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Modelling the role of alien species and fisheries in an Eastern Mediterranean insular shelf ecosystem

机译：建模外来物种和渔业在东部地中海绝缘架生态系统中的作用

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摘要

We developed a trophic mass-balance model to describe the structure and functioning of the insular shelf ecosystem of the Republic of Cyprus and assess the impact of fishing and alien species during the mid-2010s. A total of 40 functional groups were defined, ranging from producers and detritus to top predators and when possible, alien species were included in exclusively alien groups. All fishing activities in the area were considered. Input data were obtained from local surveys, fishery statistics, published data on stomach content analyses, other scientific and grey literature, as well as empirical equations.Results show that the ecosystem shares common structural and functional characteristics with other Mediterranean ones, especially those in the eastern basin. Fishing has noticeable impacts on the ecosystem and based on the results, 7.1% of the total primary production is required to sustain fisheries. The model predicts a strong negative impact of small-scale fisheries on small sharks and turtles, and of recreational fisheries on the large demersal and pelagic fishes. Our results also highlight the significant role of alien species within the ecosystem. Alien fish accounted for 29% of fish production. Negative impacts of alien fish were predicted, in particular by alien siganids on phytobenthos, and some alien demersal fishes on eels and morays.This is the first food-web model for Cyprus and results are discussed and compared to other Mediterranean models.
机译：我们开发了一种营养的大规模余额模型，以描述塞浦路斯共和国的绝缘货架生态系统的结构和运作，并评估渔业和外星物种在2010年中期的影响。定义了40种官能团，从生产者和炸药到顶部掠夺者以及尽可能不同，外星物种被包括在外星群体中。考虑了该地区的所有捕鱼活动。从当地调查，渔业统计数据，出版数据，关于胃内容分析，其他科学和灰色文学以及实证方程的输入数据。结果表明，生态系统与其他地中海，特别是那些人共同股票结构和功能特征。东部盆地。钓鱼对生态系统有明显的影响，并根据结果，占总生产总产量的7.1％是维持渔业。该模型预测小规模渔业对小鲨鱼和龟的强烈负面影响，以及大型骨折和骨质鱼类上的娱乐渔业。我们的结果还突出了生态系统内外来物种的重要作用。外星人鱼占鱼类生产的29％。预测外星鱼的负面影响，特别是在植物植物中的外星锡氏菌，以及鳗鱼和日常生活的一些外星人倒数鱼。这是塞浦路斯的第一个食品网模型，结果是与其他地中海模型进行讨论的。

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  • 来源
    《Ocean & coastal management》 |2019年第6期|152-171|共20页
  • 作者

    Michailidis N.; Corrales X.; Karachle P. K.; Chartosia N.; Katsanevakis S.; Sfenthourakis S.;

  • 作者单位

    Univ Cyprus Dept Biol Sci POB 20537 CY-1678 Nicosia Cyprus|Dept Fisheries & Marine Res 101 Vithleem Str CY-1416 Nicosia Cyprus;

    CSIC Inst Marine Sci ICM Passeig Maritim Barceloneta 37-49 E-08003 Barcelona Spain|Ecopath Int Initiat Res Assoc Barcelona Spain;

    Hellenic Ctr Marine Res Inst Marine Biol Resources & Inland Waters 46-7 Km Athens Sounio Ave POB 712 Anavyssos Attila 19013 Greece;

    Univ Cyprus Dept Biol Sci POB 20537 CY-1678 Nicosia Cyprus|Univ Cyprus Oceanog Ctr POB 20537 CY-1678 Nicosia Cyprus;

    Univ Aegean Dept Marine Sci Univ Hill Mytiliene 81100 Greece;

    Univ Cyprus Dept Biol Sci POB 20537 CY-1678 Nicosia Cyprus;

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  • 原文格式 PDF
  • 正文语种 eng
  • 中图分类
  • 关键词

    East Mediterranean Sea; Ecopath model; Alien species; Fishing impacts;

    机译：东地中海;EcoPATH模型;外星物种;钓鱼影响;

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