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The Guardian Environment

‘They ate the shrimp, they even ate the crab’: Thai fishers count the cost of a voracious invader

Blackchin tilapia, an invasive species from west Africa, has spread to 19 provinces in Thailand, disrupting local ecosystems and threatening the livelihoods of fishers and shrimp farmers. The fish have caused significant damage by consuming native species and aquatic life, leading to economic and environmental challenges. Some chefs are exploring ways to use the tilapia in cooking as a potential solution. Efforts are underway to find sustainable methods to manage the growing population of this invasive species.

What happened

Blackchin tilapia, an invasive fish from west Africa, has spread across 19 provinces in Thailand, disrupting local ecosystems and harming shrimp farming and fishing livelihoods.

Why it matters

The fish is outcompeting native species and destroying livelihoods, prompting efforts to find sustainable solutions, including using the fish in cooking.

Why it belongs here

This story highlights the challenges of invasive species and the creative, community-driven approaches being explored to manage their impact.

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