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首页> 外文期刊>ICES Journal of Marine Science >Mapping inshore fishing activity using aerial, land, and vessel-based sighting information
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Mapping inshore fishing activity using aerial, land, and vessel-based sighting information

机译:使用空中,陆地和船只瞄准信息绘制近海捕捞活动图

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摘要

Information on the distribution and intensity of inshore fishing activity is needed to inform marine spatial planning and to assess fisheries interactions with the environment and other industries. Although fishing vessels under 15 m (overall length) account for 98.4% (2011 value) by the number of the European fleet, information on inshore fishing activity in Europe is very limited as there is no statutory satellite monitoring of smaller vessels (<15 m length before 2012, <12 m thereafter). Here, we develop, present, and apply a method which uses sightings-per-unit-effort (SPUE) estimates calculated from fisheries enforcement data to describe the distribution and intensity of inshore fishing activity off the coasts of England and Wales. For the larger inshore vessels, the SPUE estimates of activity were validated with vessel monitoring system (VMS) data and showed good agreement at the scale of analysis. Fishing activity estimates from SPUE are presented with an assessment of uncertainty, to account for spatial differences in enforcement activity. Our estimates of the distribution and intensity of inshore fishing activity and will complement estimates of offshore fishing activity based on VMS.
机译:需要有关近海捕捞活动的分布和强度的信息,以为海洋空间规划提供信息,并评估渔业与环境和其他产业的相互作用。尽管15 m以下(总长)以下的渔船占欧洲船队总数的98.4%(2011年价值),但由于没有对较小船只(<15 m 2012年之前的长度,此后<12 m)。在这里,我们开发,介绍和应用一种方法,该方法使用根据渔业执法数据计算的单位努力观测值(SPUE)估计值来描述英格兰和威尔士沿海近海捕捞活动的分布和强度。对于较大的近海船舶,SPUE的活动估计值已通过船舶监测系统(VMS)数据进行了验证,并在分析规模上显示出良好的一致性。提出了SPUE的捕鱼活动估计值,并带有不确定性评估,以说明执法活动中的空间差异。我们对近海捕捞活动的分布和强度的估计,将补充基于VMS的近海捕捞活动的估计。

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