Limited fine-scale larval dispersal of the threatened brooding corals Heliopora spp. as evidenced by population genetics and numerical simulation
Limited fine-scale larval dispersal of the threatened brooding corals Heliopora spp. as evidenced by population genetics and numerical simulation
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受威胁的孵卵珊瑚 Heliopora spp. 的幼虫小规模扩散有限。
DOI：
10.1007/s10592-019-01228-7
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发表时间：
2019
影响因子：
2.2
通讯作者：
Yasuda N.
中科院分区：
文献类型：
--
作者：
Taninaka H.;Bernardo L.;Saito Y.;Nagai S.;Ueno M.;Kitano Y.;Nakamura T.;Yasuda N.
由于区域和全球的人为压力，全世界的珊瑚礁正在减少。Sekisei泻湖及其附近地区受到相同应力的影响。Sekisei Lagoon是日本最大的珊瑚礁区，面积近15 km × 20 km。由于位于黑潮的上游，珊瑚礁可以为下游的琉球群岛等提供幼体，因此生物多样性较高。为了保护在这样一个地区的珊瑚，估计种群之间的幼虫扩散是必不可少的，因为通过幼虫扩散的连接与干扰后的补充时间。孤立的珊瑚种群有较高的局部灭绝风险。本研究的目的是揭示在Sekisei泻湖和周围的幼虫持续时间短的育雏珊瑚的遗传隔离的人口。为此，我们利用人口遗传分析和幼虫扩散模拟。基于对929个蓝珊瑚菌落的基因分型，从22个地点收集Sekisei泻湖，遗传分析表明，自我招聘与连接在东南部网站和西北部网站。粒子跟踪幼虫扩散模拟也揭示了类似的模式，证实了遗传结果。这些结果表明，泻湖尺度的连接性之间的种群Helioporaspp。在Sekisei泻湖是有限的，正如预期的基础上，其幼虫持续时间短。我们的研究结果强调了一个事实，即大多数的太阳能电池。种群在遗传上是孤立的，即使在Sekisei泻湖内，这意味着在干扰后从周围种群获得幼虫补充的可能性很低，比其他具有高幼虫扩散潜力的珊瑚物种有更高的局部灭绝风险。
Coral reefs are declining worldwide due to regional and global anthropogenic stress. Sekisei Lagoon and areas in its vicinity are impacted by the same stresses. Sekisei Lagoon is the largest coral reef area in Japan covering an area of almost 15 km × 20 km. Being situated upstream of Kuroshio Current, coral reefs in this area could supply larvae to downstream such as the Ryukyu Archipelago, facilitating high biodiversity. To conserve corals in such an area, estimation of larval dispersal among populations is essential because connectivity via larval dispersal is associated with the time for replenishment after disturbance. Isolated coral populations have a higher risk of local extinction. The purpose of this study is to reveal genetically isolated populations of brooding corals with short larval durations in and around Sekisei Lagoon. For this purpose, we utilized both population genetic analysis and larval dispersal simulations. Based on genotyping of 929 colonies of blue coral,Helioporaspp., collected from 22 sites around Sekisei Lagoon, genetic analysis suggested self-recruitment with connectivity in the southeastern sites and northwestern sites. Particle-tracking larval dispersal simulations also revealed similar patterns, corroborating the genetic results. These results suggest that lagoonal scale connectivity among populations ofHelioporaspp. in Sekisei Lagoon is limited, as expected based on its short larval duration. Our results highlight the fact that most of theHelioporaspp. populations are genetically isolated, even inside Sekisei Lagoon, implying that the likelihood of being replenished by larval supply from surrounding populations after a disturbance is low and have a higher risk of local extinction than other coral species with high larval dispersal potential.
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影响因子：
3.3
作者：
J. K. Pritchard;Matthew Stephens;Peter Donnelly
通讯作者：
J. K. Pritchard;Matthew Stephens;Peter Donnelly
珊瑚礁保护：重新设计珊瑚礁保护
DOI：
10.1017/cbo9780511804472.019
发表时间：
2006
期刊：
--
影响因子：
--
作者：
C. Roberts;J. Reynolds;I. Côté;J. Hawkins
通讯作者：
J. Hawkins
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DOI：
--
发表时间：
2010
期刊：
southwest Japan. Ocean Dynamics
影响因子：
--
作者：
Lu L. F.;Y. Miyazawa;W. Cui and K. Nadaoka
通讯作者：
W. Cui and K. Nadaoka
影响因子：
2.5
作者：
Kayanne, H;Harii, S;Akimoto, F
通讯作者：
Akimoto, F
1912年至2015年日本棘冠海星Acanthaster planci sensu lato的分布扩展和历史种群爆发模式
DOI：
10.1007/978-981-10-6473-9_9
发表时间：
2018
期刊：
--
影响因子：
--
作者：
N. Yasuda
通讯作者：
N. Yasuda