Guillaume Dauphin
@guillaumedauphin.bsky.social
Science Advisor - Climate Change Science
(Research Scientist👨🔬)
A. salmon population dynamics & cleaning up historical datasets 🐟 📈
R aficionado 🖥️
In professional limbo since Sept. 2023...
Cat parent 🐈🐈⬛
Occasional artist 🎨🖌️
342 ppm
All views are my own
(Research Scientist👨🔬)
A. salmon population dynamics & cleaning up historical datasets 🐟 📈
R aficionado 🖥️
In professional limbo since Sept. 2023...
Cat parent 🐈🐈⬛
Occasional artist 🎨🖌️
342 ppm
All views are my own
New report out 🌡️⚓🚢🪸🌊🐟!
Canada’s oceans and freshwater ecosystems are changing fast.
DFO Climate Change Science Community Needs Evaluation 2025 is a national review of priorities to strengthen our science, collaboration, and resilience in the face of climate change.
bit.ly/4o6zFyn
🧵👇
1/8
Canada’s oceans and freshwater ecosystems are changing fast.
DFO Climate Change Science Community Needs Evaluation 2025 is a national review of priorities to strengthen our science, collaboration, and resilience in the face of climate change.
bit.ly/4o6zFyn
🧵👇
1/8
November 19, 2025 at 8:47 PM
New report out 🌡️⚓🚢🪸🌊🐟!
Canada’s oceans and freshwater ecosystems are changing fast.
DFO Climate Change Science Community Needs Evaluation 2025 is a national review of priorities to strengthen our science, collaboration, and resilience in the face of climate change.
bit.ly/4o6zFyn
🧵👇
1/8
Canada’s oceans and freshwater ecosystems are changing fast.
DFO Climate Change Science Community Needs Evaluation 2025 is a national review of priorities to strengthen our science, collaboration, and resilience in the face of climate change.
bit.ly/4o6zFyn
🧵👇
1/8
Reposted by Guillaume Dauphin
"The North Atlantic may be approaching a critical tipping point under continued climate change."
Be sure to check out the latest State of the Cryosphere report
Essential reading for anyone working on or caring about our collective security
iccinet.org/statecryo25/
Be sure to check out the latest State of the Cryosphere report
Essential reading for anyone working on or caring about our collective security
iccinet.org/statecryo25/
State of the Cryosphere Report 2025 – ICCI – International Cryosphere Climate Initiative
iccinet.org
November 7, 2025 at 10:18 AM
"The North Atlantic may be approaching a critical tipping point under continued climate change."
Be sure to check out the latest State of the Cryosphere report
Essential reading for anyone working on or caring about our collective security
iccinet.org/statecryo25/
Be sure to check out the latest State of the Cryosphere report
Essential reading for anyone working on or caring about our collective security
iccinet.org/statecryo25/
Reposted by Guillaume Dauphin
A sneak peak of hopefully what is to come in CMIP7. We ran two CMIP6 climate models in CO2 emissions driven mode to 2300 - and the responses in the long term are very different.
Preprint: egusphere.copernicus.org/preprints/20...
Preprint: egusphere.copernicus.org/preprints/20...
November 7, 2025 at 11:48 AM
A sneak peak of hopefully what is to come in CMIP7. We ran two CMIP6 climate models in CO2 emissions driven mode to 2300 - and the responses in the long term are very different.
Preprint: egusphere.copernicus.org/preprints/20...
Preprint: egusphere.copernicus.org/preprints/20...
Reposted by Guillaume Dauphin
Friday ice update - #Arctic sea ice extent is currently the 3rd lowest on record (JAXA data)
• about 740,000 km² below the 2010s mean
• about 1,500,000 km² below the 2000s mean
• about 2,120,000 km² below the 1990s mean
• about 2,400,000 km² below the 1980s mean
More: zacklabe.com/arctic-sea-i...
• about 740,000 km² below the 2010s mean
• about 1,500,000 km² below the 2000s mean
• about 2,120,000 km² below the 1990s mean
• about 2,400,000 km² below the 1980s mean
More: zacklabe.com/arctic-sea-i...
