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首页> 外文期刊>ICES Journal of Marine Science >Cetacean-fishery interactions in Galicia (NW Spain): results and management implications of a face-to-face interview survey of local fishers
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Cetacean-fishery interactions in Galicia (NW Spain): results and management implications of a face-to-face interview survey of local fishers

机译：加利西亚的鲸类与渔业的相互作用（西班牙西北部）：对当地渔民进行面对面访谈调查的结果和管理意义

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摘要

Galicia (NW Spain) is an important fishing region with a high potential for cetacean - fishery interactions. Cetacean depredation on catch and damage to fishing gear can potentially lead to substantial economic loss for fishers, while cetacean bycatch raises conservation concerns. With the aim of gathering information on the types and scale of interactions and of suggesting possible management strategies, we conducted face-to-face interviews with fishers in local fishing harbours, in particular to identify specific problematic interactions and to quantify the level of economic loss and bycatch rates associated with these interactions. We found that cetacean-fishery interactions are frequent, although damage to catch and fishing gear by cetaceans was mostly reported as small. Nevertheless, substantial economic loss can result from common bottlenose dolphins (Tursiops truncatus) damaging coastal gillnets and from short-beaked common dolphins (Delphinus delphis) scattering fish in purse-seine fisheries. Cetacean bycatch mortality was reported to be highest for trawls and set gillnets, and probably exceeds sustainable levels for local common and bottlenose dolphin populations. Although interview data may be biased due to the perceptions of interviewees, and therefore should be interpreted with care, the methodology allowed us to cover multiple sites and fisheries within a reasonable time frame. Minimizing cetacean - fishery interactions requires the implementation of case-specific management strategies with the active participation of fishers. For set gillnet and purse-seine fisheries, the use of acoustic deterrent devices (pingers) may prevent cetaceans from approaching and getting trapped in the nets. For trawl fisheries, where bycatch appears to be particularly high at night in water depths of 100 - 300 m, possible solutions include the implementation of time/area closures and the relocation of some fishing effort to deeper waters.
机译：加利西亚（西班牙西北部）是重要的捕捞区域，在鲸类与渔业的互动中潜力很大。鲸类对捕捞的掠夺和对渔具的破坏可能会给渔民造成巨大的经济损失，而鲸类的兼捕则引起人们对保护的关注。为了收集有关相互作用的类型和规模的信息并提出可能的管理策略，我们与当地渔港的渔民进行了面对面的访谈，特别是确定了特定的有问题的相互作用并量化了经济损失的程度以及与这些互动相关的兼捕率。我们发现，鲸类与渔业的相互作用是经常发生的，尽管据报道大多数鲸类对捕捞和渔具的损害很小。但是，普通的宽吻海豚（Tursiops truncatus）破坏沿海刺网和短喙普通海豚（Delphinus delphis）散布在围网渔业中的鱼类，可能造成重大的经济损失。据报道，拖网和刺网的鲸类副产品捕获死亡率最高，对于当地普通和宽吻海豚种群而言，可能超过可持续水平。尽管访谈数据可能因受访者的看法而有所偏差，因此应谨慎解释，但该方法使我们能够在合理的时间内涵盖多个地点和渔业。尽量减少鲸类与渔业的互动，需要在渔民的积极参与下实施针对具体案例的管理策略。对于固定刺网和围网渔业，使用声学威慑装置（ping子）可防止鲸类动物接近并陷入网中。对于拖网渔业来说，夜间在100-300 m的水深中副渔获物特别高，可能的解决方案包括实行时间/区域封锁以及将一些捕捞努力转移到更深的水域。

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  • 来源
    《ICES Journal of Marine Science》 |2014年第3期|604-617|共14页
  • 作者

    Sabine Goetz; Fiona L. Read; M. Begona Santos; C. Pita; Graham J. Pierce;

  • 作者单位

    Centro de Estudos do ambiente e do mar (CESAM), Universidade de Aveiro, Campus Universitario de Santiago, 3810-193 Aveiro, Portugal,Centro Oceanografico de Vigo, Instituto Espanol de Oceanografia (IEO), Subida a Radio Faro 50, 36390 Vigo (Pontevedra), Spain;

    Centro Oceanografico de Vigo, Instituto Espanol de Oceanografia (IEO), Subida a Radio Faro 50, 36390 Vigo (Pontevedra), Spain,Instituto de Investigaciones Marinas (CSIC), Eduardo Cabello 6, 36208 Vigo (Pontevedra), Spain;

    Centro Oceanografico de Vigo, Instituto Espanol de Oceanografia (IEO), Subida a Radio Faro 50, 36390 Vigo (Pontevedra), Spain;

    Centro de Estudos do ambiente e do mar (CESAM), Universidade de Aveiro, Campus Universitario de Santiago, 3810-193 Aveiro, Portugal,eGEO, Geography and Regional Planning Research Centre, Faculdade Ciencias Sociais e Humanas, Universidade Nova de Lisboa, Avenida de Berna 26-C, 1069-061 Lisbon, Portugal;

    Centro de Estudos do ambiente e do mar (CESAM), Universidade de Aveiro, Campus Universitario de Santiago, 3810-193 Aveiro, Portugal,School of Biological Sciences, University of Aberdeen, Zoology Building Tillydrone Avenue, Aberdeen AB24 2TZ, UK;

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  • 正文语种 eng
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  • 关键词

    cetacean -fishery interactions; depredation; dolphin bycatch; fisher participation; fishers' opinions; interview survey;

    机译：鲸类与渔业的相互作用贬低海豚兼捕渔民参与;渔民的意见;访谈调查;

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