- There's been a 79% decrease in whale sharks spotted in waters off southeast Mozambique
- Climate change and unsustainable fishing methods are main factors in this decline
- Locals fishermen, scientists and conservationists are working together to intervene.
(CNN)A small fishing boat bobbing in the Mozambique Channel might look like a vulnerable site -- especially when compared to what lies beneath it. But lurking below the whale shark -- the largest fish in the world -- is no threat to these fishermen; nor they to it. In fact, these locals might just be the key to saving this majestic creature.