Conservation Biol. Prof @Concordia. Fascinated by ecol, evol and genetics in small populations and fish, and how humans change them. Proud dad. Built to portage
Montréal, Québec
Joined September 2015
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Our lab has PhD + MSc positions available in 2025 on the molecular or evolutionary ecology of fishes. Projects are part of long-term research programs and can combine molecular, field and/or common garden experiments. Come join a great team!
#brooktrout #walleye #laketrout
Our lab's latest genomic work on adaptive divergence and persistence of long-isolated #brooktrout populations with small effective popn sizes reveals hidden resilience in the evolutionary history of some species.
cdnsciencepub.com/doi/abs/10…
#populationgenomics #wildlifeconservation
This work was led by @Hyungbae_Jeon with collab from @AllomeDNA + @bk_gallagher and is part of a special issue tribute for the late Jeff Hutchings (cdnsciencepub.com/topic/jeff…). Jeff loved small popn biology and initiated research on this study system (#CapeRace) ~40 years ago.
Our lab has a #molecular lab assistant position available for the next several months that we are looking to fill asap. Flexible hours, part- or full-time. Come join a great team and work on some super cool #fish #genomics projects! @IKGenFisheries @Concordia
Dylan Fraser retweeted
Great lab meeting today discussing journal article on effective size. Message. Many populations are too small to maintain genetic diversity so management action is needed. Especially plants and amphibians onlinelibrary.wiley.com/doi/… @thefraserlab great work!!
Dylan Fraser retweeted
Curious to know what effective population sizes looks like across the globe? Look no further! Out now in Molecular Ecology, our team assessed effective size of wild populations, comparing between taxonomic groups and in relation to the 50/500 rule.
bit.ly/3TYrhEa
Dylan Fraser retweeted
New paper (w/ Open Access): fine-scale demographic variation among brook trout populations in Cape Race NL generates a portfolio effect that stabilizes species abundance and reduces vulnerability to climate change
doi.org/10.1002/eap.2936
Dylan Fraser retweeted
For the love of fish, nature and people: A tribute to Professor Louis Bernatchez (1960–2023)
doi.org/10.1111/eva.13609
Obituary to our former editor-in-chief, colleague, and friend.
Species responses to #climatechange in #freshwater envts can be consistent in direction but vary substantially in magnitude even at #microgeographic scales due to the influence of #groundwater
Congrats to @bk_gallagher for finishing this important + supercool study! #brooktrout
New paper (w/ Open Access): Groundwater creates vastly different thermal regimes across neighboring streams in Cape Race NL (most <3km apart), impacting phenology, growth, and exposure to warming in brook trout populations
doi.org/10.1111/fwb.14198
Salmon, trout + char aficionados!
At 1/100th the size of a typical #anadromous salmon, here are perhaps the world's smallest mature female #Atlanticsalmon (9-11cm, 10-20g, 15-30 eggs). They eke out a living in low order streams of #CapeRace, #Newfoundland (no access to sea)
Dylan Fraser retweeted
In close collaboration with members of the Cree Nation of Mistissini, our team (@Hyungbae_Jeon, @thefraserlab) has done tons of work about Lake Trout genomics in Mistassini Lake over the years. @BernosThais summarized it in a comic...
Are u at #adaptfutures2023? Co-developing knowledge with #Indigenous communities for #fisheries #resilience: we are honoured to be sharing some of the @IKGenFisheries team's interdisciplinary insights today (session in room 518A, 14h00-15h30).
The field of molecular ecology + Canadian science have lost a giant today. Louis Bernatchez inspired many and was a tireless supporter of 100s of young researchers over 4 decades of his highly distinguished career. Thanks for being such a great academic dad to many of us Louis
New preprint: A global assessment of effective population sizes highlights consistent taxonomic differences in meeting the 50/500 rule, and reduced Ne in many areas with greater human footprint
biorxiv.org/content/10.1101/…
Led by @_shannon_clarke + super team @Concordia @DalhousieU
Dylan Fraser retweeted
We had an amazing week talking with Elders and community members of the Cree Nation of Mistissini. Thankful for the knowledge that was shared, the stories, the laughters, and the delicious food. @thefraserlab @SNMichaelides @badrouyk @BernosThais, Nicole Yu, Julie Gibelli
Our #macrogenetic assessment of pop genetic diversity across🌎is out!
-Spatial hot + coldspots largely unrelated to latitude
-Discordance btw gen diversity + species richness
-Only some links with envtal factors; taxonomic diffs
-Nature is complicated!
onlinelibrary.wiley.com/doi/…
This work was led by @AnglerEli as part of her PhD @Concordia, in collab. with @ericJpedersen. It expands on a large, open access database of pop gen diversity from published studies and literature synthesis in the following papers: nature.com/articles/s41597-0…
onlinelibrary.wiley.com/doi/…
Experimental size-selective harvesting on wild #brooktrout reveals #population variation in responses to harvest. More risk + uncertainty when harvesting pops with larger + more varied body sizes than smaller-bodied pops with less range in body size besjournals.onlinelibrary.wi…
Congrats to @Ichtyologie + D Glaser for leading this challenging field experiment. This research was part of an @NSERC_CRSNG Strategic Project in collaboration with @ParksCanada (#Banff, #Yoho, #Kootenay NPs), Alberta Environment Parks, @concordia, @UQAM and @UCalgary. 🐟🐟
Dylan Fraser retweeted
Can genomics help? YES. Even one genome from one individual per species provides prelim assessment of extinction risk. Important role for genomics in biodiversity conservation @sandiegozoo #Zoonomia @ArynWilder @bonesandbugs @frozenzoo science.org/doi/10.1126/scie…
