Diet Overlap

Lamna nasus (Porbeagle shark)
Larus argentatus (Herring Gull)

Common Diet

Gadus morhua (rock cod)
Illex illecebrosus (northern shortfin squid)

Common Habitat

Carmarthen Bay and Estuaries/ Bae Caerfyrddin ac Aberoedd
Forillon National Park
Y Fenai a Bae Conwy/ Menai Strait and Conwy Bay

Attributes / relations provided by
♦ 1Analysis of stomach contents of the porbeagle shark (Lamna nasus Bonnaterre) in the northwest Atlantic, W. N. Joyce, S. E. Campana, L. J. Natanson, N. E. Kohler, H. L. Pratt Jr, and C. F. Jensen, ICES Journal of Marine Science, 59: 1263–1269. 2002
♦ 2Diets of adult and chick Herring Gulls Larus argentatus argenteus on Ailsa Craig, south-west Scotland., M. Nogales, B. Zonfrillo and P. Monaghan, SEABIRD 17: 56-63
♦ 3Food of Northwest Atlantic Fishes and Two Common Species of Squid, Ray E. Bowman, Charles E. Stillwell, William L. Michaels, and Marvin D. Grosslein, NOAA Technical Memorandum NMFS-NE-155 (2000)
♦ 4Feeding Spectrum and Trophic Relationships of Short-finned Squid (Illex illecebrosus) in the Northwest Atlantic, Yu. M. Froerman, NAFO Sci. Coun. Studies, 7: 67-75 (1984)