Fish Cleaning Stations?

Hi, does anybody know what they do with the fish parts from the cleaning stations. It makes good plant fertilizer and I'm considering a large scale operation if I can get a cheap, steady supply from somewhere. I live in the Fort Smith area, South toward Waldron in the tiny town of Mansfield on Hwy 71. Sent an email to the AG&F but no reply as of yet.

If you happen to know me and see this post, bring me your leftovers from cleaning your fish and I'll set you up with a fig tree.

The ones here belong to Corps of Engineers . The cleaning stations get pumped out from time to time when tanks get full . I might could fix you up this winter with scraps and cull fish if I set my nets .