Attributes / relations provided by
♦ ¹Food web topology and parasites in the pelagic zone of a subarctic lake, Per-Arne Amundsen, Kevin D. Lafferty, Rune Knudsen, Raul Primicerio, Anders Klemetsen and Armand M. Kuris, Journal of Animal Ecology 2009, 78, 563–572
♦ ²Seasonal 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.
♦ ³Feeding ecology of Coregonus albula and Osmerus eperlanus in the limnetic waters of Lake Mälaren, Sweden, Thomas G. Northcote and Johan Hammar, BOREAL ENVIRONMENT RESEARCH 11: 229–246 (2006)