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首页> 外文期刊>ICES Journal of Marine Science >History of the Spanish demersal fishery in the Atlantic and Mediterranean Seas
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History of the Spanish demersal fishery in the Atlantic and Mediterranean Seas

机译：西班牙在大西洋和地中海深海渔业的历史

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摘要

Long fisheries time series allow the review of baselines and inform our knowledge of past events that have conditioned the recent history of the stocks. In this study, we investigated trends in fisheries landings data for the most representative Atlantic and Mediterranean demersal fisheries off the Spanish Iberian Peninsula and the Balearic Islands (1933-1986). The aim was to analyse the evolution of demersal species exploitation and detect changes in landings and fishing tactics. Ten species were selected, which included teleosts, crustaceans, and cephalopods. Results indicated a decrease in Landings Per Unit of Capacity (LPUC) in six of the species examined. While in the Atlantic the process of substitution or incorporation of new species to the fisheries occurs progressively, in the Mediterranean this incorporation occurs simultaneously for many of the species. Four main fishing tactics (landing pattern obtained from the classification analysis of landings per species) were identified. Geographically nearby and connected regions developed similar fishing tactics to each other, and also changed over time. While the fleets from isolated regions were more specialized, and only carrying out one fishing tactic during the study period. Improvements in LPUC with the implementation of new technology and legislative and management measures were not observed.
机译：漫长的渔业时间序列使我们可以回顾基准并告知我们有关过去种群历史的事件的知识。在这项研究中，我们调查了西班牙伊比利亚半岛和巴利阿里群岛（1933-1986年）附近最具代表性的大西洋和地中海深海渔业的渔业着陆数据趋势。目的是分析水下物种开发的演变，并发现登陆和捕鱼策略的变化。选择了十种，其中包括硬骨鱼，甲壳类和头足类。结果表明，在所检查的六个物种中，每单位容量着陆量（LPUC）减少。在大西洋，新品种向渔业的替代或纳入过程逐渐发生，而在地中海，许多物种的合并同时发生。确定了四种主要的捕捞策略（从每个物种的着陆量分类分析中获得的着陆方式）。在地理上邻近和相连的地区彼此发展了相似的捕鱼策略，并且随着时间的推移也发生了变化。来自偏远地区的船队更加专业化，在研究期间仅执行一种捕鱼策略。未观察到随着新技术的实施以及立法和管理措施的改进，LPUC有所改善。

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