Dr. Nick Jeffery

Nick Jeffery

I am a visiting postdoctoral researcher at the Bedford Institute of Oceanography in Dartmouth, Nova Scotia, and I finished my PhD at the University of Guelph in 2015. I’m studying green crab and Atlantic salmon population genetics using microsatellites and SNPs obtained from RAD-sequencing. We’re using these genetic markers to study population expansion and fine-scale population structure in these species, contributing to a larger project studying a latitudinal divide in a number of Atlantic marine fishes and invertebrates.


Dr. Brendan Wringe

I am a postdoctoral researcher working at Memorial University and the Bedford Institute of Oceanography.  Escapes from aquaculture are nearly impossible to prevent, and given that the in the majority of cases the outcome of breeding interaction between wild and escapee fish is negative, an understandinIMG_5463g of the potential for such iteration is imperative.  As such, I am assessing the potential for interbreeding and subsequent genetic interaction between wild and escapee Atlantic salmon in Atlantic Canada using genome wide panels of single nucleotide polymorphisms. This work is directly contributing to several NSERC and DFO funded projects examining direct genetic interactions between wild and farmed Atlantic salmon in Atlantic Canada.

Check out Brendan’s GitHub page here.

Dr. Sarah Lehnert


I am a visiting postdoctoral fellow at the Bedford Institute of Oceanography in Dartmouth, Nova Scotia. I am interested in evolutionary processes that act to maintain genetic variation in natural populations. As part of my postdoctoral research, I am investigating the introgression of European Atlantic salmon in North American populations. Atlantic salmon from these two continents diverged over 600,000 years ago, and today these subspecies are characterized by different numbers of chromosomes. Through the use of high-density genetic markers, we can characterize this introgression across North American populations and identify genomic regions of introgression as well as regions that act as barriers to gene flow. My research will provide insight into the evolution of this economically important species.