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Changes in salmon smolt ages in the Welsh River Dee over a 66 year period
Author(s) -
CraggHine D.,
Bradley D. C.,
Hendry K.
Publication year - 2006
Publication title -
journal of fish biology
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.672
H-Index - 115
eISSN - 1095-8649
pISSN - 0022-1112
DOI - 10.1111/j.0022-1112.2006.01062.x
Subject(s) - salmo , period (music) , biology , fishery , climate change , welsh , salmonidae , fish <actinopterygii> , ecology , geography , archaeology , physics , acoustics
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 became colder during the period April to October, indicating that factors other than climate change are likely to be involved.