1. Alm, G., 1959. Connection between maturity, size, and age in fishes. Report of the Institute of Freshwater Research, Drottningholm 40: 5–145.
2. Anon., 1994. Run Timing of Salmon. MAFF Publications, London.
3. Anon., 2006. Annual Assessment of Salmon Stocks and Fisheries in England and Wales 2005. Environment Agency, Bristol; Centre for Environment, Fisheries and Aquaculture Science, Lowestoft.
4. APEM, 1998. An Investigation into the Impact of Flow Regulation on Fisheries in the River Dee. Environment Agency, Bristol.
5. Baglinière, J. L., L. Denais, E. Rivot, J. P. Porcher, E. Prévost, F. Marchand & V. Vauclin, 2004. Length and age structure modifications of the Atlantic salmon (Salmo salar) populations of Brittany and Lower Normandy from 1972 to 2002. Technical report, Institut National de la Recherche Agronomique and Conseil Supérieur de la Pêche, Rennes.