Comparisons of population density and genetic diversity in artificial and wild populations of an arborescent coral, Acropora yongei: implications for the efficacy of “artificial spawning hotspots”
Comparisons of population density and genetic diversity in artificial and wild populations of an arborescent coral, Acropora yongei: implications for the efficacy of “artificial spawning hotspots”
复制标题
树状珊瑚（Acropora yongei）人工和野生种群的种群密度和遗传多样性比较：对“人工产卵热点”功效的影响
DOI：
10.1111/rec.12857
复制
发表时间：
2018
影响因子：
3.2
通讯作者：
Suzuki Go
中科院分区：
文献类型：
--
作者：
Zayasu Yuna;Suzuki Go
我们正在开发技术，通过使用聚集同种成年珊瑚的“人工产卵热点”来增加幼虫供应，从而恢复珊瑚种群。但是，没有关于授精率如何影响野生珊瑚种群的自然幼虫供应以及这反过来又如何受到当地种群密度和遗传多样性的影响的数据。为此，我们对野生树栖珊瑚（Acropora yongei）的种群密度和遗传多样性进行了评估，并将这些参数与人工建立的种群密度和遗传多样性进行了比较。人口在外地。即使在高覆盖区域，野生树栖珊瑚的种群密度也仅为人工种群的0.27%。与人工群体相比，野生群体的遗传多样性也较低，大约10%的野生群体是无性系。根据这些结果，估计人工种群的幼虫供应量至少是野生种群的1400倍。人口为同地区的成年人口。
We are developing techniques to restore coral populations by enhancing larval supply using “artificial spawning hotspots” that aggregate conspecific adult corals. However, no data were available regarding how natural larval supply from wild coral populations is influenced by fertilization rate and how this is in turn affected by local population density and genetic diversity. Therefore, we assessed population density and genetic diversity of a wild, arborescent coral,Acropora yongei, and compared these parameters with those of an artificially establishedA. yongeipopulation in the field. The population density of wild arborescent corals was only 0.27% of that in the artificial population, even in a high‐coverage area. Genetic diversity was also low in the wild population compared with the artificial population, and approximately 10% of all wild colonies were clones. Based on these results, the larval supply in the artificial population was estimated to be at least 1,400 times higher than that in wildA. yongeipopulations for the same area of adult population.