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♦ ¹Diet of the southern opah Lampris immaculatus on the Patagonian Shelf; the significance of the squid Moroteuthis ingens and anthropogenic plastic, George D. Jackson, Nicole G. Buxton, Magnus J. A. George, Mar Ecol Prog Ser 206: 261–271, 2000
♦ ²Geographical variation in the diet of the Antarctic fur seal Arctocephalus gazella, R. Casaux, A. Baroni, F. Arrighetti, A. Ramón, A. Carlini, Polar Biol (2003) 26: 753–758