Fishing activity for UK vessels 15m and over 2012 Web Mapping Service (WMS)

This data set provides summaries of fishing activity for UK commercial fishing vessels of 15m and over in length that are deemed to have been fishing within a specified calendar year. These summaries have been categorised into aggregated gear groups that have relevance to their potential impact on the seabed, environment, or biota. Positional data have been extracted from GPS-derived Vessel Monitoring Data. At the highest resolution, 0.05 degree sub-rectangle, the following data items are provided aggregated between vessels using each of these gear types separately: Boat dredges, traps (not specified), pots, gillnets and entangling nets (not specified), gillnets (not specified), driftnets, set gillnets (anchored), trammel nets, hand fishing, mechanized dredges, hand lines and pole-lines (hand-operated), long lines (not specified), set long lines, hooks and lines (not specified), otter trawls (not specified), otter trawls bottom, otter trawls midwater, otter twin trawls, with purse lines (purse seines), pair trawls bottom, pair trawls midwater, Danish seines, pair seines, Scottish seines, seine nets not elsewhere specified, beam trawls, nephrops trawls, midwater trawls not elsewhere specified, shrimp trawls midwater, other trawls not specified): 1. For internal requests for information only, the number of 15m vessels involved using each gear type, 2. Time fishing (minutes), 3. From 2011 data onwards, effort in KW Hours (calculated by multiplying the time associated with each VMS report in hours by the engine power of the vessel concerned at the time of the activity) 4. Quantity (tonnes) of live weight fish landed with gear type, 5. Value (sterling) of live weight fish landed with gear type.本数据集涵盖指定日历年内被认定开展捕捞作业的长度15米及以上的英国商业捕捞渔船的捕捞活动汇总信息。此类汇总数据已依据捕捞装备对海底、生态环境及生物群落的潜在影响，归类至聚合装备组别中。位置数据提取自全球定位系统（GPS）衍生的船舶监控数据。 在最高分辨率（0.05度子矩形网格）下，针对使用每种捕捞装备类型的渔船，汇总提供以下数据项： 小艇式拖耙、未指定类型的诱捕笼、罐笼、未指定类型的刺网与缠网、未指定类型的刺网、流刺网、定置刺网（锚定型）、三层刺网、手工捕捞、机械化拖耙、手绳与竿绳（手动操作型）、未指定类型的延绳钓、定置延绳钓、未指定类型的钩绳钓具、未指定类型的单拖网、底拖单拖网、中水层单拖网、双帆双拖网、带围绳的围网（purse seines）、底拖对拖网、中水层对拖网、丹麦式围网、对拖围网、苏格兰式围网、未列明的其他围网、桁拖网、挪威海螯虾拖网、未列明的其他中水层拖网、中水层虾拖网、未指定类型的其他拖网： 1. 仅用于内部信息查询：使用对应装备类型的15米及以上渔船数量； 2. 捕捞时长（单位：分钟）； 3. 2011年及之后的数据包含作业功率时长（单位：千瓦·时，计算方式为每份船舶监控系统（VMS）报告的作业时长（小时）乘以对应作业时刻渔船的主机功率）； 4. 使用对应装备类型上岸的活鱼重量（单位：吨）； 5. 使用对应装备类型上岸的活鱼产值（单位：英镑）。