The Ocean Health Index is like the thermometer of the ocean. It will allow us to take the temperature to know what is going on at the global level, trying to integrate different impacts, including overfishing, invasive species, coastal development, and climate change.

The ocean is like a checking account where everybody withdraws but nobody makes a deposit. This is what's happening because of overfishing.

When I was six, all I dreamt about was becoming a diver on Jacques Cousteau's boat, the famous Calypso.

Most of the reefs [around Christmas Island] are dead, most of the corals are dead, overgrown by algae, and most of the fish are smaller than the pencils we use to count them.

When I was a kid, Jacques Cousteau was my hero and the person who inspired me to become an underwater explorer. I have many other people who inspired me after him, but he is still my all-time hero.

What better way to learn about life in the ocean--and how we are changing it--than through stories of blind zombie worms, immortal jellyfish, and unicorns of the sea? The Extreme Life of the Sea is an insightful book that inspires awe and wonder about our ocean, and brilliantly shows us the immense possibilities of life on Earth.

I dream of diving in two places where I have not been yet. One is Antarctica, because of its crystal clear waters and amazing fauna, in addition to the ice cathedrals. The other is the Arctic, where I'd like to see the northernmost kelp forests.