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Geography Optional 300+ Score Pack · Model answer
Discuss the concept of coral bleaching, its recovery and macroalgal regime shifts due to this process.
- UPSC 2020
- Oceanography
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Bleaching, recovery and regime shift are three stages of one story: after heat strips a reef of its living coral, the reef either returns to coral or flips to an alternative state dominated by fleshy macroalgae (seaweeds such as Sargassum, Dictyota and Lobophora).
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 Concept of Coral Bleaching
- Recovery
- Recovery of the colony (weeks to months)
- Recovery of the reef (years to decades)
- Macroalgal Regime Shifts
- How Common Are Macroalgal Shifts? — A Live Debate
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