From Australian Oceans Data Network
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Heat-evolved microalgal symbionts increase thermal bleaching tolerance of coral juveniles without a trade-off against growth

Created 23/06/2025

Updated 23/06/2025

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This study was designed to test the effect of heat-evolved macroalgal symbionts against bleaching tolerance in juvenile corals in response to a simulated heatwave. Juveniles of the coral Acropora tenuis were infected with either wildtype (WT10) or heat-evolved (SS1 or SS8) strains of the Symbiodiniaceae species Cladocopium C1acro (formerly Cladocopium goreaui 2–4). The juveniles were maintained at ambient conditions (27°C) for 10 months at which time their size was measured. Growth, survival, and metabolism data were collected following a simulated heatwave (31°C for 41 days). Photographs and PSII maximum quantum yields (Fv/Fm) were collected throughout the heat stress period, stable isotope incubation and cell counts were carried out on day 39, and respirometry on days 40-41. Symbiodiniaceae cell densities per juvenile were quantified to assess bleaching. Statistical analyses were run in R and respirometry data was analysed using the respR package. Full methods and technical details are found in the paper https://ssrn.com/abstract=3981099

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Additional Info

Field Value
Title Heat-evolved microalgal symbionts increase thermal bleaching tolerance of coral juveniles without a trade-off against growth
Language eng
Licence Not Specified
Landing Page https://data.gov.au/data/dataset/804d0acd-5134-4e74-93a4-94a63d5c7601
Contact Point
Australian Ocean Data Network
reception@aims.gov.au
Reference Period 15/03/2024
Geospatial Coverage
Map data © OpenStreetMap contributors
{
  "coordinates": [
    146.862133,
    -19.10415
  ],
  "type": "Point"
}
Data Portal Australian Oceans Data Network

Data Source

This dataset was originally found on Australian Oceans Data Network "Heat-evolved microalgal symbionts increase thermal bleaching tolerance of coral juveniles without a trade-off against growth". Please visit the source to access the original metadata of the dataset:
https://catalogue.aodn.org.au/geonetwork/srv/eng/csw/dataset/heat-evolved-microalgal-symbionts-increase-thermal-bleaching-tolerance-of-coral-juveniles-witho