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The emergence period of sea trout fry in a Lake District stream correlates with the North Atlantic Oscillation
Author(s) -
Elliott J.M.,
Hurley M. A.,
Maberly S. C.
Publication year - 2000
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.1095-8649.2000.tb02096.x
Subject(s) - north atlantic oscillation , trout , streams , biology , period (music) , fishery , salmonidae , oceanography , ecology , salmo , fish <actinopterygii> , geology , computer network , physics , computer science , acoustics
The date of fry emergence over 30 years in a sea trout nursery stream, predicted by an individual‐based model, correlated significantly ( r =0·660, P <0·001) with an index of the North Atlantic Oscillation. Water temperature is the main driving variable in the model and stream temperature also correlated significantly ( r =0·662, P <0·001) with the index, providing a probable causal link. Therefore, the inter‐annual variations in emergence may not be unique to this one stream, but may be typical of other trout streams with similar climatic conditions.