A1 Refereed original research article in a scientific journal
Genetic mixed-stock analysis of lake-run brown trout Salmo trutta fishery catches in the Inari Basin, northern Finland: implications for conservation and management
Authors: Swatdipong A, Vasemagi A, Niva T, Koljonen ML, Primmer CR
Publisher: WILEY-BLACKWELL
Publication year: 2013
Journal: Journal of Fish Biology
Journal name in source: JOURNAL OF FISH BIOLOGY
Journal acronym: J FISH BIOL
Number in series: 3
Volume: 83
Issue: 3
First page : 598
Last page: 617
Number of pages: 20
ISSN: 0022-1112
DOI: https://doi.org/10.1111/jfb.12199
Abstract
Genetic mixed-stock analysis (MSA) of wild lake-run brown trout Salmo trutta fishery catches (n = 665) from the Inari Basin (northern Finland) between 2006 and 2008 was carried out using a previously characterized baseline with 30 populations (n = 813) and 13 microsatellite loci. Altogether, 12 populations contributed significantly to mixed-stock fisheries, with the Ivalojoki system being the major contributor (70%) to the total catch. When catches were analysed regionally, geographically nearby populations were the main contributors to the local catches, indicating that a large proportion of S. trutta occupy lacustrine areas near the natal river mouth rather than dispersing throughout the lake. Similarly, far upstream populations contributed insignificantly to catches. These findings have important implications for the conservation and sustainable fishery management of the Inari system. (C) 2013 The Fisheries Society of the British Isles
Genetic mixed-stock analysis (MSA) of wild lake-run brown trout Salmo trutta fishery catches (n = 665) from the Inari Basin (northern Finland) between 2006 and 2008 was carried out using a previously characterized baseline with 30 populations (n = 813) and 13 microsatellite loci. Altogether, 12 populations contributed significantly to mixed-stock fisheries, with the Ivalojoki system being the major contributor (70%) to the total catch. When catches were analysed regionally, geographically nearby populations were the main contributors to the local catches, indicating that a large proportion of S. trutta occupy lacustrine areas near the natal river mouth rather than dispersing throughout the lake. Similarly, far upstream populations contributed insignificantly to catches. These findings have important implications for the conservation and sustainable fishery management of the Inari system. (C) 2013 The Fisheries Society of the British Isles
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