The Bahamas has mangrove nurseries, coral reefs, shallow sea grass beds, and deep oceanic trenches - all perfect ecosystems for sharks. Photographing multiple shark species in exquisite water was the assignment I had dreamed about from the start.
I think that most people would associate big schools of fish with healthy coral reefs. At Kingman, the predators keep the herd thin, so there aren't a lot of big fish schools.
As a young boy, I was very interested - as I still am - in all sorts of adventure and exploration. I thought about being an astronaut, a dinosaur scientist, or marine biologist, but I clearly was drawn to the ocean and to the water.
For a photographer, sharks are a stirring subject, possessing a perfect blend of grace and power. They have been sculpted by evolution and are ideally suited for whichever ecosystem they inhabit, from coral reefs to the open ocean.
For where Kingman is located, the coral cover is unique in the world. I refer to it as a universe of hard corals. You are not going to find soft corals like in the western Pacific - places like Indonesia, Palau, or Fiji.
Sharks don't particularly have a great interest in divers. It seemed that in a normal dive, I would jump in the water, and one or two gray reef sharks would swim in and kind of check me out - and then they would keep their distance. So they weren't particularly threatening or anything to be afraid of.
For decades I have tried to peel back the layers of mystery surrounding many marine creatures, though most have held tightly to their secrets. One animal that keeps me pondering is the shark. Spellbound by these enigmatic animals since I first encountered them in New England, I never tire of watching their special blend of power and grace.
I flipped through a book on harp seals in the late 1970s and saw images of them swimming in emerald green pools of water surrounded by huge sheets of ice. Right then I was hooked, and I knew this was a story I wanted to do.
I was the first journalist allowed on a hunting boat during harp seal season in almost 15 years. Around the late 1970s, white coat pups became the poster child for the anti-fur movement, and by the '80s, the media was lambasting the hunters for killing them.
Kneeling on the sea bottom in a place known as Tiger Beach, I watched a 12-foot- long female tiger shark cruise over the turtle grass with three silver bar jacks swimming in front of her nose.
I still think there's a big part of the population that has a lot of misinformation about sharks. But I think it's beginning to change a little bit. As good information about sharks permeates popular culture, things may start to change.
On Cape Cod, great white shark stocks have been growing, or at least becoming more concentrated, because of the multiplying numbers of seals around Monomoy Island. We are fortunate to have such abundance of these sharks in our own waters. Around the globe, we are killing in excess of 100 million sharks each year.
I have photographed sharks in waters around the globe, and I always want more and yearn to peer deeper into their world. To feed my passion and to raise awareness, I developed a story about sharks for 'National Geographic' magazine.
Under the snowcapped mountains of Fiordland National Park, freshwater streams empty into the saltwater fiords, creating a unique ecosystem. This is a heavily wooded park, so the water in the streams is stained with tannin, a substance found in plants that makes clean water seem dirty, though it isn't.
Remove the predators, and the whole ecosystem begins to crash like a house of cards. As the sharks disappear, the predator-prey balance dramatically shifts, and the health of our oceans declines.
I swam with my first shark in the 1980s. I was 20 miles off the coast of Rhode Island, working with a group of marine scientists. Late in the day, a 5-foot long blue shark swam into our chum slick. For the next hour, I marveled at the animal's stunning indigo color and the elegant way she moved effortlessly through the sea.
I think that going to the beach as a child, being in the water and smelling that salt air and hearing the seagulls, it had a real calming effect. But also, it was a mysterious thing - I remember wondering what was under those dark New England seas.
New England waters are some of my favorite - they are some of the richest waters because they are temperate waters and nutrient-rich, and therefore provide food for so many animals, from giant whales to sharks to everything else.
