RMT Trawl catch from the 1990/91 V6 AAMBER2 voyage

Collected by RMT trawls during ANARE 1990/91 Voyage 6 AAMBER2 survey. 62 routine sampling sites were taken within the area 67 degrees to 78 degrees East, 65 degrees South to the Antarctic coastline, in a grid arrangement with approximately 30 nautical miles in latitude and longitude between sites. At each site the 0-200m water layer was sampled by a downward oblique haul with a rectangular midwater trawl RMT 1+8 net. Ten horizontal tows were also made with the RMT 1+8 to identify krill/zooplankton targets detected by the echosounders.

本数据集采集自ANARE（澳大利亚国家南极研究探险队）1990/91年度第6航次AAMBER2科考调查的RMT拖网作业。调查区域覆盖东经67°至78°、南纬65°至南极海岸线海域，共布设62个常规采样站位，站位间经纬度间距约30海里，采用网格布站方案。每个站位均使用矩形中层拖网RMT 1+8网对0-200米水层开展下行斜拖采样；同时借助该RMT 1+8网完成10次水平拖网作业，用于识别回声测深仪探测到的磷虾与浮游动物目标。