期刊
CORAL REEFS
卷 33, 期 4, 页码 1041-1046出版社
SPRINGER
DOI: 10.1007/s00338-014-1177-7
关键词
Acropora palmata; Orbicella faveolata; Florida Keys; Orientation; Recruitment
资金
- NOAA Coral Reef Conservation Program
- Mote Marine Laboratory Protect Our Reefs Program [POR-2009-14]
- Florida Keys National Marine Sanctuary [FKNMS-2007-114, FKNMS-2010-055-A1, FKNMS-2012-101]
The post-settlement phase of broadcast-spawned coral life histories is poorly known due to its almost complete undetectability and, hence, presumed low abundance in the field. We used lab-cultured settled polyps of two important Caribbean reef-building species with negligible larval recruitment to quantify early post-settlement survivorship (6-9 weeks) over multiple years/cohorts and differing orientation on a reef in the Florida Keys. Orbicella faveolata showed significantly and consistently better survivorship in vertical rather than horizontal orientation, but no discernable growth overall. Meanwhile, Acropora palmata showed no significant difference in survivorship between orientations, but significantly greater growth in the horizontal orientation. Both species showed significant variation in mean survivorship between cohorts of different years; 0-47 % for O. faveolata and 12-49 % for A. palmata over the observed duration. These results demonstrate wide variation in success of cohorts and important differences in the larval recruitment capacities of these two important but imperiled reef-building species.
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