Acronym Villaks
Category
Aquaculture
Title Villaks: Oppfølging av tiltak ved smoltutvandring fra Vosso - Wild salmon: Follow-up of measures for smolt emigration from Vosso Programme National Programme
Instrument (FP6)
Contact Type (FP7)
Strand (Interreg)
NA
Theme (FP7)
Activity Area (FP6)
Regional Area (Interreg)
Action (COST)
NA
Specific Programme (FP7)
NA
Funding source National Coordinator Tor Solberg Coordinator email tor.solberg@protevs.no
Coordinator institution
NA
Institutions involved
Biomega - Biomega Group AS (Norway) ,
Start year 2011 End year 2016 Funding (€) € 405,188 Website https://www.fhf.no/prosjekter/prosjektbasen/900608/ Summary "The special stock of Atlantic salmon in Vosso watercourse was strongly reduced in the end of 1980s. Investigations undertaken in 1990s and until today have shown, that the stock has not recovered, and that Atlantic salmon in Vosso should therefore be considered as threatened by extinction. In the period 2000-2008, a major research endeavour focused on mapping the status of salmon stock in Vosso watercourse, identifying threats and possible measures to save Vosso salmon. This work was in the fall of 2008 summarized in a report issued by Directorate for Nature Management. Based on this report, Directorate of Nature Management initiated a 10 years' programme to save the stock of wild Atlantic salmon in Vosso. The research activities in this programme are coordinated by Dr. Bjørn T. Barlaup, Head of Research at Uni Research AS, LFI. One of the measures undertaken to save the Vosso salmon was large-scale stocking of smolts in the period 2009-2013. Present project ""Villaks: Oppfølging av tiltak ved smoltutvandring Vosso"" is focusing on recapture of salmon in the period 2011-2015 by using several wedge and seine nets to evaluate effects of this large-scale stocking of smolts during 2009-2013.
The large-scale smolt releases carried out in the 2009-2013 period have so far produced high numbers of returning spawners in 2011 and 2012 and accordingly, and high annual numbers of spawners are expected in the 2011-2016 period. The main project objective is to evaluate the effects of the releases.
Aim of the project is to document and evaluate the use of cage-produced smolt as a means of re-establishing a population of wild salmon.
Sub-objectives:
• To assess the measure's suitability for saving endangered strains of wild salmon.
• To document survival measured as recapture percentage for groups of smolt set on different parts of the migration route.
• To document where in the smolt's natural migration route the greatest mortality occurs.
• To evaluate the threat factors in the emigration route.
• To compare hatchery and cage-based smolt with regard to survival potential and return migration.
• To register and fish out escaped farmed salmon as by-catch."
Keywords
Fish;
Purse seine;
Salmon;
Open sea aquaculture;
Restocking;
Cage aquaculture;
Marine Region
13
Northern North Sea (27.IVa)
42
Barents Sea (27.I)
14
Skagerrak, Kattegat (27.IIIa)
41
Norwegian Sea (27.IIa)
4
Marine Region Map
