Bowfin (Amia calva), family Amiidae, order Amiiformes, Detroit River, MI, USA
This fish was caught as part of a scientific survey, and was released after the photo was taken.
Other names for this species include: mudfish, mud pike, dogfish, grindle, grinnel, swamp trout, and choupique.
This fish is a member of an ancient lineage that dates back to the early Triassic. (This and another species of bowfin are the only 2 members of this group that are still around).
Bowfins are capable of breathing oxygen from the air (with their swim bladder), as well as water (with their gills).
photograph via: Alpena Fish and Wildlife Conservation Office














