Shark

A shark is a aggresive Fish which can be found in the sea. Unlike other fish, a shark can be seen from the water's surface. You will be able to see the shark's fin.

A shark requires Level 6 fishing skill and a stronger rod.

There is a 1/16 chance of catching it, higher levels make it easier to catch.

There also is a 1/6 chance of catching a Shark Egg, which can be hatched by releasing it into the water or sold.

Coming in contact with a shark can smash your boat.

Radioactive Shark
Sometimes a shark may be radioactive, when a shark spawns there is a 1/8 odd chance of it being radioactive.

It can be determined from a green glow on the Shark's fin.

Touching it when swimming will poison you. When inside a boat, your boat will break aswell as the poison being released. The poison effect can be taken off by eating Food.

A Radioactive Shark is not edible but can be sold for double the price. Catching one also gives twice the skill points.

Trivia

 * Sharks are the only fish that can be seen before they are caught.
 * They are the first agressive mob/fish.