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首页> 外文期刊>ICES Journal of Marine Science >Modelling the recruitment of European eel (Anguilla anguilla) throughout its European range
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Modelling the recruitment of European eel (Anguilla anguilla) throughout its European range

机译：在整个欧洲范围内模拟欧洲鳗（安圭拉鳗鱼）的招聘

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摘要

European eel (Anguilla anguilla) recruitment has been declining at least since the early 1980s at the scale of its distribution area. Since the population is panmictic, its stock assessment should be carried out on a range-wide basis. However, assessing the overall stock during the continental phase remains difficult given its widespread distribution among heterogeneous and separate river catchments. Hence, it is currently considered by the International Council for the Exploration of the Sea (ICES) more feasible to use glass eel recruitment data to assess the status of the overall population. In this study, we used Glass Eel Recruitment Estimation Model (GEREM) to estimate annual recruitment (i) at the river catchment level, a scale for which data are available, (ii) at an intermediate scale (6 European regions), and (iii) at a larger scale (Europe). This study provides an estimate of the glass eel recruitment trend through a single index, which gathers all recruitment time-series available at the European scale. Results confirmed an overall recruitment decline to dramatically low levels in 2009 (3.5% of the 1960-1979 recruitment average) and highlighted a more pronounced decline in the North Sea area compared to elsewhere in Europe.
机译：至少自1980年代初以来，欧洲鳗鱼（安圭拉鳗鱼）的招募一直在减少，其分布区域的规模一直在下降。由于人口是恐慌性的，因此应在范围广泛的基础上进行种群评估。但是，由于大陆阶段在非均质流域和独立河流流域之间的分布广泛，因此评估总体种群仍然困难。因此，国际海洋探索理事会（ICES）目前认为，使用玻璃鳗招募数据来评估总体人口状况更为可行。在这项研究中，我们使用了玻璃鳗招聘估计模型（GEREM）来估算（i）河流集水水平的年度招聘量（可获取数据的规模）（ii）中等规模（6个欧洲地区），以及（ iii）扩大规模（欧洲）。这项研究通过一个指数来估计玻璃鳗的招聘趋势，该指标收集了欧洲范围内所有可用的招聘时间序列。结果证实，2009年总体招聘人数下降到极低的水平（1960-1979年平均招聘人数的3.5％），并着重指出与欧洲其他地区相比，北海地区的招聘人数下降幅度更大。

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  • 来源
    《ICES Journal of Marine Science》 |2018年第2期|541-552|共12页
  • 作者

    Bornarel Virginie; Lambert Patrick; Briand Cedric; Antunes Carlos; Belpaire Claude; Ciccotti Eleonora; Diaz Estibaliz; Diserud Ola; Doherty Denis; Domingos Isabel; Evans Derek; de Graaf Martin; OLeary Ciara; Pedersen Michael; Poole Russell; Walker Alan; Wickstrom Hakan; Beaulaton Laurent; Drouineau Hilaire;

  • 作者单位

    Irstea UR EABX, 50 Ave Verdun, F-33612 Gazinet Cestas, France;

    Irstea UR EABX, 50 Ave Verdun, F-33612 Gazinet Cestas, France;

    Inst Amenagement Vilaine, F-56130 La Roche Bernard, France;

    Interdisciplinary Ctr Marine & Environm Res CIIMA, Rua Bragas,289,Porto,4050-123 Terminal Cruzeiros, P-4450208 Matosinhos, Portugal;

    Res Inst Nat & Forest INBO, Dwersbos 28, B-1630 Linkebeek, Belgium;

    Univ Roma Tor Vergata, Dipartimento Biol, Via Ric Sci Snc, I-00133 Rome, Italy;

    AZTI Tecnalia, Div Marine Res, Txatxarramendi Ugartea Z-q, Sukarrieta 48395, Bizkaia, Spain;

    NINA, N-7485 Trondheim, Norway;

    ESB, Ardnacrusha,Co Clare, Via Limerick, Ireland;

    Univ Lisbon, Fac Ciencias, Dept Biol Anim, P-1749016 Lisbon, Portugal;

    Agri Food & Biosci Inst, Fisheries & Aquat Ecosyst Branch, Newforge Lane BT9 5PX, Belfast, England;

    Wageningen Univ Res, Wageningen Marine Res, POB 68, NL-1970 AB IJmuiden, Netherlands;

    Inland Fisheries Ireland, 3044 Lake Dr,Citywest Business Campus, Dublin D24Y265 24, Ireland;

    Tech Univ Denmark, Nat Inst Aquat Resources, Vejlsovej 39,, DK-8600 Silkeborg, Denmark;

    Newport Co, Marine Inst, Mayo, Ireland;

    CEFAS Lab, Pakefield Rd, Lowestoft NR33 0HT, Suffolk, England;

    Swedish Univ Agr Sci, Inst Freshwater Res, Dept Aquat Resources, Stangholmsvagen 2, S-17893 Drottningholm, Sweden;

    Agence Francaise Biodiversite, Pole Gest Aqua, 65 Rue St Brieuc, F-35042 Rennes, France;

    Irstea UR EABX, 50 Ave Verdun, F-33612 Gazinet Cestas, France;

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  • 正文语种 eng
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  • 关键词

    GEREM; glass eel; panmixia; temperate eel; trend;

    机译：GEREM;玻璃鳗;混血症;温带鳗鱼;趋势;

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