There are 113 different kinds of creatures to catch. Most of them are fish but there are a few others like turtles, crabs, and newts. You don't have to find all 113 in order to get the River King to appear. Some of the fish will appear in multiple maps, while others won't be catchable until you return to the map later with different equipment and a higher Fishing Technique level.
| Aburahaya | Albino Itou | Cherry Salmon |
| Akaza | Iwana | Takahaya |
| Amago | Big Iwana | Rainbow Trout |
| Amemasu | Oshorokoma | Haze |
| Ayu | Kajika | Yamame |
| Itou | River Trout | Crab |
| Big Itou | Gogy | Newt |
| Itoyo | Loach | Herabuna |
| Itomoroko | Tomiyo | Big Herabuna |
| Eel | Catfish | Killifish |
| Carp | Black Bass | Motsugo |
| Sand Loach | Monster Bass | Snakehead |
| Tanago | Bluegill | Prawn |
| Tsuchifuki | Pejerrey | Crawfish |
| Fighting Fish |
| Pirarucu | Coelacanth | Gar Pike |
| Alligator Gar | River King | Albino Gar Pike |
| Silver Arowana | Freshwater Ray | Royal Knife Fish |
| Black Arowana | Sterlet | Cuban Gar |
| Asian Arowana | Butterfly Fish |