The emergence period of sea trout fry in a Lake District stream correlates with the North Atlantic Oscillation

• Published in: Journal of Fish Biology
• Main Authors: Elliott, J.M., Hurley, M. A., Maberly, S. C.
• Format: Article in Journal/Newspaper
• Language: English
• Published: Wiley 2000
• Subjects: North Atlantic; North Atlantic oscillation
• Online Access: http://dx.doi.org/10.1111/j.1095-8649.2000.tb02096.x; https://api.wiley.com/onlinelibrary/tdm/v1/articles/10.1111%2Fj.1095-8649.2000.tb02096.x; https://onlinelibrary.wiley.com/doi/pdf/10.1111/j.1095-8649.2000.tb02096.x

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.