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首页> 外文期刊>Ocean & coastal management >Evidences of fishing impact on the coastal gorgonian forests inside the Portofino MPA (NW Mediterranean Sea)
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Evidences of fishing impact on the coastal gorgonian forests inside the Portofino MPA (NW Mediterranean Sea)

机译：Portofino MPA（NW地中海）内沿海戈贡林捕鱼影响的证据

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摘要

The gorgonians Paramuricea clavata (Risso, 1826) and Eunicella cavolini (Koch, 1887) are important habitat-forming species within the Mediterranean coralligenous habitats, creating complex, three-dimensional forests that greatly contribute to the underwater landscape of the coastal hard grounds. Dense forests of both species are present within the Portofino Marine Protected Area (Ligurian Sea, NW Mediterranean Sea), showing a distinct bathymetric separation and site-specific differences.Quantitative evidences obtained with a monitoring census conducted in 2016 in 16 sites within the MPA support the existence of a widespread damage on these populations partially due to the mechanical injuries inflicted by recreational and professional demersal fishing gears. Considering all the studied populations, it resulted that 53% of the colonies of P. clavata and 36% of the colonies of E. cavolini were showing traces of impact, of which 10% in P. clavata and 7% in E. cavolini were due to direct entanglements with lost longlines.In the last decades, recurrent massive mortalities related to temperature anomalies and storms, have greatly reduced the gorgonian populations in this area and fishing impact severely affects survived or recovering colonies. Considering the vulnerable status of these species, and the increasing stress due to climate change, a correct management of the anthropic pressures is strongly needed to help preserving these relevant ecosystems.
机译：Gorgonians Paramuricea Clavata（Risso，1826）和Eunicella cavolini（Koch，1887年）是地中海珊瑚栖息地的重要栖息地物种，创造了复杂的三维森林，这极大地有助于沿海地面的水下景观。两种物种的茂密森林都存在于Portofino海洋保护区（Ligurian Sea，NW地中海）内，显示出不同的碱基分离和现场特定的差异。在MPA支持内的16个站点中进行了2016年的监测人口普查，所获得的普通证据。由于娱乐和专业的捕捞齿轮造成的机械损伤，这些人群的存在普遍存在危害。考虑到所有研究的人群，它使53％的P.Clavata菌落和E.Vevolini的36％的菌落显示出痕量的影响，其中P.Clavata的10％10％，在E. Cavolini中的7％由于失去了Longlines的直接纠缠。在过去的几十年中，与温度异常和风暴有关的反复性大量死亡率，大大减少了这一领域的戈贡尼人群，捕捞影响严重影响幸存或恢复殖民地。考虑到这些物种的脆弱状态，以及由于气候变化导致的压力越来越大，强烈需要对人类压力的正确管理有助于保护这些相关的生态系统。

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  • 来源
    《Ocean & coastal management》 |2020年第4期|105105.1-105105.10|共10页
  • 作者

    Betti F.; Bavestrello G.; Bo M.; Ravanetti G.; Enrichetti F.; Coppari M.; Cappanera V; Venturini S.; Cattaneo-Vietti R.;

  • 作者单位

    Univ Genoa Dipartimento Sci Terra Ambiente & Vita Corso Europa 26 I-16132 Genoa Italy;

    Univ Genoa Dipartimento Sci Terra Ambiente & Vita Corso Europa 26 I-16132 Genoa Italy;

    Univ Genoa Dipartimento Sci Terra Ambiente & Vita Corso Europa 26 I-16132 Genoa Italy;

    Univ Parma Dipartimento Sci Chim Vita & Sostenibilita Ambien Parco Area Sci 11a I-43124 Parma Italy;

    Univ Genoa Dipartimento Sci Terra Ambiente & Vita Corso Europa 26 I-16132 Genoa Italy;

    Univ Genoa Dipartimento Sci Terra Ambiente & Vita Corso Europa 26 I-16132 Genoa Italy;

    AMP Portofino Corso Rainusso Genoa Italy;

    AMP Portofino Corso Rainusso Genoa Italy;

    Univ Genoa Dipartimento Sci Terra Ambiente & Vita Corso Europa 26 I-16132 Genoa Italy;

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  • 关键词

    Paramuricea clavata; Eunicella cavolini; Fishing impact; Ligurian sea; Conservation;

    机译：paramuricea clavata;Eunicella Cavolini;钓鱼影响;利古里亚海;保护;

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