Coral reproduction on the world's southernmost reef at Lord Howe Island, Australia
Coral reproduction on the world's southernmost reef at Lord Howe Island, Australia
复制标题
DOI：
10.3354/ab00627
复制
发表时间：
2015-01-01
期刊：
影响因子：
1.4
通讯作者：
Woolsey, Erika S.
中科院分区：
文献类型：
--
作者：
Baird, Andrew H.;Cumbo, Vivian R.;Woolsey, Erika S.
尽管珊瑚生殖研究的地理范围最近有所扩大，但在印度-太平洋地区仍有许多地区的知识有限。例如，豪勋爵岛是世界上最南端的珊瑚礁系统（南纬31度）;然而，人们对珊瑚动物群的生殖生物学知之甚少。在这里，生殖生物学方面和繁殖的时间为40约65种发生在豪勋爵岛的记录。2010年12月，对鹿角珊瑚配子成熟阶段进行了实地评估。2010年12月产卵5种，2011年1月产卵11种。2012年1月，类似的采样表明，12个鹿角珊瑚物种在1月产卵，1个在2月产卵。此外，2012年1月17：30至24：00（满月后10至12天），10属11种植物广播产卵。推测红角星珊瑚在满月后6 ~ 12 d，即17：00 h前产卵，苍鹭滨珊瑚在满月后6 ~ 12 d释放出育雏幼虫。从2011年4月开始，每月使用解剖和组织学检查其他3种育雏物种的生殖生物学，为期1年。其中，Seriatopora hystrix在2011年11月至2012年3月期间含有浮凸，Stylophora pistillata在2011年11月至2012年2月期间含有浮凸。在Damicornis中没有观察到卵或浮板。总之，豪勋爵岛的产卵模式与印度太平洋的其他地方是一致的：多物种同步产卵事件发生在满月之后，当水温相对较高时。
Despite a recent expansion in the geographic extent of coral reproductive research, there remain many regions in the Indo-Pacific where knowledge is limited. For example, Lord Howe Island is the southernmost reef system in the world (31 degrees S); however, very little is known of the reproductive biology of the coral fauna. Here, aspects of the reproductive biology and the timing of reproduction for 40 of the approximately 65 species that occur on Lord Howe Island are documented. In December 2010, field assessments of the stage of gamete maturity in Acropora spp. colonies suggested that 5 species spawned in December 2010 and 11 in January 2011. In January 2012, similar sampling suggested that 12 Acropora species spawned in January and 1 in February. In addition, 11 species from 10 genera broadcast spawned gametes from 17:30 to 24:00 h in January 2012, 10 to 12 d after full moon. Goniastrea favulus was inferred to spawn prior to 17:00 h, 6 to 12 d after full moon and Porites heronensis released brooded larvae. The reproductive biology of 3 other brooding species was examined using dissections and histology monthly for 1 yr from April 2011. Of these, Seriatopora hystrix contained planulae between November 2011 and March 2012, Stylophora pistillata contained planulae between November 2011 and February 2012. No eggs or planulae were ob served in Pocillopora damicornis. In conclusion, the spawning patterns on Lord Howe Island are consistent with other locations in the Indo-Pacific: multi-species synchronous spawning episodes occur after full moons, when water temperatures are relatively high.