Dylan Fraser
@thefraserlab
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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
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
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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 (. Jeff loved small popn biology and initiated research on this study system (#CapeRace) ~40 years ago.
cdnsciencepub.com
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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. #populationgenomics #wildlifeconservation
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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
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RT @seanmhoban: Great lab meeting today discussing journal article on effective size. Message. Many populations are too small to maintain g….
onlinelibrary.wiley.com
Effective population size (Ne) is a particularly useful metric for conservation as it affects genetic drift, inbreeding and adaptive potential within populations. Current guidelines recommend a...
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RT @_shannon_clarke: Curious to know what effective population sizes looks like across the globe? Look no further! Out now in Molecular Eco….
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RT @bk_gallagher: New paper (w/ Open Access): fine-scale demographic variation among brook trout populations in Cape Race NL generates a po….
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RT @EvolAppJournal: For the love of fish, nature and people: A tribute to Professor Louis Bernatchez (1960–2023). O….
onlinelibrary.wiley.com
Click on the article title to read more.
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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.
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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)
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RT @IKGenFisheries: In close collaboration with members of the Cree Nation of Mistissini, our team (@Hyungbae_Jeon, @thefraserlab) has don….
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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).
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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
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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. Led by @_shannon_clarke + super team @Concordia @DalhousieU
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RT @IKGenFisheries: We had an amazing week talking with Elders and community members of the Cree Nation of Mistissini. Thankful for the kno….
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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:
onlinelibrary.wiley.com
Motivation Theory describing biodiversity gradients has focused on species richness with less conceptual synthesis outlining expectations for intraspecific diversity gradients, that is, broad-scale...
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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!.
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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. 🐟🐟.
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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
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RT @eenork: Can genomics help? YES. Even one genome from one individual per species provides prelim assessment of extinction risk. Importan….
science.org
Species persistence can be influenced by the amount, type, and distribution of diversity across the genome, suggesting a potential relationship between historical demography and resilience. In this...
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