Reference citation: Arnett, R.T.P. and J. Whelan. 2001. Comparing the diet of cod (Gadus morhua) and grey seals (Halichoerus grypus): an investigation of secondary ingestion. J. Mar. Biol. Ass. U.K. 81(2):365-366.
Source citation: Palomares, M.L.D. and D. Pauly. Editors. 2018. SeaLifeBase. World Wide Web electronic publication. www.sealifebase.org, version (10/2018).