It's clear to everyone that we need some rules because we've been knocking the hell out of the shark population.

Research has shown that the sharks of northern California are genetically different to other shark populations.

But as the sport caught on the inevitable set in: a fall, perhaps even a crash, in the shark population.

But there is little data on basking shark populations.

Researchers are now reporting repercussions beyond the declining shark populations.

Reducing the local shark populations is believed to reduce the chance of an attack.

Cumberland Island is thought to have a high shark population.

Projections suggested the shark population would fall to 0.1% of pre-exploitation levels within 20 years without additional conservation measures.

Mr. Chiquito says he knows the shark population is being cut back.

Some years ago in Tasmania, a shark population crashed because of overfishing.