When I rebuilt my pond several years ago I wanted a similar predator such as Catmandoo -Ken describes. I wanted a predator that did not get real large, would reproduce moderately and preyed primarily on just the smaller fish such as YOY yellow perch. My homework found a place that provided that fish, the Suwannee bass at Zetts Fish Farm Drifting PA. When I was ready to order they quit handling this fish.
There are subspecies of bass as primarily stream dwellers that stay smaller and will survive in ponds, max size in (): Guadalupe bass (record-3.6lb 18" see below), Redeye bass (10"-11" record 3 lb 2 oz), Shoal bass (6.0lb) and Suwannee bass (16.5", 3.5lb). Problem is no one raises any of them. This would be a small niche market for someone with an extra small pond or two and wanted to make a few dollars selling some of these speciality small predators. Greg Grimes???
See link for examples of these fish:
http://www.roughfish.com/~roughfis/group-clone/102
http://anglerslifelist.com/taxon/suwannee-basshttp://www.georgiariverfishing.com/GAarticles/WakullaSuwannees/WakullaSuwannees.htmGuadalupe Bass
http://jacksonkayak.com/blog/2012/02/23/the-plight-of-the-guadalupe-bass/http://www.bio.txstate.edu/~tbonner/txfishes/micropterus%20treculii.htm
http://www.statesymbolsusa.org/Texas/Fish_Guadalupe_Bass.htmlRedeye Bass
http://nas.er.usgs.gov/queries/factsheet.aspx?SpeciesID=395http://www.outdooralabama.com/fishing/freshwater/fish/bassblack/redeye/fishing.cfmhttp://www.dnr.sc.gov/fish/species/redeyebass.htmlhttp://www.outdooralabama.com/fishing/freshwater/fish/bassblack/redeye/ 
