Please use this identifier to cite or link to this item:
Title: Coral feeding on microalgae assessed with molecular trophic markers
Author: Leal, Miguel C.
Ferrier-Pagès, Christine
Calado, Ricardo
Thompson, Megan E.
Frischer, Marc E.
Nejstgaard, Jens C.
Keywords: PCR
coral feeding
specific primers
Issue Date: 2014
Publisher: Wiley
Abstract: Herbivory in corals, especially for symbiotic species, remains controversial. To investigate the capacity of scleractinian and soft corals to capture microalgae, we conducted controlled laboratory experiments offering five algal species: the cryptophyte Rhodomonas marina, the haptophytes Isochrysis galbana and Phaeocystis globosa, and the diatoms Conticribra weissflogii and Thalassiosira pseudonana. Coral species included the symbiotic soft corals Heteroxenia fuscescens and Sinularia flexibilis, the asymbiotic scleractinian coral Tubastrea coccinea, and the symbiotic scleractinian corals Stylophora pistillata, Pavona cactus and Oculina arbuscula. Herbivory was assessed by end-point PCR amplification of algae-specific 18S rRNA gene fragments purified from coral tissue genomic DNA extracts. The ability to capture microalgae varied with coral and algal species and could not be explained by prey size or taxonomy. Herbivory was not detected in S. flexibilis and S. pistillata. P. globosa was the only algal prey that was never captured by any coral. Although predation defence mechanisms have been shown for Phaeocystis spp. against many potential predators, this study is the first to suggest this for corals. This study provides new insights into herbivory in symbiotic corals and suggests that corals may be selective herbivorous feeders.
Peer review: yes
DOI:  10.1111/mec.12486
ISSN: 0962-1083
Appears in Collections:CESAM - Artigos
DBio - Artigos

Files in This Item:
File Description SizeFormat 
Leal et al. - 2014 - Coral feeding on microalgae assessed with molecula.pdf120.28 kBAdobe PDFrestrictedAccess

Formato BibTex MendeleyEndnote Degois 

Items in DSpace are protected by copyright, with all rights reserved, unless otherwise indicated.