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dc.contributor.authorFaust, Ellika
dc.contributor.authorJansson, Eeva
dc.contributor.authorAndré, Carl
dc.contributor.authorHalvorsen, Kim Aleksander Tallaksen
dc.contributor.authorDahle, Geir
dc.contributor.authorKnutsen, Halvor
dc.contributor.authorSanchez, Maria Quintela
dc.contributor.authorGlover, Kevin Alan
dc.date.accessioned2021-08-18T13:01:32Z
dc.date.available2021-08-18T13:01:32Z
dc.date.created2021-07-16T17:59:55Z
dc.date.issued2021
dc.identifier.citationEvolutionary Applications. 2021, 14 (6), 1-16.en_US
dc.identifier.issn1752-4571
dc.identifier.urihttps://hdl.handle.net/11250/2770129
dc.description.abstractTranslocation and introduction of non-native organisms can have major impacts on local populations and ecosystems. Nevertheless, translocations are common practices in agri- and aquaculture. Each year, millions of wild-caught wrasses are transported large distances to be used as cleaner fish for parasite control in marine salmon farms. Recently, it was documented that translocated cleaner fish are able to escape and reproduce with local wild populations. This is especially a challenge in Norway, which is the world's largest salmon producer. Here, a panel of 84 informative SNPs was developed to identify the presence of nonlocal corkwing wrasse (Symphodus melops) escapees and admixed individuals in wild populations in western Norway. Applying this panel to ~2000 individuals, escapees and hybrids were found to constitute up to 20% of the local population at the northern edge of the species’ distribution. The introduction of southern genetic material at the northern edge of the species distribution range has altered the local genetic composition and could obstruct local adaptation and further range expansion. Surprisingly, in other parts of the species distribution where salmon farming is also common, few escapees and hybrids were found. Why hybridization seems to be common only in the far north is discussed in the context of demographic and transport history. However, the current lack of reporting of escapes makes it difficult to evaluate possible causes for why some aquaculture-dense areas have more escapees and hybrids than others. The results obtained in this study, and the observed high genomic divergence between the main export and import regions, puts the sustainability of mass translocation of nonlocal wild wrasse into question and suggests that the current management regime needs re-evaluation.en_US
dc.language.isoengen_US
dc.titleNot that clean: Aquaculture-mediated translocation of cleaner fish has led to hybridization on the northern edge of the species' rangeen_US
dc.typePeer revieweden_US
dc.typeJournal articleen_US
dc.description.versionpublishedVersionen_US
dc.source.pagenumber1-16en_US
dc.source.volume14en_US
dc.source.journalEvolutionary Applicationsen_US
dc.source.issue6en_US
dc.identifier.doi10.1111/eva.13220
dc.identifier.cristin1921972
cristin.ispublishedtrue
cristin.fulltextoriginal
cristin.qualitycode2


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