Over‐summering behaviour of Atlantic salmon Salmo salar returning to rivers in the Cromarty Firth, north–east Scotland

In 2005, a high percentage (50%) of Atlantic salmon Salmo salar fitted with acoustic transmitters, which entered rivers in the Cromarty Firth area of north–east Scotland dropped back to the estuary and ascended adjacent rivers after 33–80 days of freshwater residence. Fish residing in non‐natal rive...

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Bibliographic Details
Published in:Journal of Fish Biology
Main Authors: Stewart, D. C., Middlemas, S. J., Mackay, S., Armstrong, J. D.
Format: Article in Journal/Newspaper
Language:English
Published: Wiley 2009
Subjects:
Cromarty
Atlantic salmon
Salmo salar
Online Access:http://dx.doi.org/10.1111/j.1095-8649.2009.02201.x
https://api.wiley.com/onlinelibrary/tdm/v1/articles/10.1111%2Fj.1095-8649.2009.02201.x
https://onlinelibrary.wiley.com/doi/pdf/10.1111/j.1095-8649.2009.02201.x
Description
Summary:In 2005, a high percentage (50%) of Atlantic salmon Salmo salar fitted with acoustic transmitters, which entered rivers in the Cromarty Firth area of north–east Scotland dropped back to the estuary and ascended adjacent rivers after 33–80 days of freshwater residence. Fish residing in non‐natal rivers generate mixed stock fisheries, and movements of fish between rivers could increase the risk of disease transmission between catchments.

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