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November 20, 2025PeerJOpen Access

El Niño-driven phase shift to algal dominance on Isla del Caño’s coral reefs: implications for urgent restoration

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Authors

CPCaroline V. PalmerSEShanttal Valeria Rodríguez EsquivelCPChristopher M. Parker

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Overview

Coral bleaching increased under El Niño, revealing declines in biodiversity with implications for conservation efforts.

Key Points

  • Coral bleaching prevalence reached approximately 23%, with significant shifts from coral to algal dominance observed.
  • Sea surface temperature increased by about 0.23 °C per decade, causing major coral declines and enhanced turf algae dominance.
  • Analysis included multivariate analyses and principal component analysis to understand benthic community changes and recovery potential.
  • Localized restoration strategies are essential to sustain biodiversity and ecological functions of vulnerable coral reefs in a changing climate.

Cite This Study

Palmer et al. (2025) studied this question.

synapsesocial.com/papers/6924f07fc0ce034ddc34ffc0https://doi.org/10.7717/peerj.20088
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