i had the same problem from two places i fished last summer. one farm pond and one creek in the state of VA. fish looked normal till i started cleaning them. i found little seed looking things that opend up to worm like creatures. i even asked a bioligest what it was but he didnt really know. if any one knows what this please e mail me and tell me. my concern is this i understand most if not all living things have parasites and worms of sorts are these fish ill and should the meat be tossed away? i know i threw away some nice fish last year because of this. who kows they may have been ok to eat but it freaked me out.