Sammanfattning

In this study, the genetic population structure of the eelpout Zoarces viviparus was investigated by using microsatellites. Samples were collected at 10 sites in the Baltic Sea, covering a distance of c. 90 km. Ten newly developed microsatellite loci were used to infer the population structure. No global spatial genetic differentiation was found (global F-ST = 0.0001; D-est = -0.0003), indicating strong gene flow at this scale, nor any clear pattern of isolation by distance. The results suggest that gene flow among the studied populations of Z. viviparus is stronger than usually thought, which might be caused by environmental homogeneity. This is important for planning and evaluating monitoring activities in this species and for the interpretation of ecotoxicological studies. Strong migration might lead to wrong conclusions concerning the pollution in a given area. Therefore, reference stations should be placed at a larger distance than presently practiced.

Nyckelord

Baltic Sea; bioindicator; eelpout; gene flow; microsatellites; population genetics

Publicerad i

Journal of Fish Biology
2012, Volym: 80, nummer: 6, sidor: 2302-2316
Utgivare: WILEY-BLACKWELL

SLU författare

• Bergek, Sara

  • Institutionen för akvatiska resurser (SLU Aqua), Sveriges lantbruksuniversitet
    

• Franzén, Fredrik

  • Institutionen för akvatiska resurser (SLU Aqua), Sveriges lantbruksuniversitet
    

• Prestegaard, Tore

  • Institutionen för akvatiska resurser (SLU Aqua), Sveriges lantbruksuniversitet
    

• Appelberg, Magnus

  • Institutionen för akvatiska resurser (SLU Aqua), Sveriges lantbruksuniversitet
    

UKÄ forskningsämne

Genetik
Ekologi


Publikationens identifierare

DOI: https://doi.org/10.1111/j.1095-8649.2012.03286.x

Permanent länk till denna sida (URI)

https://res.slu.se/id/publ/41030