Links between patterns of marine growth and survival of Atlantic salmon Salmo salar, L.

Type Article
Date 2007-09
Language English
Author(s) Peyronnet Arnaud1, 4, Friedland K2, Maoileidigh N. Ó3, Manning M1, Poole Marine Institute3
Affiliation(s) 1 : Univ Massachusetts, Dept Nat Resources Conservat, Amherst, MA 01003 USA.
2 : NOAA, Natl Marine Fisheries Serv, Narragansett, RI 02882 USA.
3 : Marine Inst, Catchment Management Serv, Newport, Co Mayo, Ireland.
Source Journal of Fish Biology (0022-1112) (Blackwell science), 2007-09 , Vol. 71 , N. 3 , P. 684-700
DOI 10.1111/j.1095-8649.2007.01538.x
WOS© Times Cited 57
Keyword(s) Survival, Post smolt, Growth, Circuli, Atlantic salmon
Abstract 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. (C) 2007 The Authors Journal compilation (C) 2007 The Fisheries Society of the British Isles.
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