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首页> 外文期刊>Ocean & coastal management >Measuring congruence between electronic monitoring and logbook data in Australian Commonwealth longline and gillnet fisheries
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Measuring congruence between electronic monitoring and logbook data in Australian Commonwealth longline and gillnet fisheries

机译：衡量澳大利亚联邦延绳钓网和刺网渔业中电子监控与日志数据之间的一致性

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摘要

Electronic monitoring (EM) has the capacity to collect fisheries-dependent data to support fisheries management decision-making. Following successful pilot studies, EM was introduced into several Australian Commonwealth fisheries in 2015, including the Eastern Tuna and Billfish Fishery (ETBF) and the Gillnet, Hook and Trap (GHAT) sector of the Southern and Eastern Scalefish and Shark Fishery (SESSF). We compared two years of EM analyst and fisher-reported logbook data from the ETBF and GHAT sector to examine the level of congruence in reporting of both retained and discarded catch and protected species interactions. In general, congruence between EM analyst and fisher-reported logbook data in both the ETBF and GHAT sector was higher for retained than for discarded catch, and the ETBF had a higher level of data equivalency than the GHAT sector. Fishery-wide estimates of congruence, however, concealed a large amount of variation among individual and groups of species. EM analyst and fisher-reported logbook data were highly congruent for some species (e.g. tunas, swordfish and gummy shark), but for others there were clear taxonomic (e.g. escolar and rudderfish), identification (e.g. sharks, marlins) and reporting (e.g. draughtboard shark and elephantfish) issues, which reduced overall congruence. There was evidence of increased congruence through time, particularly for discarded by catch species in the GHAT sector, due presumably to increased manager feedback and communication with fishers on their logbook reporting. While EM analyst and fisher-reported logbook interactions with protected species in the GHAT sector were equivalent, this was not the case for species other than seabirds in the ETBF. In the ETBF, a greater number of interactions were reported by fishers in their logbooks, suggesting a need to modify existing or install additional EM technology to improve on-board vision for the EM analyst. It is important to review the performance of any integrated EM system through time to ensure it is fulfilling the data requirements for the fishery and meeting the overall objectives of the program.
机译：电子监测（EM）有能力收集与渔业有关的数据，以支持渔业管理决策。在成功进行了试点研究之后，2015年将EM引入了澳大利亚的多个联邦渔业，包括东部金枪鱼和比目鱼渔业（ETBF）以及南部和东部鳞鱼和鲨鱼渔业（SESSF）的刺网，钩和陷阱（GHAT）部门。我们比较了两年的EM分析师和ETBF和GHAT部门的渔民报告日志数据，以检查报告保留和丢弃渔获物和受保护物种之间相互作用的一致性水平。一般而言，保留时间的ETEM和GHAT部门中EM分析师和渔民报告的日志数据之间的一致性高于丢弃渔获物，并且ETBF的数据等效性水平高于GHAT部门。但是，全渔业对一致性的估计掩盖了个体和群体之间的大量差异。新兴市场分析师和渔民报告的日志数据在某些物种（例如金枪鱼，箭鱼和橡皮鲨）中高度一致，但对于另一些物种，则具有清晰的分类学（例如e鱼和fish鱼），标识（例如鲨鱼，马林鱼）和报告（例如浮标板）鲨鱼和象鱼）问题，从而降低了整体一致性。有证据表明，随着时间的流逝，一致性不断提高，尤其是在GHAT部门中被捕捞物种丢弃的一致性，这可能是由于管理者反馈的增加以及与渔民在日志记录上的交流。虽然EM分析师和渔民报告的日志记录与GHAT部门中受保护物种的相互作用是等效的，但ETBF中除海鸟以外的物种并非如此。在ETBF中，渔民在其日志中报告了更多的交互作用，这表明需要修改现有技术或安装其他EM技术，以改善EM分析人员的船上视野。重要的是要随时检查任何集成式EM系统的性能，以确保其满足渔业数据要求并满足计划的总体目标。

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