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首页> 外文期刊>Estuarine Coastal and Shelf Science >Eleven years of range expansion of two invasive corals (Tubastraea coccinea and Tubastraea tagusensis) through the southwest Atlantic (Brazil)
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Eleven years of range expansion of two invasive corals (Tubastraea coccinea and Tubastraea tagusensis) through the southwest Atlantic (Brazil)

机译：穿过西南大西洋（巴西）的两种侵入性珊瑚（Tubastraea coccinea和Tubastraea tagusensis）的范围扩展了十一年

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摘要

We report on the temporal and spatial changes in populations of the invasive corals Tubastraea coccinea and Tubastraea tagusensis over an eleven year period at the Ilha.Grande Bay, tropical southwest Atlantic. A semi-quantitative method was used to investigate the geographical distribution of the two congeners on subtidal rocky reefs along 350 km of coastline by applying a relative abundance index (RAI) to quantify change. Data were compared among 2000,2004,2010 and 2011. The indices showed a transition from rarity to dominance throughout the region as well as range expansion; in contrast at one site, where a pilot management initiative of manual control has been carried out, there was a reduction in abundance over time. Abundance values were compared to distance from possible points of introduction to pinpoint where the initial introduction occurred. The observed relationship between the possible points of entry and abundance of the two Tubastraea species was highly significant for the achorage and oil terminal whereas somewhat less so for the shipyard and port. The data obtained in this study are being used to plan further urgent management actions to control the biological invasion of the two Tubastraea species throughout the region, as well as being applied in modeling the range expansion into other regions.
机译：我们报告了热带西南大西洋Ilha.Grande湾在十一年期间入侵性珊瑚Tubastraea coccinea和Tubastraea tagusensis种群的时空变化。通过应用相对丰度指数（RAI）来量化变化，使用半定量方法研究了两个同类物在沿海岸线350 km的潮下礁石上的地理分布。比较了2000年，2004年，2010年和2011年的数据。这些指数显示了整个区域从稀有到占主导地位的转变，以及范围的扩大。与之相反，在一个实施了手动控制试点管理举措的站点上，随着时间的流逝，数量有所减少。将丰度值与从可能引入点到最初引入发生位置的距离进行比较。观察到的两种杜鹃花种类的可能进入点和丰度之间的关系对于锚地和石油码头而言非常重要，而对于造船厂和港口而言则不那么重要。在这项研究中获得的数据正被用于计划进一步的紧急管理措施，以控制整个地区的两个杜鹃花属物种的生物入侵，并被用于对向其他地区扩展范围进行建模。

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  • 来源
    《Estuarine Coastal and Shelf Science》 |2014年第20期|9-16|共8页
  • 作者

    Amanda Guilherme da Silva; Alline Figueira de Paula; Beatriz Grosso Fleury; Joel Christopher Creed;

  • 作者单位

    Programa de Pos Graduacao em Ecologia e Evolucao, Departamento de Ecologia, Universidade do Estado do Rio de Janeiro, CEP: 20550-900 Maracana, Rio de Janeiro, Brazil;

    Petrobras, CEP: 20271-205 Maracana, Rio de Janeiro, Brazil;

    Departamento de Ecologia, Universidade do Estado do Rio de Janeiro, CEP: 20550-900 Maracana, Rio de Janeiro, Brazil;

    Departamento de Ecologia, Universidade do Estado do Rio de Janeiro, CEP: 20550-900 Maracana, Rio de Janeiro, Brazil,Laboratorio de Ecologia Marinha Bentica, Universidade do Estado do Rio de Janeiro, Instituto de Biologia Roberto Alcantara Gomes,Departamento de Ecologia, Rua Sao Francisco Xavier 524, PHLC Sala 220, CEP 20550-900 Rio de Janeiro, RJ, Brazil;

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  • 原文格式 PDF
  • 正文语种 eng
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  • 关键词

    abundance; coral; distribution; range expansion; reef; Tubastraea spp.;

    机译：丰富;珊瑚;分配;范围扩大;礁;杜鹃花属。;

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