Reproductive ecology and early life history traits of the brooding coral, Porites astreoides, from shallow to mesophotic zones
Reproductive ecology and early life history traits of the brooding coral, Porites astreoides, from shallow to mesophotic zones
复制标题
从浅层到中光带育雏珊瑚 Porites astreoides 的繁殖生态学和早期生活史特征
作者：
G. Goodbody;K. Wong;D. M. Becker;K. Glennon;S. J. Putron
育珊瑚的早期生活史特征经常受到亲代珊瑚所经历的环境条件的影响。这种亲代效应会影响后代的生存，从而影响种群的整体成功以及对环境挑战的适应能力。本研究考察了百慕达不同深度梯度的育雏珊瑚的生殖生态学和早期生活史特征。研究人员比较了三个礁点的繁殖力、幼虫大小、共生菌密度、沉降成功以及变质后幼鱼的生存、生长和共生菌密度，分别为近海斑块礁（2-5米）、近海边缘礁（8-10米）和中游上部礁（30-33米）。虽然不同地点的繁殖力没有差异，但斑块珊瑚礁地点的幼虫比边缘和中厚上部珊瑚礁地点的幼虫更小，共生密度更低，沉降率和幼鱼存活率更低。边缘和中胚层上部菌落产生的幼虫在大小和共生菌密度上没有差异；然而，与边缘礁点的幼虫相比，中厚层上部的幼虫的沉降、生长和存活率更高。这些结果表明，在不同的环境条件下，后代的质量和成功率会有所不同，这可能意味着中厚上部珊瑚具有更高的招募潜力和恢复能力。
Early life history traits of brooding corals are often affected by the environmental conditions experienced by parental colonies. Such parental effects can impact offspring survival, which influences the overall success of a population as well as resilience to environmental challenges. This study examines the reproductive ecology and early life history traits of the brooding coral Porites astreoides across a depth gradient in Bermuda. Fecundity, larval size, larval Symbiodinium density, and settlement success, as well as post-metamorphic juvenile survival, growth, and Symbiodinium density were compared across three reef sites representing an inshore patch reef (2–5 m), an offshore rim reef (8–10 m), and an upper-mesophotic reef (30–33 m). Although fecundity did not differ across sites, larvae produced by colonies on the patch reef site were smaller, had lower Symbiodinium densities, and had lower rates of settlement and juvenile survival compared to larvae from colonies on the rim and upper-mesophotic reef sites. Larvae produced by colonies from the rim and upper-mesophotic sites did not differ in size or Symbiodinium densities; however, rates of settlement, growth, and survival were higher for larvae from the upper-mesophotic site compared to those from the rim reef site. These results indicate that offspring quality and success vary among sites with differing environmental conditions and may imply higher recruitment potential and resilience for upper-mesophotic corals.
影响因子：
4.6
作者：
Serrano XM;Baums IB;Smith TB;Jones RJ;Shearer TL;Baker AC
通讯作者：
Baker AC
所有的鸡蛋都是平等的吗？
影响因子：
3.5
作者：
Padilla-Gamiño, Jacqueline L.;Bidigare, Robert R.;Barshis, Daniel J.;Alamaru, Ada;Hédouin, Laetitia;Hernández-Pech, Xavier;Kandel, Frederique;Leon Soon, Sherril;Roth, Melissa S.;Rodrigues, Lisa J.
通讯作者：
Rodrigues, Lisa J.