Aquafin CRC Salmon Project - Process Study 1- Sediment Trap Survey - Huon Estuary - April 2005

Process Study 1 was undertaken between 12-14 April 2005 in the Huon Estuary offshore from Hideaway Bay. During this Process Study, two sediment traps were deployed at each of two sites (near sites P3 and P4 from the spatial survey) on the bottom for 24 hours.Prior to the deployment of the traps surface sediment samples were collected with a benthic grab from each site. Each sediment trap consisted of three collection tubes, material from each tube was filtered on 47 mm GFF filters, with several filters required to filter all of the particualte matter from each tube. Combined filters from each of two tubes labeled A and B (typically 3 filters for each tube) were extracted for lipid analysis. Tube C was used either for isotopes or Fauna indent.

过程研究1于2005年4月12日至14日在胡恩河口（Huon Estuary）隐居湾（Hideaway Bay）外侧的近海海域实施。本次过程研究中，研究人员在两个站位（对应空间调查中的P3与P4站位附近区域）的海底各部署2台沉积物捕获器（sediment trap），布设时长为24小时。在部署沉积物捕获器之前，研究人员使用底栖采泥器（benthic grab）从每个站位采集表层沉积物样品。每台沉积物捕获器均配备3根收集管，每根收集管内的采集物均通过47 mm GFF滤膜进行过滤，且需使用多张滤膜才能完成单根收集管内全部颗粒物的过滤操作。将标记为A与B的两根收集管对应的滤膜（每根管通常对应3张滤膜）合并后，提取滤膜上的脂类物质用于脂类分析。标记为C的收集管则用于同位素分析或动物群鉴定。