Macrozoarces americanus (Ocean Pout) preys on:
Crangon
Mysidae
Pandalidae
Decapoda
Gammaridae
Hyperiidae
Caprellidae
Isopoda
Cumacea
Cancer
Brachyura
Hydrozoa
Polychaeta
Echinodermata
Ophiuroidea
Holothuroidea
Ostreoida
Bivalvia
Echinoidea
Ammodytes marinus
Tridonta arctica
Merluccius bilinearis
Urophycis regia
Urophycis tenuis
Urophycis chuss
Myoxocephalus octodecemspinosus

Based on studies in:
USA, Northeastern US contintental shelf (Coastal)

This list may not be complete but is based on published studies.