Table 1 River otter and its candidate prey species evaluated in the study, Illinois, USA
From: Fatty acid analysis as a tool to infer the diet in Illinois river otters (Lontra canadensis)
Taxonomic division | Scientific name |
|---|---|
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) |