Coral mass- and split-spawning at a coastal and an offshore Venezuelan reefs, southern Caribbean
Coral mass- and split-spawning at a coastal and an offshore Venezuelan reefs, southern Caribbean
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DOI：
10.1007/s10750-004-4672-y
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发表时间：
2005-06-01
期刊：
影响因子：
2.6
通讯作者：
Márquez, LM
中科院分区：
文献类型：
--
作者：
Bastidas, C;Cróquer, A;Márquez, LM
本研究旨在评估加勒比南部边缘沿海珊瑚礁和近海珊瑚礁之间珊瑚产卵行为的潜在差异。为此，在委内瑞拉 Morrocoy 和 Los Roques 国家公园的两个研究地点，沿着 8 个横断面（每条长 10 米）绘制了 21 个物种的石珊瑚和柳珊瑚群落 (N = 324)。观测时间为2002年8月23日至30日和9月26日至30日的19:30至23:00。在此期间，属于6种硬珊瑚和7种八珊瑚的91个珊瑚群产卵或浮游。我们无法在 9 个物种的 95 个菌落中观察到任何不同于繁殖活动的迹象。尽管两个地点之间的环境条件存在差异，但我们观察到两个珊瑚礁共有的七种珊瑚物种的产卵行为高度同步。最引人注目的结果是 Montastraea faveolata 和 Eusmilia fastigiata 的菌落能够在连续的夜晚或不同的月份中分裂产卵多达 3 次。
This study aimed to evaluate potential differences in coral spawning behavior between a fringing coastal reef and an offshore reef in the southern Caribbean. For this, scleractinian and gorgonian colonies (N = 324) of 21 species were mapped along eight transects, each 10-m long, at two study sites located in Morrocoy and Los Roques National Parks, Venezuela. Observations were made between 19:30 and 23:00 from August 23 to 30 and from September 26 to 30, 2002. Ninety one colonies belonging to six hard coral and seven octocoral species spawned or planulated during this period. We were unable to observe any signs of reproductive activity in 95 colonies of nine species different from those that reproduced. Despite the differences in environmental conditions between the two sites, we observed high synchrony in the spawning behavior of seven coral species common to both reefs. The most striking result was the ability of colonies of Montastraea faveolata and Eusmilia fastigiata to split spawn up to three times, either in consecutive nights or in different months.