Dr. Cosima Porteus
@cosimaporteus.bsky.social
Asst Prof #UTSC Comparative physiologist working on #climatechange #hypoxia #oceanacidification effects on aquatic organisms #senses physiology and behaviour. Opinions my own. She/her
Pinned
Effects of hypoxia on the olfactory sensitivity of gilt-head seabream (Sparus aurata)
Highlighted Article: Electrophysiology shows that low external oxygen levels can impair the olfactory sensitivity of a coastal marine fish species.
journals.biologists.com
🐟 New paper out where we show that aquartic hypoxia affects the olfaction of marine fish! Work by @liamtigert.bsky.social during a @biologists.bsky.social travelling fellowship to work at CCMar with Peter Hubbard
journals.biologists.com/jeb/article/...
@utsc.bsky.social @utscbiology.bsky.social
journals.biologists.com/jeb/article/...
@utsc.bsky.social @utscbiology.bsky.social
Check out our latest research on how ocean acidification affects marine sticklebacks from former postdoc Dr. Rex Yoon.
doi.org/10.1002/jez....
@utscbiology.bsky.social @utscresearch.bsky.social
doi.org/10.1002/jez....
@utscbiology.bsky.social @utscresearch.bsky.social
November 9, 2025 at 1:48 PM
Check out our latest research on how ocean acidification affects marine sticklebacks from former postdoc Dr. Rex Yoon.
doi.org/10.1002/jez....
@utscbiology.bsky.social @utscresearch.bsky.social
doi.org/10.1002/jez....
@utscbiology.bsky.social @utscresearch.bsky.social
You can download the planet health report here. Sombering yet hopeful news!
www.planetaryhealthcheck.org
www.planetaryhealthcheck.org
Homepage - Planetary Health Check
We have breached 7 out of 9 Planetary Boundaries.The Planetary Health Check 2025 makes it clear: We have to act now.
www.planetaryhealthcheck.org
September 24, 2025 at 10:44 PM
You can download the planet health report here. Sombering yet hopeful news!
www.planetaryhealthcheck.org
www.planetaryhealthcheck.org
I was interviewed by the CBC on a new report on the state of our planet. Check it out ⬇️⬇️
www.cbc.ca/news/climate...
@utscbiology.bsky.social @utscresearch.bsky.social
www.cbc.ca/news/climate...
@utscbiology.bsky.social @utscresearch.bsky.social
Oceans have crossed 'safe' acidic threshold, scientists warn | CBC News
The latest Planetary Health Check report says ocean acidification has reached risky territory. Experts say it will reduce our oceans’ ability to absorb the carbon we emit and also weaken the shellfish...
www.cbc.ca
September 24, 2025 at 9:57 PM
I was interviewed by the CBC on a new report on the state of our planet. Check it out ⬇️⬇️
www.cbc.ca/news/climate...
@utscbiology.bsky.social @utscresearch.bsky.social
www.cbc.ca/news/climate...
@utscbiology.bsky.social @utscresearch.bsky.social
Our lab was at the Toronto Zoo as part of Science Rendezvous. We had fun talking to kids and adults about the sense of smell of fish! @liamtigert.bsky.social @utscbiology.bsky.social @utscresearch.bsky.social
May 10, 2025 at 9:54 PM
Our lab was at the Toronto Zoo as part of Science Rendezvous. We had fun talking to kids and adults about the sense of smell of fish! @liamtigert.bsky.social @utscbiology.bsky.social @utscresearch.bsky.social
I'm looking for a post doc to work on the effects of CO2 and diet on lake whitefish growth and physiology in collaboration with Dr David Huyben. Term 12 months, salary 60k CAD. More info here utsc.utoronto.ca/biosci/emplo.... Deadline May 18! @utscbiology.bsky.social
April 17, 2025 at 2:59 PM
I'm looking for a post doc to work on the effects of CO2 and diet on lake whitefish growth and physiology in collaboration with Dr David Huyben. Term 12 months, salary 60k CAD. More info here utsc.utoronto.ca/biosci/emplo.... Deadline May 18! @utscbiology.bsky.social
Rose did great work in the lab! A very talented researcher! It was a pleasure mentoring and working with her!! #proudsupervisor @utscbiology.bsky.social @utscresearch.bsky.social
We’re excited to hear about Roselaide Decker’s work from the @cosimaporteus.bsky.social Porteus lab!
This story underlines the importance of applying for Undergraduate Student Research Awards.
This story underlines the importance of applying for Undergraduate Student Research Awards.
Black Research Network: ‘Science and possibility’: UTSC student steps towards research career with national funding program
When Roselaide Decker first started at the University of Toronto Scarborough, she made a list of research programs to pursue. A top...
brn.utoronto.ca
February 27, 2025 at 1:15 AM
Rose did great work in the lab! A very talented researcher! It was a pleasure mentoring and working with her!! #proudsupervisor @utscbiology.bsky.social @utscresearch.bsky.social
TT job in Comparative Physiology at U Ottawa. Check it out!
www.affairesuniversitaires.ca/trouver-un-e...
www.affairesuniversitaires.ca/trouver-un-e...
