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Invader at the edge - Genomic origins and physiological differences of round gobies across a steep urban salinity gradient
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- Green, Leon (författare)
- Gothenburg University,Göteborgs universitet,Institutionen för biologi och miljövetenskap,Linnécentrum för marin evolutionsbiologi (CEMEB),Department of Biological and Environmental Sciences,Linnaeus Centre for Marine Evolutionary Biology (CEMEB),Department of Biological and Environmental Sciences University of Gothenburg Gothenburg Sweden;Linnaeus Centre for Marine Evolutionary Biology University of Gothenburg Strömstad Sweden; Gothenburg Global Biodiversity Centre University of Gothenburg, Gothenburg Sweden
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- Faust, Ellika (författare)
- Gothenburg University,Göteborgs universitet,Institutionen för marina vetenskaper, Tjärnö marinlaboratoriet,Linnécentrum för marin evolutionsbiologi (CEMEB),Department of marine sciences, Tjärnö Marine Laboratory,Linnaeus Centre for Marine Evolutionary Biology (CEMEB),Linnaeus Centre for Marine Evolutionary Biology University of Gothenburg, Strömstad Sweden; Gothenburg Global Biodiversity Centre University of Gothenburg Gothenburg Sweden;Tjärnö Marine Laboratory, Department of Marine Sciences University of Gothenburg, Strömstad Sweden
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- Hinchcliffe, James, 1992 (författare)
- Gothenburg University,Göteborgs universitet,Institutionen för biologi och miljövetenskap,Department of Biological and Environmental Sciences,Department of Biological and Environmental Sciences University of Gothenburg, Gothenburg Sweden
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- (creator_code:org_t)
- 2022-07-16
- 2023
- Engelska.
- Ingår i: Evolutionary Applications. - : Wiley. - 1752-4571. ; 16:2, s. 321-37
- Tidskriftsartikel (refereegranskat)
Abstract
Ämnesord
Stäng
- Species invasions are a global problem of increasing concern, especially in highly connected aquatic environments. Despite this, salinity conditions can pose physiological barriers to their spread, and understanding them is important for management. In Scandinavia's largest cargo port, the invasive round goby (Neogobius melanostomus) is established across a steep salinity gradient. We used 12,937 SNPs to identify the genetic origin and diversity of three sites along the salinity gradient and round goby from western, central and northern Baltic Sea, as well as north European rivers. Fish from two sites from the extreme ends of the gradient were also acclimated to freshwater and seawater, and tested for respiratory and osmoregulatory physiology. Fish from the high-salinity environment in the outer port showed higher genetic diversity, and closer relatedness to the other regions, compared to fish from lower salinity upstream the river. Fish from the high-salinity site also had higher maximum metabolic rate, fewer blood cells and lower blood Ca2+. Despite these genotypic and phenotypic differences, salinity acclimation affected fish from both sites in the same way: seawater increased the blood osmolality and Na+ levels, and freshwater increased the levels of the stress hormone cortisol. Our results show genotypic and phenotypic differences over short spatial scales across this steep salinity gradient. These patterns of the physiologically robust round goby are likely driven by multiple introductions into the high-salinity site, and a process of sorting, likely based on behaviour or selection, along the gradient. This euryhaline fish risks spreading from this area, and seascape genomics and phenotypic characterization can inform management strategies even within an area as small as a coastal harbour inlet.
Ämnesord
- NATURVETENSKAP -- Biologi -- Evolutionsbiologi (hsv//swe)
- NATURAL SCIENCES -- Biological Sciences -- Evolutionary Biology (hsv//eng)
- LANTBRUKSVETENSKAPER -- Lantbruksvetenskap, skogsbruk och fiske -- Fisk- och akvakulturforskning (hsv//swe)
- AGRICULTURAL SCIENCES -- Agriculture, Forestry and Fisheries -- Fish and Aquacultural Science (hsv//eng)
- NATURVETENSKAP -- Biologi -- Ekologi (hsv//swe)
- NATURAL SCIENCES -- Biological Sciences -- Ecology (hsv//eng)
Nyckelord
- biological invasions
- euryhalinity
- exotic species
- osmoregulation
- phenotypic sorting
- seascape genomics
- goby neogobius-melanostomus
- fresh-water fishes
- phenotypic plasticity
- biological invasions
- r-package
- population-genetics
- adaptive
- evolution
- metabolic-rate
- climate-change
- na+/k+-atpase
- Evolutionary Biology
- biological invasions
- Lärarutbildning och pedagogisk yrkesverksamhet
Publikations- och innehållstyp
- ref (ämneskategori)
- art (ämneskategori)
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- Evolutionary Applications (Sök värdpublikationen i LIBRIS)
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