This may sound like a stupid question but it's been bothering me lately:

While fishing at a local pond, I always notice bubles periodically coming up from the same spot, time after time after time.  These are small bubble by the way.  What's causing them?  Thanks.

could be a  turtle or veggation

Up here in Maine we have freshwater clams and usually if there small bubbles thats what it is. If bigger then could be turtle, beaver  but I'm sure there are other things not coming to me that other folks will elaborate on hope this helps.

                                                                                                      Stroz

It could be someone sent to sleep with the fishes.  

If it is happening regularly from the same location, it is probably gas escaping from rotting vegitation.

Shad master is right. Leaves and dead vegetation on the bottom decompose and form gasses like methane. The bubbles are probably dead plants rotting. If you have ever snagged a stick or branch and brought it off of the bottom, you probably noticed bubbles coming from where it was laying. Those bubbles were from rotting leaves and had just been trapped under a layer of them.

its most likely an underwater spring...there could be some bass located near it

Sand bottoms cause lots of bubbles, air easily gets trapped in the sand.

The bottom is sand, and it's located in about 5-6 foot of water on a ridge that is about a foot above surrounding area.  It's not a beaver or turtle, it's an exact point, but i've never snagged any vegitation from it.

Definitely a spring or trapped gasses then.

Shad master is right. Leaves and dead vegetation on the bottom decompose and form gasses like methane. The bubbles are probably dead plants rotting. If you have ever snagged a stick or branch and brought it off of the bottom, you probably noticed bubbles coming from where it was laying. Those bubbles were from rotting leaves and had just been trapped under a layer of them.

What it is in every place I fish. Air pockets. I call it swamp gas.

Submerged roots of what was a tree or bush generate gases that form pockets in soil. Burrowing animals or live plant roots penetrate the pockets to release the gases, or the gas simply works it's way through the mud. The soil under your home is probably emitting gas, in some cases hazardous gases. All land has gas under the surface, and when a lake is built over it the gas doesn't stop escaping.

Jim

or it's turtles.....

Jacuzzi.

I've seen this happen when a big flathead lays down in the mud. It stirs up the bottom and releases air bubbles.

probably an underwater spring. In my pond, wherever bubbles apear, usually a snapping turtle follows, but yours is in a specific spot, so i doubt that.