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Interactions among wildtype and heat-evolved photosymbionts shape performance of coral recruits2.67 MB
Published (Version of record)CC BY-NC V4.0, Open Access
Published (Version of record)CC BY V4.0, Open
Journal article
Interactions among wildtype and heat-evolved photosymbionts shape performance of coral recruits
Coral reefs, Vol.44, pp.643-655
25/02/2025
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Abstract
Anthropogenic climate change has driven many coral reef ecosystems to the brink of collapse as extreme temperature events cause widespread bleaching and mortality. Interventions that boost coral resilience are being developed to help restore reefs, and one such intervention is the manipulation of a coral’s symbiotic algae (which greatly affects their host’s physiology). New experimentally evolved symbiont strains have shown promise in increasing their host’s thermal tolerance, but how they will perform in juvenile corals when other strains are present is unclear. This study investigates the uptake and establishment of experimentally evolved Cladocopium proliferum and Durusdinium trenchii in mixed inocula and describes the effects hosting multiple symbiont strains has on the growth and survival of juvenile corals. Our results reveal that while both strains in the mixed culture inocula were taken up, most recruits were dominated by D. trenchii . Corals hosting D. trenchii over C. proliferum also displayed faster growth despite previous studies showing the opposite. We show that the costs and benefits of hosting mixed communities are highly dependent on the identities of the individual strains therein and suggest the compatibility of symbiont–symbiont–host assemblages should be assessed before being used for restoration.
Details
- Title
- Interactions among wildtype and heat-evolved photosymbionts shape performance of coral recruits
- Creators
- Elizabeth A. Ivory - Australian Institute of Marine ScienceJos C. Mieog - Southern Cross UniversityMatthew R. Nitschke - Australian Institute of Marine ScienceMadeleine J. H. van Oppen - Australian Institute of Marine ScienceDavid Abrego - Southern Cross University
- Publication Details
- Coral reefs, Vol.44, pp.643-655
- Publisher
- Springer Nature
- Number of pages
- 13
- Grant note
- Open Access funding enabled and organized by CAUL and its Member Institutions. Reef Restoration and Adaptation Program, HDR scholarship from Southern Cross University, Australian Research Council Laureate Fellowship, FL180100036, Madeleine J. H. van Oppen, Royal Society Te Apārangi Marsden Fast Start grant, 21-VUW-021, Matthew R. Nitschke.
- Identifiers
- 991013264099102368
- Copyright
- © The Author(s) 2025
- Academic Unit
- Faculty of Science and Engineering; National Marine Science Centre; Science
- Language
- English
- Resource Type
- Journal article