November 7, 2025 at 1:55 PM
Friday ice update - #Arctic sea ice extent is currently the 3rd lowest on record (JAXA data)
• about 740,000 km² below the 2010s mean
• about 1,500,000 km² below the 2000s mean
• about 2,120,000 km² below the 1990s mean
• about 2,400,000 km² below the 1980s mean
More: zacklabe.com/arctic-sea-i...
• about 740,000 km² below the 2010s mean
• about 1,500,000 km² below the 2000s mean
• about 2,120,000 km² below the 1990s mean
• about 2,400,000 km² below the 1980s mean
More: zacklabe.com/arctic-sea-i...
Reposted by Guillaume Dauphin
a century of glaciers melting 🧪🌐
November 3, 2025 at 5:21 PM
a century of glaciers melting 🧪🌐
Reposted by Guillaume Dauphin
When baby salmon emerge from the gravel, how far do they disperse to summer rearing grounds? We haven't known until now (at least at the population scale), because they're too small to tag. In a paper just out, we answered this question using parentage-based (genetic) tagging! tinyurl.com/39b2sfjd
Watershed-scale dispersal patterns of juvenile Chinook Salmon (Oncorhynchus tshawytscha) revealed through genetic parentage analysis - Movement Ecology
Background For many aquatic taxa, juvenile dispersal from spawning locations to rearing habitats is a critical process influencing individual fitness and population dynamics. However, our understandin...
movementecologyjournal.biomedcentral.com
February 11, 2025 at 11:09 PM
When baby salmon emerge from the gravel, how far do they disperse to summer rearing grounds? We haven't known until now (at least at the population scale), because they're too small to tag. In a paper just out, we answered this question using parentage-based (genetic) tagging! tinyurl.com/39b2sfjd
Great study!
When the same data tells a different story… 📊🔍
You’d think analyzing the same dataset would lead to the same conclusions, but our new BMC Biology study shows otherwise. Different methods - different answers!
Why? It's complicated...
My experience in the study → 🔗 the3dlab.org/2025/02/06/w...
You’d think analyzing the same dataset would lead to the same conclusions, but our new BMC Biology study shows otherwise. Different methods - different answers!
Why? It's complicated...
My experience in the study → 🔗 the3dlab.org/2025/02/06/w...
When the same data tells a different story
Scientific research often presents itself as a search for truth—rigorous, objective, and driven by data. But what if the same dataset, analyzed by different researchers, leads to different conclusi…
the3dlab.org
February 7, 2025 at 9:15 AM
Great study!
Reposted by Guillaume Dauphin
🚨 After years of development, the new version of #rstats tmap (4) is now available on CRAN! 🎉 Huge thanks to author Martijn Tennekes and all contributors.
🔧 Install: `install.packages("tmap")`
📚 Vignettes: https://buff.ly/4aAYNbq
📖 Book Chapter: https://buff.ly/43TokaF
#maps #tmap #rspatial
🔧 Install: `install.packages("tmap")`
📚 Vignettes: https://buff.ly/4aAYNbq
📖 Book Chapter: https://buff.ly/43TokaF
#maps #tmap #rspatial
January 29, 2025 at 3:00 PM
🚨 After years of development, the new version of #rstats tmap (4) is now available on CRAN! 🎉 Huge thanks to author Martijn Tennekes and all contributors.
🔧 Install: `install.packages("tmap")`
📚 Vignettes: https://buff.ly/4aAYNbq
📖 Book Chapter: https://buff.ly/43TokaF
#maps #tmap #rspatial
🔧 Install: `install.packages("tmap")`
📚 Vignettes: https://buff.ly/4aAYNbq
📖 Book Chapter: https://buff.ly/43TokaF
#maps #tmap #rspatial
The only losers here are the customers who will stop getting the complete information on their source of food and how it is produced.
www.theguardian.com/uk-news/2025...
www.theguardian.com/uk-news/2025...
Scottish salmon producers allowed to remove ‘farmed’ from front of packaging
Government lawyers say ‘no need to include unnecessary pejorative words’ after campaigners appeal against change
www.theguardian.com
January 28, 2025 at 11:43 AM
The only losers here are the customers who will stop getting the complete information on their source of food and how it is produced.
www.theguardian.com/uk-news/2025...
www.theguardian.com/uk-news/2025...
