How to identify an Alligator Gar
It is certainly one of the most distinctive freshwater species of fish. It can be distinguished from all other gars by the two rows of teeth in the upper jaw, its broader snout, and its size when fully grown. All other gars have one row of teeth in the upper jaw. In most other respects all gars are very similar in appearance, with a long body, a long, toothy snout, and a single dorsal fin that is far back on the body above the anal fin and just before the tail. The tail is rounded and pectoral, ventral, and anal fins are fairly evenly spaced on the lower half of the body. The gars most closely resemble the fishes of the pike family (muskellunge, northern pike, and the pickerels, Esox spp.) in body shape and fin placement. In the pike family, the tail is forked not rounded.
Where to catch Alligator Gar
The alligator gar is an inhabitant of large rivers, bays, and coastal marine waters from the western Florida panhandle (the Econfina River) west along the Gulf of Veracruz, Mexico, and north in the Mississippi River drainage as far as the lower reaches of the Ohio and Missouri rivers. It has been reported from Lake Nicaragua and the Sapoa River. The following list includes additional details on where to catch this fish: