Diet Overlap

Salmo trutta (Brown trout)
Mergus serrator (Red-breasted Merganser)

Common Diet

Gasterosteus aculeatus (Alaskan stickleback)
Salvelinus alpinus (Arctic charr)

Common Habitat

Haapasuo-Syysniemi-Rutajärvi-Kivijärvi
Keiteleen Listonniemi
Lago di Mezzola e Pian di Spagna
Vättern (östra)