Reposted by Guillaume Dauphin
Between 2019 and 2023, researchers paid $8.968 billion to make papers open access. Imagine what else could be done with this money if it wasnt paid to for profit publishing companies...
👉 arxiv.org/abs/2407.16551
👉 arxiv.org/abs/2407.16551
January 27, 2025 at 12:33 AM
Between 2019 and 2023, researchers paid $8.968 billion to make papers open access. Imagine what else could be done with this money if it wasnt paid to for profit publishing companies...
👉 arxiv.org/abs/2407.16551
👉 arxiv.org/abs/2407.16551
Reposted by Guillaume Dauphin
#fisheries
"We studied 230 fisheries around the world. We found populations of many overfished species are in far worse condition than has been reported, and the sustainability of fisheries was overstated. Urgent action is needed to ensure our oceans are not fished below their capacity to recover."
"We studied 230 fisheries around the world. We found populations of many overfished species are in far worse condition than has been reported, and the sustainability of fisheries was overstated. Urgent action is needed to ensure our oceans are not fished below their capacity to recover."
August 23, 2024 at 6:50 PM
#fisheries
"We studied 230 fisheries around the world. We found populations of many overfished species are in far worse condition than has been reported, and the sustainability of fisheries was overstated. Urgent action is needed to ensure our oceans are not fished below their capacity to recover."
"We studied 230 fisheries around the world. We found populations of many overfished species are in far worse condition than has been reported, and the sustainability of fisheries was overstated. Urgent action is needed to ensure our oceans are not fished below their capacity to recover."
I’ve just done my #eXit! the X exodus is massive. Don't lose any of your followers. Thanks to #HelloQuitX I've registered 413 new passengers for a journey to #BlueSky & #Mastodon. Join us on app.helloquitx.com and automatically find your communities on #January20!
HelloQuitteX
Libérez vos espaces numériques
app.helloquitx.com
January 23, 2025 at 6:58 PM
I’ve just done my #eXit! the X exodus is massive. Don't lose any of your followers. Thanks to #HelloQuitX I've registered 413 new passengers for a journey to #BlueSky & #Mastodon. Join us on app.helloquitx.com and automatically find your communities on #January20!
January 31, 2025 at 12:27 PM
When you hear about how some raw data is processed by someone not well versed in R/coding and write a 'little' function that results in consistent, trackable reliable outputs and is 300x folds faster than the previous method :D
#LifeOfAnUnemployedDataWrangler
#LifeOfAnUnemployedDataWrangler
January 31, 2025 at 12:27 PM
When you hear about how some raw data is processed by someone not well versed in R/coding and write a 'little' function that results in consistent, trackable reliable outputs and is 300x folds faster than the previous method :D
#LifeOfAnUnemployedDataWrangler
#LifeOfAnUnemployedDataWrangler
DFO peeps, any RES who have been allowed to report to a different region than their region of hiring ?
Feel free to dm if you do not wish to mention this publicly.
Feel free to dm if you do not wish to mention this publicly.
January 31, 2025 at 12:27 PM
DFO peeps, any RES who have been allowed to report to a different region than their region of hiring ?
Feel free to dm if you do not wish to mention this publicly.
Feel free to dm if you do not wish to mention this publicly.
January 31, 2025 at 12:27 PM
Nice review of this attempted reintroduction campaign.
Reintroducing Atlantic salmon in the river Rhine for decades: Why did it not result in the return of a viable population? - Rijssel - River Research and Applications - Wiley Online Library
onlinelibrary.wiley.com/doi/10.1002/rr…
Reintroducing Atlantic salmon in the river Rhine for decades: Why did it not result in the return of a viable population? - Rijssel - River Research and Applications - Wiley Online Library
onlinelibrary.wiley.com/doi/10.1002/rr…
Reintroducing Atlantic salmon in the river Rhine for decades: Why did it not result in the return of a viable population?
Freshwater species biodiversity is under threat. The average global decline for migratory fish species is estimated to be more than 75% since 1970. Atlantic salmon is one of these species with a stee...
onlinelibrary.wiley.com
January 31, 2025 at 12:27 PM
Nice review of this attempted reintroduction campaign.
