Beyond hybridization: the genetic impacts of nonreproductive ecological interactions of salmon aquaculture on wild populations
| Autor: | Ian Bradbury, Eric Verspoor, Thomas F. Cross, Anti Vasemägi, Sarah J. Lehnert, Ian A. Fleming, Phil McGinnity, M. F. Solberg, Mark W. Coulson, I Burgetz, John Gilbey, Tony Kess |
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| Rok vydání: | 2020 |
| Předmět: |
0106 biological sciences
media_common.quotation_subject Population SH1-691 Management Monitoring Policy and Law Aquatic Science 010603 evolutionary biology 01 natural sciences Competition (biology) Predation 03 medical and health sciences Aquaculture Aquaculture. Fisheries. Angling Allele Salmo education Domestication QH540-549.5 030304 developmental biology Water Science and Technology media_common Ecological stability 0303 health sciences education.field_of_study Ecology biology business.industry biology.organism_classification business |
| Zdroj: | Aquaculture Environment Interactions Aquaculture Environment Interactions, Vol 12, Pp 429-445 (2020) |
| ISSN: | 1869-7534 1869-215X |
| Popis: | Cultured Atlantic salmon Salmo salar are of international socioeconomic value, and the process of domestication has resulted in significant behavioural, morphological, and allelic differences from wild populations. Substantial evidence indicates that direct genetic interactions or interbreeding between wild and escaped farmed Atlantic salmon occurs, genetically altering wild salmon and reducing population viability. However, genetic interactions may also occur through ecological mechanisms (e.g. disease, parasites, predation, competition), both in conjunction with and in the absence of interbreeding. Here we examine existing evidence for ecological and non-reproductive genetic interactions between domestic Atlantic salmon and wild populations and the potential use of genetic and genomic tools to resolve these impacts. Our review identified examples of genetic changes resulting from ecological processes, predominately through pathogen or parasite transmission. In addition, many examples were identified where aquaculture activities have either altered the selective landscape experienced by wild populations or resulted in reductions in population abundance, both of which are consistent with the widespread occurrence of indirect genetic changes. We further identify opportunities for genetic or genomic methods to quantify these impacts, though careful experimental design and pre-impact comparisons are often needed to accurately attribute genetic change to aquaculture activities. Our review indicates that ecological and non-reproductive genetic interactions are important, and further study is urgently needed to support an integrated understanding of aquaculture-ecosystem interactions, their implications for ecosystem stability, and the development of potential mitigation and management strategies. |
| Databáze: | OpenAIRE |
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