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首页> 外文期刊>Estuarine Coastal and Shelf Science >Stability of reef framework and post settlement mortality as the structuring factor for recovery of Malakal Bay Reef, Palau, Micronesia: 25 years after a severe COTS outbreak
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Stability of reef framework and post settlement mortality as the structuring factor for recovery of Malakal Bay Reef, Palau, Micronesia: 25 years after a severe COTS outbreak

机译：密克罗尼西亚帕劳的马拉卡勒湾礁的礁石构架的稳定性和定居后的死亡率是恢复构造的因素：严重COTS爆发后的25年

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摘要

Corals in Malakal Bay reefs were devastated in the 1979 Crown of Thorns Starfish (COTS) outbreak. It has been almost 30 years since the outbreak and coral cover at the study sites have not come close to the cover before the outbreak. A question is asked: what factors may contribute to the slow recovery of these reefs: recruitment or post-settlement mortality? Two habitat types within the reef systems were monitored using coral transplants to determine if corals can survive in these environments and recruitment tiles to see if there are larvae coming into the system. The study revealed that coral survivorship is high in the fore reef areas compared to the reef channel slopes and that larvae is not a limiting factor to natural recovery. Stability of the reef framework, i.e. unstable rubble substrate, and possibly high post settlement mortality, are the structuring factors that determine the recovery process in these reef systems and possibly so for similar habitats in other reef systems throughout Palau.
机译：1979年荆棘海星皇冠（COTS）爆发，摧毁了马拉卡勒湾珊瑚礁的珊瑚。自爆发以来已经过去了30年，研究地点的珊瑚覆盖率还没有接近爆发之前的覆盖率。问一个问题：什么因素可能导致这些礁石的缓慢恢复：募集或定居后的死亡率？使用珊瑚移植监测了珊瑚礁系统中的两种栖息地类型，以确定珊瑚是否可以在这些环境中生存，并通过募集瓷砖查看是否有幼虫进入系统。这项研究表明，与礁河道的斜坡相比，前礁地区的珊瑚生存率很高，而且幼体并不是自然恢复的限制因素。礁构架的稳定性，即不稳定的瓦砾底物，以及可能的高定居后死亡率，是决定这些礁石系统以及整个帕劳其他礁石系统中类似生境的恢复过程的结构因素。

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