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首页> 外文期刊>Marine biology >Porites and the Phoenix effect: unprecedented recovery after a mass coral bleaching event at Rangiroa Atoll, French Polynesia
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Porites and the Phoenix effect: unprecedented recovery after a mass coral bleaching event at Rangiroa Atoll, French Polynesia

机译：孔隙和凤凰效应：法属波利尼西亚兰吉罗环礁发生大规模珊瑚褪色事件后，空前的恢复

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The 1997/1998 El Nino Southern Oscillation (ENSO) was the most severe coral bleaching event in recent history, resulting in the loss of 16 % of the world's coral reefs. Mortality was particularly severe in French Polynesia, where unprecedented mortality of massive Porites was observed in lagoonal sites of Rangiroa Atoll. To assess the recovery of massive Porites 15 years later, we resurveyed the size structure and extent of partial mortality of massive Porites at Tivaru (Rangiroa). Surveys revealed an abundance of massive Porites colonies rising from the shallow lagoonal floor. Colony width averaged 2.65 m, reaching a maximum of 7.1 m (estimated age of ～391 ± 107 years old). The relative cover of recently dead skeleton within quadrats declined from 42.8 % in 1998 to zero in 2013, yet the relative cover of old dead skeleton increased only marginally from 22.1 % in 1998 to 26.1 % in 2013. At a colony level, the proportion of Porites dominated by living tissue increased from 34.9 % in 1998 to 73.9 % in 2013, indicating rapid recovery of recent dead skeleton to living tissue rather than transitioning to old dead skeleton. Such rapid post-bleaching recovery is unprecedented in massive Porites and resulted from remarkable self-regeneration termed the 'Phoenix effect', whereby remnant cryptic patches of tissue that survived the 1997/1998 ENSO event regenerated and rapidly overgrew adjacent dead skeleton. Contrary to our earlier predictions, not only are large massive Porites relatively resistant to stress, they appear to have a remarkable capacity for recovery even after severe partial mortality.
机译：1997/1998年的厄尔尼诺南方涛动（ENSO）是最近历史上最严重的珊瑚白化事件，导致全世界16％的珊瑚礁损失。在法属波利尼西亚，死亡率特别严重，在兰吉罗环礁环礁泻湖中观察到大量的多孔岩死亡。为了评估15年后大量多孔岩的恢复情况，我们对蒂瓦鲁（兰吉罗亚）大型多孔岩的大小结构和部分死亡程度进行了调查。调查显示，大量的多孔质聚居地从浅泻湖层升起。菌落平均为2.65 m，最大为7.1 m（估计年龄为〜391±107岁）。四头类动物中最近死去的骨架的相对覆盖率从1998年的42.8％下降到2013年的零，而旧死去的骨架的相对覆盖率仅从1998年的22.1％略微增加到2013年的26.1％。活组织占主导的孔隙度从1998年的34.9％增至2013年的73.9％，表明最近的死骨骼迅速恢复为活组织，而不是过渡到旧的死骨骼。如此迅速的漂白后恢复在大量的多孔岩中是前所未有的，并且是由称为“凤凰效应”的出色的自我再生产生的，从而使在1997/1998年ENSO事件中幸存下来的组织的隐秘暗斑得以再生，并使邻近的死骨骼迅速长满。与我们早先的预测相反，大型块状磷矿不仅对应力具有相对的抵抗力，而且即使在严重的部分死亡后，也具有显着的恢复能力。

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    《Marine biology》 |2014年第6期|1385-1393|共9页
  • 作者

    George Roff; Sonia Bejarano; Yves-Marie Bozec; Maggy Nugues; Robert S. Steneck; Peter J. Mumby;

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    Marine Spatial Ecology Lab, School of Biological Sciences, University of Queensland, St Lucia, QLD 4072, Australia;

    Marine Spatial Ecology Lab, School of Biological Sciences, University of Queensland, St Lucia, QLD 4072, Australia;

    Marine Spatial Ecology Lab, School of Biological Sciences, University of Queensland, St Lucia, QLD 4072, Australia;

    Laboratoire d'Excellence 'CORAIL' and USR 3278 CRIOBE CNRS-EPHE, CBETM de l'Universite de Perpignan, 66860 Perpignan Cedex, France;

    School of Marine Sciences, Darling Marine Center, University of Maine, Walpole, MA 04573, USA;

    Marine Spatial Ecology Lab, School of Biological Sciences, University of Queensland, St Lucia, QLD 4072, Australia;

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