Fishing Activity for UK Vessels 15m and over 2014 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, equal to 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 and over 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.

本数据集提供了英国超过15米长的商业渔船在指定日历年内捕鱼活动的摘要。这些摘要已被分类为具有潜在影响海底、环境或生物群的相关综合渔具组。位置数据来自GPS导出的船舶监控数据。在最高分辨率下，即0.05度子矩形，以下数据项分别按渔具类型汇总：船用挖泥船、陷阱（未指定）、笼子、刺网和缠结网（未指定）、刺网（未指定）、流刺网、固定刺网（锚定）、拖网、徒手捕鱼、机械化挖泥船、手线和杆线（手动操作）、延绳钓（未指定）、固定延绳钓、钩线和线（未指定）、抓虾拖网（未指定）、底层抓虾拖网、中层抓虾拖网、双拖网、有囊网的拖网、底层双拖网、中层双拖网、丹麦围网、对围网、苏格兰围网、其他未指定的围网网具、曳绳钓、 nephrops 拖网、其他未指定的中层拖网、中层虾拖网、其他未指定的拖网：
1. 仅用于内部信息请求，使用每种渔具类型的15米及以上渔船数量，
2. 钓鱼时间（分钟），
3. 自2011年数据起，作业强度（千瓦时，通过将每个VMS报告关联的时间（小时）与船舶在活动时的发动机功率相乘计算得出），
4. 使用渔具类型的渔获活重鱼量（吨），
5. 使用渔具类型的渔获活重鱼价值（英镑）。