CSIRO, Jack Mackerel (Trachurus declivis) surveys, Tasman Sea, Australia (1978)

The data were obtained from 3 surveys in the Tasman Sea (NSW and Victoria coasts) in 1978. Data were obtained from acoustic and trawl surveys of Jack mackerel (Trachurus declivis) and other demersal and pelagic fish. Length, sex, numbers, weight and target signal strength were determined. This data has been republished (2022-09-05 with additional details of each occurrence where they can be one of three types: catch composition (counts per taxa and optional aggregated weights by trawl event), catch measurements (length and/or weight) of individual taxa and/or catch specimens and their stored location. The occurrence type is recorded in occurrenceremarks.

本数据集源自1978年在塔斯曼海（新南威尔士州与维多利亚州沿岸海域）开展的3项调查。数据采集自针对竹荚鱼（Trachurus declivis）及其他底栖、中上层鱼类的声学调查与拖网调查。本次调查测定了样本的体长、性别、个体数量、体重以及目标信号强度。本数据集已于2022年9月5日重新发布，新增了每条样本记录的补充信息，样本记录共分为三类：渔获组成数据（按分类单元统计的个体数量，以及拖网作业事件可选的总重量）、单个分类单元的渔获测量数据（体长和/或体重），以及渔获样本及其存储位置。样本记录类型将在occurrenceremarks字段中予以记录。