Nearly all the time I fillet at the River but sometimes when dipnetting I fillet elsewhere then have to deal with the carcasses. Can a person take them back and dump them in the River; I noticed a sign at a Campground that said to do that. However I thought I remember reading something that stated once you removed the fish from the river (site) you need to get rid of carcass somewhere else. Like the fish dumpster in Kenai. ????