验室载物台上的佳能EOS 40D相机拍摄；固定标本图像则采用安装在澳大利亚地球科学局底栖生物实验室宏观显微镜（Macroscope）上的尼康Coolpix相机拍摄。这些图像可作为后续标本鉴定的第一参考依据，以减少作为参考标本留存的样品的损耗。