Fishing

Fishing Rods

First craft a fishing rod, using string and wooden sticks.

How to Catch Fish

First find some water.

Any still water will do. River, ocean, swamp or underground lakes. You can even dig a hole and pour in a bucket of water!

Right-click to cast your line.

The red and white float (or "bobber") will bob slightly on the water.

Wait for a bite.

When a fish bites, you will see the float move violently and hear a splashing sound. Depending on your graphics settings, you may see a the trail of a fishmoving towards your hook just before the bite, as in the picture above.

Land your fish.

When you hear the splash, right click to land your fish. If get the timing right, you will see your fish come flying out of the water. If not, better luck next time!

What you can catch

Fish

Fish (Cod)

Sometimes called "Cod", this is the most common type of fish. It can be eaten raw, or cooked in a furnace to make it more nutritious.

Salmon

This is interchangeable with cod, and again can be cooked to make it better to eat.

Clownfish

Clownfish are the least useful fish. They can be eaten raw but that just makes you feel bad about eating Nemo.

Pufferfish

Don't eat this fish if you catch it! It will poison you and make you hungrier than you were before.
Pufferfish can be used to brew a Potion of Water Breathing.

Source: http://www.minecraft101.net