Removal of large shark species by fishers may lead to explosions in smaller shark species

Sharks influence fish communities at coral reefs

The research team from University of Western Australia arrived at this conclusion after a study involving two coral reefs. At one of the reefs (Scott Reef), shark hunters had been legally permitted to hunt sharks while the other reef (Rowley Shoals) was situated in a marine protected area.

Rob Stewart promotional photo

[update] Sharkwater director Rob Stewart's body found

Stewart is best known for his 2006 documentary Sharkwater in which he examined and exposed the shark-hunting industries of the world and the effect upon the ocean ecosystem.

Rob Stewart, 37, was diving with a small group on the wreck of the Queen of Nassau near Alligator Reef off Lower Matecumbe Key in about 225 feet of water, his sister Alexandra Stewart told Miami Herald on Wednesday morning. He was filming an installment of his Sharkwater documentary series, she said.