Calm before the spawn: global coral spawning patterns are explained by regional wind fields
Calm before the spawn: global coral spawning patterns are explained by regional wind fields
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产卵前平静：全球珊瑚产卵模式由区域风场解释
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发表时间：
2010
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影响因子：
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通讯作者：
R. Woesik
中科院分区：
文献类型：
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作者：
R. Woesik
热带地区的大多数珊瑚将它们的配子传播到水柱中，但我们对是什么迫使生殖时间表的了解很少。此外，最近的研究表明，珊瑚产卵季节的持续时间存在很大的地理差异。例如，在大堡礁，珊瑚显示出紧密的耦合，而肯尼亚的珊瑚产卵超过7个月。本研究通过检验区域风场是珊瑚最终繁殖代理的假设来调和区域差异。平静期较短的区域应比平静期长达数月的区域更紧密地耦合。1997年至2006年期间，利用热带降雨测量使命（TRMM）上的11 GHz通道辐射计热带微波成像仪（TMI）对七个地点的区域风场进行了评估。区域平静期的持续时间与珊瑚大量产卵的耦合之间存在直接的正相关关系。在平静时期释放配子的最终长期进化优势确保了受精，并促进了幼虫的保留和局部招募。耦合质量产卵与季节性平静期同意强烈与最近的遗传证据的本地分散和高本地保留。
Most corals in tropical localities broadcast their gametes into the water column, yet we have a poor understanding of what forces reproductive schedules. Moreover, recent studies show considerable geographical variation in the duration of the coral spawning season. For example, on the Great Barrier Reef, corals display tight coupling, while corals in Kenya spawn over seven months. This study reconciles the regional variance by testing the hypothesis that regional wind fields are the corals' ultimate reproductive proxy. Regions with short calm periods should be more tightly coupled than regions with calm periods extending for several months. Regional wind fields were assessed at seven localities, between 1997 and 2006, using the 11 GHz channel radiometer tropical microwave imager (TMI) onboard the tropical rainfall measuring mission (TRMM). There was a direct positive relationship between the duration of regional calm periods and the coupling of mass coral spawning. Ultimate long-term evolutionary advantages of releasing gametes during calm periods ensure fertilization and facilitate larval retention and local recruitment. Coupling mass spawning with seasonally calm periods agrees strongly with recent genetic evidence of local dispersal and high local retention.