Tropical Prawn Project Prawn Trawl Data c1975-1979 (Redfield Data)

Prawn trawl data from Weipa, East and South East Gulf of Carpentaria in the late 1970s. The main objective was to ascertain the distribution and abundance of each of the main commercial and some non-commercial penaeid species. The main data collection was performed off the Judy B with cruises repeated every month for 13 months; some other vessels were involved at different times (Kalinda, Raptis Pearl, Sprightly). Trawling was conducted at night and consisting of 30 minute shots. All prawns were sorted by species (general codes used) and sex, but no weights were recorded. Catch rates were expressed as number of prawns caught per net per hour. There were more than four sampling plans.

本数据集涵盖1970年代末采自韦帕（Weipa）及卡奔塔利亚湾（Gulf of Carpentaria）东部与东南部的对虾拖网捕捞数据。本研究的核心目标为明确主要商业性及部分非商业性对虾科（Penaeidae）物种的分布范围与种群丰度。核心数据采集工作由“朱迪B号（Judy B）”主导，连续13个月每月开展一次巡航作业；其余时段另有卡琳达号（Kalinda）、拉普蒂斯珍珠号（Raptis Pearl）及斯普赖特利号（Sprightly）等船舶参与采样。拖网作业均于夜间进行，单次拖网时长为30分钟。所有捕获的对虾均按物种（采用通用分类编码）及性别完成分拣，但未记录个体重量。渔获率以每网每小时捕获的对虾数量作为统计单位。本次研究共采用四种以上采样方案。