Eats

• Arthropods (Arthropoda)
• Gastropods (Gastropoda)
• Longhorn Beetles (Cerambycidae)
• Ground Beetles (Carabidae)
• True Weevils (Curculionidae)
• Butterflies And Moths (Lepidoptera)
• Isopods (Isopoda)
• Predaceous Diving Beetles (Dytiscidae)
• Carpenter And Sugar Ants (Camponotus)
• House Flies And Allies (Muscidae)
• Grasshoppers, Crickets, And Katydids (Orthoptera)
• Water Scavenger Beetles (Hydrophilidae)
• Water Boatmen (Corixidae)
• (Menidia)
• Sap-feeding Beetles (Nitidulidae)
• Giant Water Bugs (Belostomatidae)
• Mayflies (Ephemeroptera)
• Rove Beetles (Staphylinidae)
• European Carp (Cyprinus carpio)
• Ants (Formicidae)
• Stink Bugs (Pentatomidae)
• True Bugs (Heteroptera)
• (Belostoma)
• Spiders (Araneae)
• Cyprinids (Cyprinidae)
• True Horse Flies (Tabanus)
• Metallic Wood-boring Beetles (Buprestidae)
• (Euschistus)
• Typical Sculpins (Cottidae)
• Leaf Beetles (Chrysomelidae)
• Click Beetles (Elateridae)
• Non-biting Midges (Chironomidae)
• (Tropisternus)
• Water Striders (Gerridae)
• Decapods (Decapoda)
• (Nereis)
• Amphipods (Amphipoda)
• Ants, Bees, Wasps, And Sawflies (Hymenoptera)
• Dragonflies (Anisoptera)
• Polychaete Worms (Polychaeta)
• Insects (Insecta)
• Caddisflies (Trichoptera)
• Clitellates (Clitellata)
• Animals (Animalia)
• Beetles (Coleoptera)
• Crabs, Lobsters, And Allies (Pleocyemata)
• Crustaceans (Crustacea)
• Horned Grebe (Podiceps auritus)
• Bay Pipefish (Syngnathus leptorhynchus)
• Ray-finned Fishes (Actinopterygii)
• (Hydrochara obtusata)
• (Nabis)
• Tessellated Darter (Etheostoma olmstedi)
• (Agabus)
• Milky Backswimmers (Notonecta)
• (Amara)
• (Hydroporus)
• (Percoidei)
• (Saprinus)
• (Heterocerus)
• (Anonyx multiarticulatus)
• (Gyrinidae)
• Freshwater Sculpins (Cottus)
• (Aphodius)
• (Stenolophus lecontei)
• (Berosus)
• (Myodocha serripes)
• (Peltodytes duodecimpunctatus)
• (Mysis stenolepis)
• (Haliplus)
• (Calliopiidae)
• Sand Shrimp (Crangon septemspinosa)
• (Mancasellus)
• (Hydrobius fuscipes)
• (Peltodytes callosus)
• (Palaemonetes vulgaris)
• (Chilothorax distinctus)
• (Anguilla)
• (Rhynchophorus)
• (Farfantepenaeus brasiliensis)
• (Ceratina dupla)
• (Hygrotus)
• (Gammaridae)
• (Cambarus)
• (Eusiridae)
• (Colymbetes)
• (Lasiglossum)
• Roughback Sculpin (Chitonotus pugetensis)
• (Crangon franciscorum)
• (Gammarus)
• (Stolephorus)
• Threespine Stickleback (Gasterosteus aculeatus)
• (Hydrobius melaenus)
• (Haliplus ruficollis)
• (Phaeogenes)
• (Campoplex)
• (Colymbetes sculptilis)
• (Peltodytes edentulus)
• (Tiphia)
• (Tomicus)

Preys on

• Ray-finned Fishes (Actinopterygii)
• Woolly Sculpin (Clinocottus analis)
• Bay Pipefish (Syngnathus leptorhynchus)
• Animals (Animalia)
• (Pandalus danae)
• (Alitta)
• Tidepool Sculpin (Oligocottus maculosus)
• (Pholidae)

Eaten by

• Coots (Fulica)
• Common Raven (Corvus corax)
• Horned Grebe (Podiceps auritus)
• Bald Eagle (Haliaeetus leucocephalus)
• Peregrine Falcon (Falco peregrinus)
• Northern Goshawk (Accipiter gentilis)
• White-tailed Eagle (Haliaeetus albicilla)
• Eurasian Marsh-harrier (Circus aeruginosus)
• (Fulica atra)
• (Aquila clanga)
• Great Skua (Stercorarius skua)
• Western Swamphen (Porphyrio porphyrio)
• Herring Gull (Larus argentatus)
• Pomarine Jaeger (Stercorarius pomarinus)
• Yellow-legged Gull (Larus michahellis)
• Eurasian Eagle-owl (Bubo bubo)
• Long-tailed Jaeger (Stercorarius longicaudus)
• (Ichthyaetus ichthyaetus)
• Snowy Owl (Bubo scandiacus)
• Parasitic Jaeger (Stercorarius parasiticus)
• Caspian Gull (Larus cachinnans)
• Tawny Owl (Strix aluco)
• Carrion Crow (Corvus corone)
• Rook (Corvus frugilegus)
• Wild Boar (Sus scrofa)
• European Mink (Mustela lutreola)
• Western Polecat (Mustela putorius)
• Steppe Ratsnake (Elaphe dione)
• (Elaphe situla)
• Desert Monitor (Varanus griseus)
• (Hierophis viridiflavus carbonarius)
• Black Headed Snake (Telescopus nigriceps)
• East-four-lined Ratsnake (Elaphe sauromates)