I have a challange for the Modders. there is no reward.
There is a game Called Unreal world RPG, a rouge like game where you must fish, hunt, trap and trade.
The Challenge is this. Make a mod on Oblivion that will add nets and fishing rods, small game like squirrels, Foxes, Hares and grouse. Add fish like sturgeon, pike, bass and peach, that Can be caught with a net or fishing rods. Make a Fishing skill and a trapping skill. Add A loop snare, dead-fall and Trap pit to catch small game and deer. Make Furs worth more money.
You may wish to do research on this.