%0 Journal Article
%9 ACL : Articles dans des revues avec comité de lecture répertoriées par l'AERES
%A Terraneo, T. I.
%A Houlbrèque, Fanny
%A Arrigoni, R.
%A Longari, B.
%A Berumen, M. L.
%A Hume, B. C. C.
%A Fiat, Sylvie
%A Rodolfo-Metalpa, Riccardo
%A Payri, Claude
%A Voolstra, C. R.
%A Benzoni, Francesca
%T Coral-associated Symbiodiniaceae dynamics during the 2016 mass bleaching event in New Caledonia
%D 2024
%L fdi:010090707
%G ENG
%J Coral Reefs
%@ 0722-4028
%K Symbiodiniaceae ; Coral bleaching ; Species-specificity ; Next-generation ; sequencing ; ITS2 ; SymPortal
%K NOUVELLE CALEDONIE
%M ISI:001236493300001
%P [6 ]
%R 10.1007/s00338-024-02510-y
%U https://www.documentation.ird.fr/hor/fdi:010090707
%> https://www.documentation.ird.fr/intranet/publi/2024-07/010090707.pdf
%V [Early access]
%W Horizon (IRD)
%X The ecological success of shallow water corals hinges on their association with photosynthetic Symbiodiniaceae algae. This is affected by environmental drivers among which sea temperature is pivotal. In 2016, a prolonged heat wave challenged New Caledonia reefs triggering a severe bleaching event. Here, we tracked 72 coral colonies comprising two species of Pocillopora and Porites from a cross-shelf gradient during the event and subsequent recovery period. Symbiodiniaceae association over time was assessed using the ITS2 marker. Bleaching prevalence and photosynthetic efficiency showed that 83% of Pocillopora and 29% of Porites colonies were affected, with corals from a mid-shelf site having been most impacted. The majority of tracked colonies recovered by December 2016, with a recorded 33% mortality of Pocillopora, while Porites showed higher resilience. Consistent with previous studies, genotyping data suggest stable, species- and site-specific associations between corals and Symbiodiniaceae.
%$ 036 ; 082 ; 034