The preference for coastal habitats makes the harbour porpoise, Phocoena phocoena, vulnerable to fisheries conflicts and hence prone to die due to entangling in fishing nets. An opportunistic sampling of such casualties (134 individuals) in Norwegian waters was used to assess the genetic population structure of the species by SNP-genotyping at 78 loci. The results of genetic clustering obtained for these individuals failed to identify more than one genetic group. Likewise, the individually-based F did not meet an Isolation-by-Distance pattern, thus supporting the conclusion that harbour porpoise in Norway probably belongs to a single genetic group or population.

对沿海生境的偏爱使海豚海豚（Phocoena phocoena）易受渔业冲突的影响，因此由于缠入渔网而容易死亡。在挪威水域对此类伤亡者（134个人）进行了机会抽样，通过78个位点的SNP基因分型来评估该物种的遗传种群结构。为这些个体获得的遗传聚类结果未能鉴定出多个遗传群体。同样，基于个体的F也不符合“按距离隔离”的模式，因此支持了以下结论：挪威的海豚可能属于单个遗传群体或种群。