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♦ ¹Seasonal feeding activity and ontogenetic dietary shifts in crucian carp, Carassius carassius, Olli-Pekka Penttinen & Ismo J. Holopainen, Environmental Biology of Fishes 33: 215-221, 1992.
♦ ²Life History and Status of Delta Smelt in the Sacramento-San Joaquin Estuary, California, PETER B. MOYLE, BRUCE HERBOLD, DONALD E. STEVENS AND LEE W. MILLER, Transactions of the American Fisheries Society 121:67-77, 1992