I started with the No-Gloves since I shoot fingers for everything.
They are just fine.

Then I just used a regular leather shooting glove, but the water and slime ruin them in short order.

Now I usea pair ofsynthetic (fake)leather mechanics gloves http://www.mechanix.com/detail.asp?product_id=MFFthatyou can find at home improvement stores. The finger material on them holds up very well, and doesn't get stiff or rot when it gets wet. Also great hand protectors for the fish's spines and gar's scales and teeth.

The down sides to any glove is the smell, as Christine mentioned, and also that once your hands are wet, they are going to stay that way for a while.