| Carnivores (predator species) | Nearctic River Otter Lontra canadensis (n = 46; 46 tail, and 19 footpad samples) |
| Fishes (prey) | |
| Clupeiformes | Gizzard Shad Dorosoma cepedianum (n = 6) |
| Cypriniformes | Asian CarpaHypophthalmichthys nobilis (n = 5) |
| Hornyhead Chub Nocomis biguttatus (n = 3) |
| Creek Chub Semotilus atromaculatus (n = 7) |
| Perciformes | Greenside Darter Etheostoma blennioides (n = 6) |
| Bluegill Lepomis macrochirus (n = 10) |
| Redear Sunfish Lepomis microlophus (n = 9) |
| Smallmouth Bass Micropterus dolomieu (n = 7) |
| Largemouth Bass Micropterus salmoides (n = 6) |
| White Crappie Pomoxis annularis (n = 1) |
| Black Crappie Pomoxis nigromaculatus (n = 4) |
| Siluriformes | Black Bullhead Ameiurus melas (n = 8) |
| Blue Catfish Ictalurus furcatus (n = 8) |
| Channel Catfish Ictalurus punctatus (n = 8) |
| Brindled Madtom Noturus miurus (n = 2) |
| Molluscs (prey) | Threeridge Amblema plicata (n = 2) |
| Asian Clam Corbicula flumineaa (n = 10) |
| Wabash Pigtoe Fusconaia flava (n = 10) |
| Fat Mucket Lampsilis siliquoidea (n = 10) |
| Round Pigtoie Pleurobema sintoxia (n = 5) |
| Amphibians (prey) | Cricket Frog Acris crepitans (n = 10) |
| Western Chorus Frog Pseudacris triseriata (n = 1) |
| American Bullfrog Rana catesbeiana [Lithobates catesbeianus] (n = 1) |
| Crayfish (prey) | Northern Clearwater Crayfish Orconectes propinquus (n = 10) |
| Virile Crayfish Orconectes virilis (n = 4) |