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Scuba diver behaviour and its effects on the biota of a Mediterranean marine protected area

机译:水肺潜水员的行为及其对地中海海洋保护区生物区系的影响

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摘要

The effects of diving activity in different Mediterranean subtidal habitats are scarcely known. This study evaluates diver behaviour (for example time spent in each habitat), use (contacts made with the substrate) and immediate effects of diver contact on benthic species in a marine protected area (MPA) in Sicily. Over a two-year period, intentions of 105 divers were observed within seven subtidal habitats: algae on horizontal substrate, algae on vertical substrate, Posidonia oceanica, encrusted walls, caves, sand and pebbles. Divers selected a habitat in proportion to its availability along the scuba trail. On average, each diver made 2.52 contacts every seven minutes, and no differences were detected among the levels of diver scuba certification. The highest rates of total and unintentional contacts were recorded on caves and encrusted walls, and the slow growing species Eunicella singularis and Astroides calycularis were the most frequently injured by divers. Most of the contacts were concentrated in the first minutes of the dives. The identification of diving effects in different habitats will enable management strategies to specifically control this impact at a habitat scale, for example restricting the start of the dive to low vulnerability habitats would reduce damage to benthic organisms, allowing sustainable use of MPAs.
机译:在不同的地中海潮下生境中潜水活动的影响鲜为人知。这项研究评估了西西里岛海洋保护区(MPA)中潜水员的行为(例如,每个栖息地所花费的时间),使用情况(与底物的接触)以及对潜水员对底栖物种的直接影响。在两年的时间内,在七个潮下生境中观察到105名潜水员的意图:水平基底上的藻类,垂直基底上的藻类,大洋波塞冬,围墙,洞穴,沙子和卵石。潜水员根据潜水路线的可用性选择栖息地。平均而言,每个潜水员每7分钟进行2.52次接触,并且潜水员水肺潜水证书级别之间没有发现差异。最高的总接触率和无意接触率记录在洞穴和围墙上,而生长缓慢的单生Eunicella singularis和catrocularis则是潜水员最常遭受的伤害。大多数联系人都集中在潜水的第一分钟。识别不同栖息地中的潜水影响将使管理策略能够在栖息地规模上具体控制这种影响,例如,将潜水的开始限制在低脆弱性栖息地中将减少对底栖生物的破坏,从而实现MPA的可持续利用。

著录项

  • 来源
    《Environmental Conservation》 |2009年第1期|32-40|共9页
  • 作者单位

    Dipartimento di Ecologia, Universita degli studi di Palermo, Via Archirafi 28, 1-90123 Palermo, Italy Laboratorio di Zoologia e Biologia Marina, DiSTeBA, Universitd di Lecce, Via Provinciale Monteroni, 73100 Lecce, Italy;

    Dipartimento di Ecologia, Universita degli studi di Palermo, Via Archirafi 28, 1-90123 Palermo, Italy;

    Dipartimento di Ecologia, Universita degli studi di Palermo, Via Archirafi 28, 1-90123 Palermo, Italy;

    Dipartimento di Ecologia, Universita degli studi di Palermo, Via Archirafi 28, 1-90123 Palermo, Italy;

    Dipartimento di Ecologia, Universita degli studi di Palermo, Via Archirafi 28, 1-90123 Palermo, Italy;

  • 收录信息 美国《科学引文索引》(SCI);美国《工程索引》(EI);
  • 原文格式 PDF
  • 正文语种 eng
  • 中图分类
  • 关键词

    habitat selection; impact; marine protected area; mediterranean dea; scuba diving;

    机译:栖息地选择;影响;海洋保护区;地中海院水肺潜水;

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