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

Autor: Nils Christian Stenseth, Enrique Blanco Gonzalez, Per Erik Jorde, Sigurd Heiberg Espeland, Joana Isabel Robalo, Sissel Jentoft, Michael Møller Hansen
Jazyk: angličtina
Rok vydání: 2019
Předmět:
0106 biological sciences
Mating behavior
Population
Reproductive fitness
Zoology
VDP::Landbruks- og Fiskerifag: 900::Fiskerifag: 920::Akvakultur: 922
Parentage assignment
Biology
Cleaner fish
010603 evolutionary biology
01 natural sciences
Gene flow
Mesocosm
03 medical and health sciences
lcsh:QH540-549.5
VDP::Agriculture and fishery disciplines: 900::Fisheries science: 920::Fish health: 923
VDP::Landbruks- og Fiskerifag: 900::Fiskerifag: 920::Fiskehelse: 923
Corkwing wrasse
education
Microsatellites
Ecology
Evolution
Behavior and Systematics
Original Research
030304 developmental biology
Nature and Landscape Conservation
Local adaptation
VDP::Agriculture and fishery disciplines: 900::Fisheries science: 920::Aquaculture: 922
0303 health sciences
education.field_of_study
Symphodus melops
Ecology
Reproductive success
biology.organism_classification
Wrasse
lcsh:Ecology
Zdroj: Ecology and Evolution
Repositório Científico de Acesso Aberto de Portugal
Repositório Científico de Acesso Aberto de Portugal (RCAAP)
instacron:RCAAP
Ecology and Evolution, Vol 9, Iss 11, Pp 6665-6677 (2019)
Gonzalez, E B, Espeland, S, Jentoft, S, Hansen, M M, Robalo, J, Stenseth, N C & Jorde, P E 2019, ' Interbreeding between local and translocated populations of a cleaner fish in an experimental mesocosm predicts risk of disrupted local adaptation ', Ecology and Evolution, vol. 9, no. 11, pp. 6665-6677 . https://doi.org/10.1002/ece3.5246
ISSN: 2045-7758
DOI: 10.1002/ece3.5246
Popis: Source at https://doi.org/10.1002/ece3.5246. 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.
Databáze: OpenAIRE
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