A marine biology student is trying to end an extreme way of fishing in Colombia.

Blast fishing is a form of fishing in which explosives are used to increase a fisherman’s catch.

In addition to killing hundreds of fish, it also shatters coral reefs. In many places it’s illegal.

But Colombia is a country where fishermen still employ the practice.

Colombia has coastlines along both the Pacific Ocean and the Caribbean Sea. Its waters contain 2,600 marine species.

Meet Our Game Changer Yassandra Barrios.