Protecting Fragile Ecosystems
- Imagine snorkeling in crystal-clear waters, surrounded by vibrant coral reefs teeming with life. Now picture a mangrove forest, its tangled roots sheltering fish and absorbing the force of ocean waves.
- These ecosystems are not just beautiful, they are vital to our planet’s health. But they are under threat.
Coral Reefs: Threats and Management
Threats to Coral Reefs
- Overfishing
- Disrupts food chains and reduces biodiversity.
- Removes key species like herbivorous fish, allowing algae to overgrow and smother corals.
- Coral Bleaching
- Triggered by rising sea temperatures.
- This causes corals to expel symbiotic algae, losing their colour and vital energy source.
- Pollution
- Runoff from agriculture introduces harmful chemicals.
- Sedimentation reduces sunlight, hindering photosynthesis.
The Great Barrier Reef in Australia has lost over 50% of its coral cover due to bleaching events and pollution.
Management Strategies for Coral Reefs
- Marine Reserves
- Protect biodiversity by restricting harmful activities like fishing and mining.
- Allow fish populations to recover, benefiting nearby fishing areas.
- Artificial Reefs
- Structures like sunken ships or concrete blocks provide habitats for marine life.
- Help divert pressure from natural reefs.
- Sustainable Tourism
- Educates visitors on reef conservation.
