References
- Alm, G. 1952. Year class fluctuations and the span of life of perch. Rep. Inst. Freshw. Res. Drottning. 33 (1951): 17–38.
- Le Cren, E. D. 1947. The determination of the age and growth of the perch (Perca fluviatilis) from the opercular bone. J. Anim. Ecol. 16: 188–204.
- Smyly, W. J. P. 1952. Observations on the food of the fry of perch (Perca fluviatilis Linn.) In Windermere. Proc. Zool. Soc. Lond. 122: 407–416.
- Worthington, E. B. 1950. An experiment with populations of fish in Windermere, 1939–48. Proc. zool. Soc. Lond. 120: 113–149.