Authors(s)	Petersen A.
Year	1981
Title	Breeding biology and feeding ecology of Black Guillemots. Unpublished D.Phil. thesis Oxford University 378pp

• Ammodytes marinus
• Ammodytes tobianus
• Clupea harengus
• Cyclopterus lumpus
• Hyperoplus lanceolatus
• Liparis liparis
• Myoxocephalus scorpius
• Taurulus bubalis