Scuba Diving magazine and Seiko Watches name Ken Stewart the 2018 Sea Hero of the Year for his work with Diving With a Purpose and the National Association of Black Scuba Divers.

Ned and Anna DeLoach are rock stars, with ­legions of fans who track them like groupies. Each year the beloved naturalists induct divers into the wonders of fish-ID surveys — and the importance of citizen science — during Marine Life Education weeks at Bonaire’s Buddy Dive Resort.

Brown seaweed known as sargassum amasses in the Caribbean in record numbers.

Shark conservationist Mauricio Hoyos is honored as a Sea Hero by Scuba Diving magazine for his work studying sharks and educating others.

Sharpen your coral identification skills with these tips on how to ID smooth flower coral.

Does flash photography harm small ocean creatures? Pygmy seahorse expert Dr. Richard Smith offers guidelines for photographing these fragile creatures.

Learn about the diet of hawksbill sea turtles, green sea turtles and loggerhead sea turtles so you can answer the question, what do sea turtles eat?

Researchers found more than 300 dead olive ridley sea turtles off the coast of Mexico, and they suspect ghost fishing nets may be the cause.

Underwater photographer Becky Kagan Schott earns Sea Hero honors from *Scuba Diving* magazine.