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首页> 外文期刊>ICES Journal of Marine Science >Using interview-based recall surveys to estimate cod Gadus morhua and eel Anguilla anguilla harvest in Danish recreational fishing
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Using interview-based recall surveys to estimate cod Gadus morhua and eel Anguilla anguilla harvest in Danish recreational fishing

机译：使用基于访谈的召回调查来估计丹麦休闲垂钓中鳕鳕和印度鳗的捕捞量

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摘要

Marine recreational fishing is a popular outdoor activity in Denmark, practised by both anglers and passive gear fishers. However, the impact on the targeted stocks is unknown, so to estimate the 2009 harvest of cod Gadus morhua and eel Anguilla anguilla, two separate interview-based surveys were initiated and carried out in 2009/2010. The first recall survey exclusively targeted fishers who had been issued with the mandatory Danish fishing licence. The second survey was designed to identify those who fish without a licence. It was estimated that 1231 t of cod were harvested in 2009, corresponding to 4.8% of the entire Danish cod yield (recreational harvest + commercial landings). Area differences were found, and, in certain areas, the recreational harvest of cod accounted for more than 30% of the total yield. The majority (81%) of the recreational cod harvest was taken by anglers. Eels, however, are almost exclusively caught with passive gear (fykenets) and a total of 104 t year~(-1) was harvested, which corresponds to 19% of the entire Danish eel yield. The inclusion of the harvest taken by fishers without a valid licence was important and added almost 20% to the estimated harvest.
机译：海洋休闲钓鱼是丹麦的一种流行的户外活动，钓鱼者和被动渔具都在进行这种活动。但是，对目标种群的影响尚不清楚，因此，为了估计2009年鳕鳕和淡水鳗的收成，2009/2010年启动并进行了两次单独的基于访谈的调查。首次召回调查仅针对已获得丹麦强制性捕鱼许可证的渔民。第二项调查旨在识别没有许可证捕鱼的人。据估计，2009年鳕鱼的收获量为1231吨，相当于丹麦整个鳕鱼产量（娱乐性收获+商业登陆）的4.8％。发现了面积差异，在某些地区，鳕鱼的休闲收获占总产量的30％以上。休闲鳕鱼收获的大部分（81％）是由垂钓者捕获的。然而，鳗鱼几乎完全被被动渔具捕获（凤尾鱼），共收获了104吨（-1）年，约占丹麦鳗鱼总产量的19％。将没有有效执照的渔民收成的收成包括在内很重要，这使估计收成增加了近20％。

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