Skip to Main content Skip to Navigation
Journal articles

Unexpected high densities of the hybrid coral Acropora prolifera (Lamarck 1816) in Guadeloupe Island, Lesser Antilles

Abstract : Unexpected high densities of the hybrid coral Acropora prolifera (Lamarck 1816) in Guadeloupe Island, Lesser Antilles Since the 1980s, coral populations of Acropora palmata (Lamarck 1816) and A. cervicornis (Lamarck 1816) have dramatically declined in the Caribbean and have been consequently classified as critically endangered since 2008 (IUCN). Acropora palmata and A. cervicornis can form a viable F1 offspring previously described as A. prolifera by Lamarck (Vollmer and Palumbi 2002). Few isolated colonies of that morphotype have punctually been reported on Lesser Antilles reefs in the previous decades. In January 2013, high densities of morphologically identified A. prolifera colonies were observed in the Bay of Grand Cul-de-Sac Marin (16°21¢24.19 †N; 61°35¢35.12 †W, Guadeloupe Island, Lesser Antilles), whereas no colonies were found at this exact same site prospected in May 2011 (Fig. 1). Genetic microsatellite analyses (unpublished data) verified the hybrid nature of the colonies and suggest that they may constitute a single clone. However, in other Caribbean sites, Fogarty (2010) found high genotypic diversity for that hybrid. As a consequence of decreased parental species' density, eggs likely float unfertilized, increasing the probability of heterospecific sperm encounters and thus hybrid embryo formation (Fogarty et al. 2012). References Fogarty ND (2010) Reproductive isolation and hybridization dynamics in threatened Caribbean acroporid corals. Ph.D. thesis,
Document type :
Journal articles
Complete list of metadatas

https://hal.ird.fr/ird-03044174
Contributor : Cecile Fauvelot <>
Submitted on : Monday, December 7, 2020 - 4:55:55 PM
Last modification on : Sunday, December 13, 2020 - 3:06:56 AM

File

Japaud_etal_2014_Coralreefs.pd...
Files produced by the author(s)

Identifiers

Collections

IRD

Citation

A Japaud, C Fauvelot, C Bouchon. Unexpected high densities of the hybrid coral Acropora prolifera (Lamarck 1816) in Guadeloupe Island, Lesser Antilles. Coral Reefs, Springer Verlag, 2014, 33, pp.593 - 593. ⟨10.1007/s00338-014-1169-7⟩. ⟨ird-03044174⟩

Share

Metrics

Record views

12

Files downloads

21