ABARES Fisheries Status Report map data: Southern and Eastern Scalefish and Shark Fishery (SESSF), Commonwealth Trawl Sector, Squid Catch (SCSQ): fishing intensity and maximum area fished, annual map data for 2010 to 2020

This dataset presents maps of fishing intensity and maximum area fished of ocean waters showing the catch of squid by the Southern and Eastern Scalefish and Shark Fishery Commonwealth Trawl Sector (SCSQ). The data were prepared as part of the annual ABARES Fishery Status Report series, which provides an independent evaluation of the biological and economic status of fish stocks managed solely or jointly by the Australian Government. The data were produced by ABARES from data supplied by the Australian Fisheries Management Authority (AFMA). The data are presented annually by calendar year (1 January to 31 December) to coincide with the Southern Squid Fishery fishing season. The data are polygon vector format, stored in an ESRI file geodatabase, prepared using ArcGIS Desktop ArcMap version 10.6. Fishing intensity is defined as the total catch of squid (only), in kilograms, within a given Southern Squid Jig Fishery fishing season (calendar year), divided by the total area fished in square kilometres. Fishing intensity is presented as classified data in low, medium and high intensity classes. The data attributes include the class, the range of values in the class and the unit of measure. The classification used may vary from year to year, depending on a range of environmental and economic factors. Maximum area fished is defined as the maximum area within which fishing occurred during a given fishing season as polygon cells of one degree of longitude by one degree of latitude (approximately 111 kilometres x 111 kilometres). A cell is included if any fishing activity occurred anywhere within that one degree by one degree cell. Note that cells included in this dataset may also partially cover land. The data supplied by AFMA were filtered to remove activity by fewer than five boats within the area of analysis in order to conform with AFMA’s Information Disclosure Policy (https://www.afma.gov.au/about/fisheries-management-policies/information-disclosure-fisheries-management-paper).

本数据集呈现了东南硬骨鱼与鲨鱼渔业联邦拖网分区（SCSQ）内南方鱿鱼钓渔业的鱿鱼捕捞作业强度与最大捕捞海域分布图。本数据集隶属于澳大利亚农业与资源经济科学局（ABARES）年度渔业状况报告系列，该系列旨在对澳大利亚政府单独或联合管理的鱼类种群的生物与经济状况开展独立评估。数据由澳大利亚渔业管理局（AFMA）提供原始数据，经ABARES加工生成。数据集按日历年（1月1日至12月31日）按年度发布，以匹配南方鱿鱼钓渔业的捕捞季。数据采用多边形矢量格式，存储于ESRI文件地理数据库中，使用ArcGIS Desktop ArcMap 10.6版本制作。捕捞强度定义为某一捕捞季（对应日历年）内仅鱿鱼的总捕捞量（单位：千克）除以总捕捞海域面积（单位：平方千米）。捕捞强度以低、中、高三个等级的分类数据形式呈现，数据属性包含等级、等级内的数值区间与计量单位。每年采用的分类标准可能因一系列环境与经济因素有所调整。最大捕捞海域定义为某一捕捞季内发生捕捞作业的最大海域范围，以经度1度×纬度1度（约111千米×111千米）的多边形网格单元表示。只要该1度×1度网格单元内任意区域存在捕捞作业，即被纳入统计。需注意，本数据集包含的网格单元可能部分覆盖陆地。根据AFMA的信息披露政策（https://www.afma.gov.au/about/fisheries-management-policies/information-disclosure-fisheries-management-paper），为符合相关政策要求，AFMA提供的原始数据已经过过滤，移除了分析区域内作业船只少于5艘的捕捞活动。