Emplois - Affaires universitaires
www.affairesuniversitaires.ca
February 16, 2025 at 9:19 PM
TT job in Comparative Physiology at U Ottawa. Check it out!
www.affairesuniversitaires.ca/trouver-un-e...
www.affairesuniversitaires.ca/trouver-un-e...
Reposted by Dr. Cosima Porteus
🍁Please repost
📣 3 tenure track positions @umanitoba.bsky.social Bio Sci. All positions are in cell and systems biology:
1 in syn bio or biochem
2 in aquatic organisms (🌿, 🐟, 🪱, …)
Genetics, dev bio, cell bio, specialized metabolism…
viprecprod.ad.umanitoba.ca/default.ASPX...
viprecprod.ad.umanitoba.ca
December 16, 2024 at 8:23 PM
🍁Please repost
📣 3 tenure track positions @umanitoba.bsky.social Bio Sci. All positions are in cell and systems biology:
1 in syn bio or biochem
2 in aquatic organisms (🌿, 🐟, 🪱, …)
Genetics, dev bio, cell bio, specialized metabolism…
viprecprod.ad.umanitoba.ca/default.ASPX...
Had a great time calibrating our @loligo.bsky.social fish swim tunnel today with my MSc student, Gary. Took a couple of tries but got it working! @utscbiology.bsky.social
January 28, 2025 at 2:36 AM
Had a great time calibrating our @loligo.bsky.social fish swim tunnel today with my MSc student, Gary. Took a couple of tries but got it working! @utscbiology.bsky.social
Reposted by Dr. Cosima Porteus
Using biologging approaches to obtain insights on animal physiology for conservation and management? Interested in new technological developments in biologging? 🐿️🐍🐟🐢🐅🐬🐘🦉🦇Join us in our symposium and workshop at the @sebiology.bsky.social conference in July! Submit your abstract to session A16.
SEB Annual Conference Antwerp 2025
Abstract submissions will open from Monday 6th January until Friday 7th March 2025
www.sebiology.org
January 14, 2025 at 7:57 AM
Using biologging approaches to obtain insights on animal physiology for conservation and management? Interested in new technological developments in biologging? 🐿️🐍🐟🐢🐅🐬🐘🦉🦇Join us in our symposium and workshop at the @sebiology.bsky.social conference in July! Submit your abstract to session A16.
And we made the cover of the first issue of 2025!! @jexpbiol.bsky.social @liamtigert.bsky.social @utscbiology.bsky.social @utsc.bsky.social
Issue 1 has closed and issue 2 is open
journals.biologists.com/jeb/issue/22...
The cover image, by João Encarnação, shows a gilthead seabream (Sparus aurata) swimming by a man-made structure covered in algae
@cosimaporteus.bsky.social
journals.biologists.com/jeb/issue/22...
The cover image, by João Encarnação, shows a gilthead seabream (Sparus aurata) swimming by a man-made structure covered in algae
@cosimaporteus.bsky.social
January 15, 2025 at 5:57 PM
And we made the cover of the first issue of 2025!! @jexpbiol.bsky.social @liamtigert.bsky.social @utscbiology.bsky.social @utsc.bsky.social
A 🧵 about some interesting findings from our latest paper:
1)external hypoxia not hypoxaemia (internal hypoxia) causes a decrease in olfactory sensitivity in seabream
@utsc.bsky.social @utscbiology.bsky.social @liamtigert.bsky.social
journals.biologists.com/jeb/article/...
1)external hypoxia not hypoxaemia (internal hypoxia) causes a decrease in olfactory sensitivity in seabream
@utsc.bsky.social @utscbiology.bsky.social @liamtigert.bsky.social
journals.biologists.com/jeb/article/...
January 15, 2025 at 4:16 AM
A 🧵 about some interesting findings from our latest paper:
1)external hypoxia not hypoxaemia (internal hypoxia) causes a decrease in olfactory sensitivity in seabream
@utsc.bsky.social @utscbiology.bsky.social @liamtigert.bsky.social
journals.biologists.com/jeb/article/...
1)external hypoxia not hypoxaemia (internal hypoxia) causes a decrease in olfactory sensitivity in seabream
@utsc.bsky.social @utscbiology.bsky.social @liamtigert.bsky.social
journals.biologists.com/jeb/article/...
Great job @liamtigert.bsky.social!
Human pollution & climate change are sapping coastal waters of oxygen & now Liam Tigert, Peter Hubbard & @cosimaporteus.bsky.social show that fish struggle to smell some food odours when O2 levels are low, although the sense recovers when O2 returns to normal
journals.biologists.com/jeb/article/...
journals.biologists.com/jeb/article/...
January 15, 2025 at 1:31 AM
Great job @liamtigert.bsky.social!
🐟 New paper out where we show that aquartic hypoxia affects the olfaction of marine fish! Work by @liamtigert.bsky.social during a @biologists.bsky.social travelling fellowship to work at CCMar with Peter Hubbard
journals.biologists.com/jeb/article/...
