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Geography Optional 300+ Score Pack · Model answer

Discuss the concept of coral bleaching, its recovery and microalgal regime shifts due to this process.

  • UPSC 2020
  • Oceanography

Coral bleaching is the breakdown of the mutualistic relationship between reef-building coral polyps and their symbiotic algae, causing the algae to be expelled or lost and the coral's white calcium-carbonate skeleton to show through its now-transparent tissue.

You are reading the opening of the model answer. The full answer is part of the Geography Optional 300+ Score Pack.

What the full answer covers

  • The Physiology of Bleaching — A Symbiosis Under Stress
  • Recovery Pathways
  • Post-Bleaching Regime Shifts — From Coral to Macroalgal Dominance
  • Ecological and Socio-Economic Consequences

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