Over-summering behaviour of Atlantic salmon Salmo salar returning to rivers in the Cromarty Firth, north-east Scotland
Authors: Stewart; Middlemas; Mackay; Armstrong
Source: Journal of Fish Biology, Volume 74, Number 6, April 2009 , pp. 1347-1352(6)
Abstract: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.
Document Type: Research article
Publication date: 2009-04-01