Discard mortality for the giant Pacific octopus in the Gulf of Alaska, 2014-15

This data set contains observations and measurements on the condition, weight, and survivorship of North Pacific giant octopus that were caught as bycatch in commercial fishing operations utilizing pot gear to target Pacific cod. The native file format is a Microsoft Office Access 2007 database containing the information from octopus samples. For archive, the Access database was converted to 4 CSV files, 2 TXT files, and 1 PDF file: nprb-1203-growth-data-table.csv, nprb-1203-mortality-data-table.csv, nprb-1203-raw-feeding-data-table.csv, nprb-1203-raw-weight-data-table.csv, nprb-1203-database-properties.txt, nprb-1203-data-dictionary.txt, and nprb-1203-database-relationships.pdf. These octopus were captured during commercial fishing operations that occurred during three fishing seasons from January 2014 through February 2015. These commercial fishing operations occurred in the central Gulf of Alaska in either Shelikof Strait or Marmot Bay. Data collected included information on octopus condition, size, sex, and injury presence. Other data collected included the location of capture, water depth, octopus air exposure time, water temperature, and gear soak time.

本数据集包含北太平洋巨型章鱼（North Pacific giant octopus）的健康状态、体重及存活情况的观测与测量数据，这些个体均为在以太平洋鳕鱼（Pacific cod）为目标捕捞物种、采用笼壶渔具（pot gear）开展的商业捕捞作业中所获的兼捕渔获物。该数据集的原生文件格式为Microsoft Office Access 2007数据库，其中存储了章鱼样本的相关信息。为便于归档，该Access数据库被转换为4个CSV文件、2个TXT文件及1个PDF文件，具体包括：nprb-1203-growth-data-table.csv、nprb-1203-mortality-data-table.csv、nprb-1203-raw-feeding-data-table.csv、nprb-1203-raw-weight-data-table.csv、nprb-1203-database-properties.txt、nprb-1203-data-dictionary.txt 以及 nprb-1203-database-relationships.pdf。本次捕捞作业的开展时段为2014年1月至2015年2月间的三个捕捞季，作业海域位于阿拉斯加湾（Gulf of Alaska）中部的谢利科夫海峡（Shelikof Strait）或马莫特湾（Marmot Bay）。本次收集的数据涵盖章鱼的健康状态、体型、性别及受伤状况，此外还记录了捕捞位置、作业水深、章鱼暴露于空气的时长、海水温度以及渔具浸泡时长等相关信息。