Changes in salmon smolt ages in the Welsh River Dee over a 66 year period

• Published in: Journal of Fish Biology
• Main Authors: Cragg‐Hine, D., Bradley, D. C., Hendry, K.
• Format: Article in Journal/Newspaper
• Language: English
• Published: Wiley 2006
• Subjects: Dee; Atlantic salmon; Salmo salar
• Online Access: http://dx.doi.org/10.1111/j.0022-1112.2006.01062.x; https://api.wiley.com/onlinelibrary/tdm/v1/articles/10.1111%2Fj.0022-1112.2006.01062.x; https://onlinelibrary.wiley.com/doi/pdf/10.1111/j.0022-1112.2006.01062.x

Analysis of Atlantic salmon Salmo salar scales from the River Dee in Wales between 1937 and 2002 revealed a marked increase in the proportion of 1 + year smolts from c . 5% in the period to 1949, to almost 40% in the decade to 2002. Due to regulation flows post‐1964 over the period of change the Dee...