Links between patterns of marine growth and survival of Atlantic salmon Salmo salar, L.
Article first published online: 21 AUG 2007
2007 The Fisheries Society of the British Isles
Journal of Fish Biology
Volume 71, Issue 3, pages 684–700, September 2007
How to Cite
Peyronnet, A., Friedland, K. D., Maoileidigh, N. Ó., Manning, M. and Poole, W. R. (2007), Links between patterns of marine growth and survival of Atlantic salmon Salmo salar, L. Journal of Fish Biology, 71: 684–700. doi: 10.1111/j.1095-8649.2007.01538.x
- Issue published online: 21 AUG 2007
- Article first published online: 21 AUG 2007
- (Received 1 June 2006, Accepted 23 March 2007)
- Atlantic salmon;
The hypothesis that marine survival of Atlantic salmon Salmo Salar is linked to marine growth was explored by using inter-circuli distances and total numbers of circuli existing on scales from a population monitored over nearly four decades. The results suggest that marine growth controls survival, particularly during the late summer and early winter of the first year at sea. Recruitment is strongly linked to growth, described as the total number of circuli, but not to inter-circuli distances. This highlights the potential of patterns of circuli number to be considered as proxies for growth. Indications that hatchery populations might be subject to other mortality events, in addition to those experienced by wild populations, are also presented.