Reintroducing Atlantic salmon in the river Rhine for decades: Why did it not result in the return of a viable population? - Rijssel - River Research and Applications - Wiley Online Library
onlinelibrary.wiley.com/doi/10.1002/rr…
Reintroducing Atlantic salmon in the river Rhine for decades: Why did it not result in the return of a viable population? - Rijssel - River Research and Applications - Wiley Online Library
onlinelibrary.wiley.com/doi/10.1002/rr…
January 31, 2025 at 12:27 PM
Cool paper looking at an interesting method to automate scale reading.
It also treats the scale as a whole instead of looking tat a single transect.
academic.oup.com/biomethods/art…
It also treats the scale as a whole instead of looking tat a single transect.
academic.oup.com/biomethods/art…
A semi-automated spectral approach to analyzing cyclical growth patterns using fish scales
Abstract. We introduce a new semi-automated approach to analyzing growth patterns recorded on fish scales. After manually specifying the center of the scal
academic.oup.com
January 31, 2025 at 12:26 PM
Cool paper looking at an interesting method to automate scale reading.
It also treats the scale as a whole instead of looking tat a single transect.
academic.oup.com/biomethods/art…
It also treats the scale as a whole instead of looking tat a single transect.
academic.oup.com/biomethods/art…
Nice paper, once again illustrating the value of long term monitoring programs for assessment purposes but also providing opportunities to answer research questions that could not be tackled otherwise.
t.co/prfkwh5d3B
t.co/prfkwh5d3B
January 31, 2025 at 12:26 PM
Nice paper, once again illustrating the value of long term monitoring programs for assessment purposes but also providing opportunities to answer research questions that could not be tackled otherwise.
t.co/prfkwh5d3B
t.co/prfkwh5d3B
When your organization refuses to allow you to report to a different office forcing you to go on leave-without-pay on the premise that your work can't be done remotely and you end up being unemployed and still doing your job remotely because Science projects don't stop ...
January 31, 2025 at 12:26 PM
When your organization refuses to allow you to report to a different office forcing you to go on leave-without-pay on the premise that your work can't be done remotely and you end up being unemployed and still doing your job remotely because Science projects don't stop ...
We are looking for a motivated individual with strong modeling and data management skills for a two-years post-doctoral fellowship to work on changes in body size of wild adult Atlantic salmon (Salmo salar) in Eastern Canada over a multi-decadal period.
January 31, 2025 at 12:26 PM
We are looking for a motivated individual with strong modeling and data management skills for a two-years post-doctoral fellowship to work on changes in body size of wild adult Atlantic salmon (Salmo salar) in Eastern Canada over a multi-decadal period.
Permanent researcher position (hydrologist) in the Gulf region.
Deadline: April 4th
Description and application:
emploisfp-psjobs.cfp-psc.gc.ca/psrs-srfp/appl…
Deadline: April 4th
Description and application:
emploisfp-psjobs.cfp-psc.gc.ca/psrs-srfp/appl…
Aquatic Research Scientist
Closing date:
4 April 2022 - 23:59, Pacific Time
emploisfp-psjobs.cfp-psc.gc.ca
January 31, 2025 at 12:26 PM
Permanent researcher position (hydrologist) in the Gulf region.
Deadline: April 4th
Description and application:
emploisfp-psjobs.cfp-psc.gc.ca/psrs-srfp/appl…
Deadline: April 4th
Description and application:
emploisfp-psjobs.cfp-psc.gc.ca/psrs-srfp/appl…
While I'm at it:
An international workshop to share your latest research and expertise in the field of acoustic cameras in ecological studies will take place in Rennes, FR on March 15-17 2022.
Details+registration⬇️
anacadir.workshop.inrae.fr
An international workshop to share your latest research and expertise in the field of acoustic cameras in ecological studies will take place in Rennes, FR on March 15-17 2022.
Details+registration⬇️
anacadir.workshop.inrae.fr
Home
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anacadir.workshop.inrae.fr
January 31, 2025 at 12:25 PM
While I'm at it:
An international workshop to share your latest research and expertise in the field of acoustic cameras in ecological studies will take place in Rennes, FR on March 15-17 2022.
Details+registration⬇️
anacadir.workshop.inrae.fr
An international workshop to share your latest research and expertise in the field of acoustic cameras in ecological studies will take place in Rennes, FR on March 15-17 2022.
Details+registration⬇️
anacadir.workshop.inrae.fr