1. Allen KR (1935) The food and migration of the perch (Perca fluviatilis) in Windermere. J Anim Ecol 4:264–273
2. Ankar S, Elmgren R (1976) The benthic macro- and meiofauna of the Askö-Landsort area, northern Baltic proper—a stratified random sampling survey. Askö laboratory, (11)
3. Appelberg, M, Holmqvist M, Forsgren G (2003) An alternative strategy for coastal fish monitoring in the Baltic Sea, pp. 13. Copenhagen: ICES Annual Science Conference CM, 2003/R:03
4. Bagge O, Thurow F, Steffensen E, Bay J (1994) The Baltic cod. Dana. Charlottenlund 10:1–28
5. Balshine S, Verma A, Chant V, Theysmeyer T (2005) Competitive interactions between round gobies and logperch. J Great Lakes Res 31(1):68–77