Salmon are recolonising newly reconnected zones in the rivers of the Adour basin
Wednesday, August 27, 2014 - 07:30
in Earth & Climate
Researchers from INRA, Laval University in Quebec, CIRAD and the Université de Pau et des Pays de l'Adour have studied the impact of constructing passes that allow salmon to cross hydroelectric dams and recolonise newly reconnected zones in the Adour basin. Using population genetics tools, they have shown that the sources of this recolonisation are very probably the sectors downstream of these passes and that little genetic diversity is lost during recolonisation of the newly available zones. These results suggest a strong potential for the evolution of these newly formed populations.