• norsk
    • English
  • English 
    • norsk
    • English
  • Login
View Item 
  •   Home
  • Havforskningsinstituttet
  • Publikasjoner fra CRIStin
  • View Item
  •   Home
  • Havforskningsinstituttet
  • Publikasjoner fra CRIStin
  • View Item
JavaScript is disabled for your browser. Some features of this site may not work without it.

Interbreeding between local and translocated populations of a cleaner fish in an experimental mesocosm predicts risk of disrupted local adaptation

Blanco Gonzalez, Enrique; Espeland, Sigurd Heiberg; Jentoft, Sissel; Hansen, Michael Møller; Robalo, Joana I.; Stenseth, Nils Christian; Jorde, Per Erik
Journal article, Peer reviewed
Published version
Thumbnail
View/Open
Gonzalez_et_al-2019-Ecology_and_Evolution.pdf (589.1Kb)
URI
http://hdl.handle.net/11250/2600459
Date
2019
Metadata
Show full item record
Collections
  • Articles [3339]
  • Publikasjoner fra CRIStin [3515]
Original version
Ecology and Evolution. 2019, 1-13.   10.1002/ece3.5246
Abstract
Translocation of organisms within or outside its native range carries the risk of modifying the community of the recipient ecosystems and induces gene flow between locally adapted populations or closely related species. In this study, we evaluated the genetic consequences of large‐scale translocation of cleaner wrasses that has become a common practice within the salmon aquaculture industry in northern Europe to combat sea lice infestation. A major concern with this practice is the potential for hybridization of escaped organisms with the local, recipient wrasse population, and thus potentially introduce exogenous alleles and breaking down coadapted gene complexes in local populations. We investigated the potential threat for such genetic introgressions in a large seminatural mesocosm basin. The experimental setting represented a simulated translocation of corkwing wrasse (Symphodus melops) that occurs on a large scale in the Norwegian salmon industry. Parentage assignment analysis of mesocosm's offspring revealed 30% (195 out of 651 offspring) interbreeding between the two populations, despite their being genetically (FST = 0.094, p < 0.05) and phenotypically differentiated. Moreover, our results suggest that reproductive fitness of the translocated western population doubled that of the local southern population. Our results confirm that human translocations may overcome the impediments imposed by natural habitat discontinuities and urge for immediate action to manage the genetic resources of these small benthic wrasses.
Journal
Ecology and Evolution

Contact Us | Send Feedback

Privacy policy
DSpace software copyright © 2002-2019  DuraSpace

Service from  Unit
 

 

Browse

ArchiveCommunities & CollectionsBy Issue DateAuthorsTitlesSubjectsDocument TypesJournalsThis CollectionBy Issue DateAuthorsTitlesSubjectsDocument TypesJournals

My Account

Login

Statistics

View Usage Statistics

Contact Us | Send Feedback

Privacy policy
DSpace software copyright © 2002-2019  DuraSpace

Service from  Unit