Diplocotyle olrikii Krabbe 1874

are endoparasites of

• Global Biotic Interactions: Pseudopleuronectes americanus (Walbaum 1792) (Winter flounder)
• Global Biotic Interactions: Hippoglossoides platessoides (Fabricius 1780) (long rough dab)
• Global Biotic Interactions: Microgadus tomcod (Walbaum 1792) (Atlantic Tomcod)
• Global Biotic Interactions: Coregonus autumnalis (Pallas 1776) (Arctic Cisco)
• Global Biotic Interactions: Echinogammarus pirloti

parasitize

• Global Biotic Interactions: Salvelinus malma (Walbaum 1792) (Dolly Varden)
• Global Biotic Interactions: Oncorhynchus masou (Brevoort 1856) (Cherry salmon)
• Global Biotic Interactions: Platichthys flesus (Linnaeus 1758) (Baltic Flounder)
• Global Biotic Interactions: Oncorhynchus gorbuscha (Walbaum 1792) (Pink Salmon)
• Global Biotic Interactions: Spinulogammarus ochotensis