Arona
Perciformes - Perches
Salmoniformes - Salmons and Trouts
Esociformes - Pikes
Siluriformes - Catfishes
Cypriniformes - Carps
Gadiformes - Cods
Clupeiformes - Herrings
Anguilliformes - Eels and morays
Scorpaeniformes - Mail-cheeked fishes
Pleuronectiformes - Flatfishes
Gobiiformes - Gobies
Gasterosteiformes - Sticklebacks
Osmeriformes - Smelts
Lamniformes - Mackerel sharks
Petromyzontiformes - Lampreys
Perciformes - Perches
Salmoniformes - Salmons and Trouts
Esociformes - Pikes
Siluriformes - Catfishes
Cypriniformes - Carps
Gadiformes - Cods
Clupeiformes - Herrings
Anguilliformes - Eels and morays
Scorpaeniformes - Mail-cheeked fishes
Pleuronectiformes - Flatfishes
Gobiiformes - Gobies
Gasterosteiformes - Sticklebacks
Osmeriformes - Smelts
Lamniformes - Mackerel sharks
Petromyzontiformes - Lampreys
The Arona River is a small river, primarily flowing through the northeastern part of the Latvia.