Please use this identifier to cite or link to this item: http://hdl.handle.net/10261/143601
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Title

Polyp bail-out by the coral Astroides calycularis (Scleractinia, Dendrophylliidae)

AuthorsSerrano, Eduard CSIC ORCID; Coma, Rafael CSIC ORCID ; Inostroza, Karina; Serrano, Oscar CSIC ORCID CVN
KeywordsAzooxanthellate corals
Mediterranean Sea
Asexual reproduction
Stress
Global change
Issue Date2017
PublisherSpringer Nature
CitationMarine Biodiversity : doi:10.1007/s12526-017-0647-x (2017)
AbstractKnowledge of reproductive biology is essential for ecological studies on coral population dynamics. The azooxanthellate colonial coral Astroides calycularis is endemic to the western Mediterranean Sea and adjacent Atlantic coasts. Specimens of this species in artificial conditions, an aquarium with enclosed seawater and low food availability, appeared to show an asexual dispersal mechanism. This mechanism consisted of the detachment and release of single, skeletonless polyps from the underlying colony skeleton (i.e., polyp bail-out). While the released free-living polyps regularly showed extended tentacles and most of them survived, they did not show re-attachment to the substrate or any skeleton formation until the end of the experiment, ∼2–3 months after bail-out. Formation of new reproductive colonies, thereby the eventual completion of asexual reproduction through polyp bail-out in A. calycularis, still needs to be confirmed. In addition to sexual reproduction, polyp bail-out may constitute an alternative propagation mechanism during periods of environmental stress, thereby potentially increasing the survival rate of the parental genotype and the dispersal by drifting soft polyps.
DescriptionEste artículo contiene 5 páginas, 2 figuras.
Publisher version (URL)http://dx.doi.org/10.1007/s12526-017-0647-x
URIhttp://hdl.handle.net/10261/143601
DOI10.1007/s12526-017-0647-x
ISSN1867-1616
E-ISSN1867-1624
Appears in Collections:(CEAB) Artículos




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