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首页> 外文期刊>ICES Journal of Marine Science >Landings profiles and potential metiers in Greek set longliners
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Landings profiles and potential metiers in Greek set longliners

机译：希腊语设置延线的着陆情况和潜在等级

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摘要

A very large number (>14 000) of generally small vessels operate as longliners in Greek seas. The aim of this study was to identify potential set longline metiers, based on a large sample of landings records from all over Greece. Landings data from set longliners between 2002 and 2006, collected from several ports in the Aegean and East Ionian Sea, were used. The landings profiles were grouped using a two-step procedure, the first involving factorial analysis of the log-transformed landing profiles, and the second a classification of the factorial coordinates (hierarchical agglomerative clustering). In all, 13 metiers were identified in the Aegean Sea and 7 in the Ionian Sea. The most important metiers identified were those targeting white sea bream (Diplodus sargus), hake (Merluccius merluccius), common sea bream (Pagrus pagrus), and common pandora (Pagellus erythrinus), and mixed metiers. Varying spatial (within the Aegean and Ionian Seas) and seasonal patterns were evident for the metiers identified, indicating that fisher motivation to engage in a specific metier varies both spatially and temporally.
机译：在希腊海域，有大量（> 14000）小型船舶作为延绳钓船。这项研究的目的是基于来自希腊各地的大量着陆记录来确定潜在的延绳钓延绳钓等级。使用了2002年至2006年间从爱琴海和东爱奥尼亚海的多个港口收集来的延绳钓的着陆数据。使用两步程序对着陆剖面进行分组，第一步包括对数转换后的着陆剖面的阶乘分析，第二步包括阶乘坐标的分类（层次集聚）。在爱琴海和爱奥尼亚海总共确定了13个等级。确定的最重要的分类是针对白鲷（Diplodus sargus），鳕鱼（Merluccius merluccius），普通鲷（Pagrus pagrus）和普通潘多拉（Pagellus erythrinus）以及混合分类的分类。对于所确定的鱼类，明显的空间变化（在爱琴海和爱奥尼亚海之内）和季节变化是明显的，这表明渔民从事特定鱼类的动力在空间和时间上都变化。

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