Lot's of people in Louisiana eat gar. We make gar balls. Good stuff. Gar pick up toxins on their own from the water in which they live. Any type PCB's etc in a reservoir seem to collect in the gar first and with a higher level than other fish. We have a local lake, get this, it is the city water supply, that has a warning, do not eat the gar due to the high levels of PCB's. But we drink the water with no effect? It seems gar then catfish pick the toxins first, then sport fish, bass and bream.
If you have never tried it, Google gar ball recipes and try them.
Good stuff;
Billy