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dc.contributor.authorChittenden, Cedar
dc.contributor.authorRikardsen, Audun H.
dc.contributor.authorSkilbrei, Ove Tommy
dc.contributor.authorDavidsen, Jan Grimsrud
dc.contributor.authorHalttunen, Elina
dc.contributor.authorSkardhamar, Jofrid
dc.contributor.authorMcKinley, R. Scott
dc.date.accessioned2019-10-31T10:02:28Z
dc.date.available2019-10-31T10:02:28Z
dc.date.issued2011-04-04
dc.description.abstractThe search for effective strategies to prevent and mitigate accidental releases of aquaculture fishes is on-going. To test a new recapture strategy and evaluate the individual dispersal behaviour of escaped farmed Atlantic salmon <i>Salmo salar</i> L. at the northern limit of its range, 39 adult salmon (mean ± SD fork length and weight: 85.5 ± 5.0 cm and 7.4 ± 1.4 kg, respectively) were implanted with depth-sensing acoustic tags and released in a north Norwegian fjord during the spring of 2007. The fish were released from 2 aquaculture sites in the Altafjord system and tracked using both mobile and fixed receivers. The coastal marine bag-net fishery, in combination with in-river angling, was tested as a potential recapture strategy. Immediately following the simulated escape event, the fish dove to near-bottom depths, subsequently returning to surface levels within the following days. The fish dispersed rapidly (9.5 ± 19.2 km d<sup>–1</sup>), traveling outward to coastal waters along the edges of the fjord. The bag-net fishers and anglers recaptured 79% of the escaped fish within 1 mo post-release, 90% of which were from bag nets. While most of the fish left the fjord, 7 tagged fish (18%) entered the Alta River estuary (3 of which later migrated up the Alta River), and 1 returned to the Altafjord the following year, presumably to spawn. The results showed that recapture efforts need to be immediate and widespread to mitigate farm-escape events. Coastal bag nets were effective at recapturing escaped farmed salmon, compared to previously tested methods, and would be especially useful in areas where gill-netting is not permitted.en_US
dc.descriptionSource at <a href=https://doi.org/10.3354/aei00021>https://doi.org/10.3354/aei00021</a>.en_US
dc.identifier.citationChittenden, C.M., Rikardsen, A.H., Skilbrei, O.T., Davidsen, J.G., Halttunen, E., Skardhamar, J. & McKinley, R.S. (2011). An effective method for the recapture of escaped farmed salmon. <i>Aquaculture Environment Interactions, 1</i>(3), 215-224. https://doi.org/10.3354/aei00021en_US
dc.identifier.cristinIDFRIDAID 835691
dc.identifier.doi10.3354/aei00021
dc.identifier.issn1869-215X
dc.identifier.issn1869-7534
dc.identifier.urihttps://hdl.handle.net/10037/16551
dc.language.isoengen_US
dc.publisherInter-Researchen_US
dc.relation.journalAquaculture Environment Interactions
dc.rights.accessRightsopenAccessen_US
dc.subjectVDP::Agriculture and fishery disciplines: 900::Fisheries science: 920::Aquaculture: 922en_US
dc.subjectVDP::Landbruks- og Fiskerifag: 900::Fiskerifag: 920::Akvakultur: 922en_US
dc.subjectAcoustic telemetryen_US
dc.subjectAquacultureen_US
dc.subjectDispersal behaviouren_US
dc.subjectMigrationen_US
dc.subjectMitigationen_US
dc.subjectNet fisheryen_US
dc.subjectSalmo salaren_US
dc.titleAn effective method for the recapture of escaped farmed salmonen_US
dc.typeJournal articleen_US
dc.typeTidsskriftartikkelen_US
dc.typePeer revieweden_US


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