The rivers and lochs in the Loch Lomond catchment support a varied fish population of both native and introduced fish species. At present there are 21 recorded species.

NATIVE

Common Name (Scientific Name)

Powan (Coregonus lavaretus)
Sea/Brown trout (Salmo trutta)
Atlantic salmon (Salmo salar)
Sea lamprey (Petromyzon marinus)
River lamprey (Lampetra fluviatilis)
Brook lamprey (Lampetra planeri)
Pike (Esox lucius)
Minnow (Phoxinus phoxinus)
Roach (Rutilus rutilus)
Stone loach (Noemacheilus barbatulus)
Eel (Anguilla anguilla)
Three-spined stickleback (Gasterosteus aculeatus)
Ten-spined stickleback (Pungitius pungitius)
Eurasian perch (Perca fluviatilis)
Flounder (Platichthys flesus)

INTRODUCED

Common Name (Scientific Name)

Rainbow trout (Oncorhynchus mykiss)
Crucian carp (Carassius carassius)
Gudgeon (Gobio gobio)
Chub (Leuciscus cephalus)
Dace (Leuciscus leuciscus)
Ruffe (Gymnocephalus cernuus)