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首页> 外文期刊>Fisheries Oceanography >The use of at-sea-sampling data to dissociate environmental variability in Norway lobster (Nephrops norvegicus) catches to improve resource exploitation efficiency within the Skagerrak/Kattegat trawl fishery
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The use of at-sea-sampling data to dissociate environmental variability in Norway lobster (Nephrops norvegicus) catches to improve resource exploitation efficiency within the Skagerrak/Kattegat trawl fishery

机译：使用at-Sea-Suppling数据在挪威龙虾（Nephrops Norvegicus）中解散环境变异，以提高Skagerrak / Kattegat Trawl渔业内的资源开发效率

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Research into the influence of environmental variables on the behaviour of Norway lobster (Nephrops norvegicus), and hence catch rates, dates back to the 1960s (e.g., Hoglund and Dybern, Diurnal and seasonal variations in the catch-composition of Nephrops norvegicus (L.) at the Swedish west coast. ICES CM 1965/I46; Simpson, Variations in the catches of Nephrops norvegicus at different times of day and night. Rapport et Proes-verbaux des Reunions Conseil permanent international pour 1'Exploration de la Mer 156:186). However, the use of fishery-dependent data in identifying influential factors is relatively limited and only includes a number of papers on a limited dataset (e.g., Redant and De Clark, Diurnal variations in CPUE and length composition of the catches in a Nephrops directed fishery in the Central North Sea. ICES CM 1984/K:3; Maynou and Sarda, Influence of environmental factors on commercial trawl catches of Nephrops norvegicus (L.). ICES J. Mar. Sci. 58:1318). Here, we aimed to dissociate environmental variability in Norway lobster catches to improve resource exploitation efficiency within the Skagerrak and Kattegat trawl fisheries by utilising data collected as part of an extensive at-sea-sampling programme spanning 16years. Catch rates were modelled using Generalized Additive Mixed Models (GAMMs) and considered a range of response variables, including depth, temperature, current speed, season, moon phase and time of day. The results obtained herein showed that time of day, season, depth, temperature, year, trawl type and location all significantly affect catch rates of Nephrops.
机译：环境变量对挪威龙虾（Nephrops Norvegicus）行为的影响，从而捕获率，返回20世纪60年代（例如，Hoglund和Dybern，尼弗雷氏肠道捕捞组成的季节和季节变化（L. ）在瑞典西海岸。ICE CM 1965 / I46; SIMPSON，在一天晚上不同时期的尼弗罗伯诺威奇群体的变化。RAPPORT et Proes-Vellaux des Reunions Conseil永久国际倒1'exploriation de la mer 156：186 ）。然而，在识别有影响因素中使用渔业依赖数据是相对有限的，并且仅包括有限数据集的许多文件（例如，redant和de Clark，CPUE的CPE和L长度组成的尼肾上的渔业的长度变化在中央北海。ICE CM 1984 / k：3; Maynou和Sarda，环境因素对尼弗里布（L.）商业拖网捕获的影响。ICES J. Mar. SCI。58：1318）。在这里，我们旨在解散挪威龙虾的环境变异，通过利用作为跨越16年的广泛海洋采样计划的一部分，通过收集的数据来提高Skagerrak和Kattegat Trawl渔业的资源开发效率。使用广义添加剂混合模型（GAMMS）进行建模捕获率，并考虑了一系列响应变量，包括深度，温度，当前速度，季节，月亮相位和一天的时间。本文获得的结果表明，一天的时间，季节，深度，温度，年，拖网类型和位置都显着影响了肾的捕获率。

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