Prolly wont be much help to ya but kinda funny. Once I put a Seado in the pond to tune it (really just playin) alil. Made prolly about 20 - 30 doughtnuts as fast as I could in there. When I got off it the pond edge was covered in crawdads tryin to get away. Could make for a pretty quick harvest if needed.
You sound a little like my friend that would take a seadoo and make donuts wider and wider till he would have all his FA slung out on the banks, that was his method of clearing the pond of it.