Dibothriocephalus ditremus (Creplin 1825) Lühe 1899

are endoparasites of

• Global Biotic Interactions: Mergus merganser Linnaeus 1758 (Common Merganser)
• Global Biotic Interactions: Salvelinus namaycush (Walbaum 1792) (lake trout)
• Global Biotic Interactions: Salvelinus malma (Walbaum 1792) (Dolly Varden)
• Global Biotic Interactions: Pungitius pungitius (Linnaeus 1758) (ten-spined stickleback, nine-spined stickleback)
• Global Biotic Interactions: Oncorhynchus clarkii (Richardson 1836) (cutthroat trout)

have host

• Global Biotic Interactions: Salvelinus alpinus (Linnaeus 1758) (Arctic Char)
• Global Biotic Interactions: Salvelinus alpinus (Linnaeus 1758) (Arctic Char)
• Global Biotic Interactions: Salvelinus alpinus (Linnaeus 1758) (Arctic Char)
• Global Biotic Interactions: Coregonus widegreni Malmgren 1863 (Pool whitefish)
• Global Biotic Interactions: Salvelinus alpinus (Linnaeus 1758) (Arctic Char)

parasitize

• Global Biotic Interactions: Coregonus peled (Gmelin 1789) (Northern Whitefish)
• Global Biotic Interactions: Salmo trutta Linnaeus 1758 (Brown Trout)
• Global Biotic Interactions: Gavia arctica (Linnaeus 1758) (Arctic Loon)
• Global Biotic Interactions: Oncorhynchus nerka (Walbaum 1792) (Sockey Salmon)
• Global Biotic Interactions: Salmostoma novacula (Valenciennes 1840) (Novacula razorbelly minnow)