@utsc.bsky.social @utscbiology.bsky.social
journals.biologists.com/jeb/article/...
@utsc.bsky.social @utscbiology.bsky.social
Effects of hypoxia on the olfactory sensitivity of gilt-head seabream (Sparus aurata)
Highlighted Article: Electrophysiology shows that low external oxygen levels can impair the olfactory sensitivity of a coastal marine fish species.
journals.biologists.com
January 13, 2025 at 11:32 PM
🐟 New paper out where we show that aquartic hypoxia affects the olfaction of marine fish! Work by @liamtigert.bsky.social during a @biologists.bsky.social travelling fellowship to work at CCMar with Peter Hubbard
journals.biologists.com/jeb/article/...
@utsc.bsky.social @utscbiology.bsky.social
journals.biologists.com/jeb/article/...
@utsc.bsky.social @utscbiology.bsky.social
Reposted by Dr. Cosima Porteus
Our fully 3D-printed microscope is featured in @newscientist.bsky.social www.newscientist.com/article/2462...
World’s first fully 3D-printed microscope made in under 3 hours
The microscope cost less than £50 to build using an open-source design and a common 3D printer
www.newscientist.com
January 10, 2025 at 9:44 PM
Our fully 3D-printed microscope is featured in @newscientist.bsky.social www.newscientist.com/article/2462...
In the lab 😁 finally getting around to testing a new piece of equipment - LI-COR DIC analyzer. Love the nice peak! This will support our climate change research on fish! @utscbiology.bsky.social @utsc.bsky.social Thank you to CFI for funding to buy this incredible machine!
January 10, 2025 at 10:14 PM
In the lab 😁 finally getting around to testing a new piece of equipment - LI-COR DIC analyzer. Love the nice peak! This will support our climate change research on fish! @utscbiology.bsky.social @utsc.bsky.social Thank you to CFI for funding to buy this incredible machine!
Reposted by Dr. Cosima Porteus
Now that I have some followers here, figured I'd post this here too: we have an ongoing cluster hire (THREE faculty positions) in Biology at Lakehead- transformational change in the department. Will provide links to each position in a thread below, but please DM or reach out with questions (1/6)
November 26, 2024 at 7:03 PM
Now that I have some followers here, figured I'd post this here too: we have an ongoing cluster hire (THREE faculty positions) in Biology at Lakehead- transformational change in the department. Will provide links to each position in a thread below, but please DM or reach out with questions (1/6)
The Porteus lab winter holiday outing! Delicious Mexican food at The Distillery district followed by AXE THROWING! So much fun! So lucky to have such an amazing team! @utscbiology.bsky.social @utsc.bsky.social
December 18, 2024 at 12:23 AM
The Porteus lab winter holiday outing! Delicious Mexican food at The Distillery district followed by AXE THROWING! So much fun! So lucky to have such an amazing team! @utscbiology.bsky.social @utsc.bsky.social
Reposted by Dr. Cosima Porteus
From 1.5C to 2C of global warming is an increase by 33.3 percent. Many people assume that the negative impacts of this would also increase by only 33.3 percent. Unfortunately, that is not the case. The increase is non-linear.
This is one of the biggest missing pieces in public climate literacy.
This is one of the biggest missing pieces in public climate literacy.
December 13, 2024 at 4:49 PM
From 1.5C to 2C of global warming is an increase by 33.3 percent. Many people assume that the negative impacts of this would also increase by only 33.3 percent. Unfortunately, that is not the case. The increase is non-linear.
This is one of the biggest missing pieces in public climate literacy.
This is one of the biggest missing pieces in public climate literacy.
Was so much fun going back to my old high school to talk about #oceanacidification combining #chemistry & #biology #STEMcareers #outreach @utscbiology.bsky.social @utsc.bsky.social
November 28, 2024 at 12:45 AM
Was so much fun going back to my old high school to talk about #oceanacidification combining #chemistry & #biology #STEMcareers #outreach @utscbiology.bsky.social @utsc.bsky.social
Reposted by Dr. Cosima Porteus
We strongly suggest that academic publishers and other platforms that host research rapidly implement a Share to Bluesky button for their articles. Here's how:
docs.bsky.app/docs/advance...
#AcademicSky #HigherEd #Altmetrics
docs.bsky.app/docs/advance...
#AcademicSky #HigherEd #Altmetrics
Action Intent Links | Bluesky
Authors, websites, and apps can use action intent links to implement "Share on Bluesky" buttons, or similar in-app actions. Logged-in users will be directed to the corresponding action view in the Blu...
docs.bsky.app
November 18, 2024 at 2:48 PM
We strongly suggest that academic publishers and other platforms that host research rapidly implement a Share to Bluesky button for their articles. Here's how:
docs.bsky.app/docs/advance...
#AcademicSky #HigherEd #Altmetrics
docs.bsky.app/docs/advance...
#AcademicSky #HigherEd #Altmetrics
Reposted by Dr. Cosima Porteus
November 18 is the International Day of LGBQTIA+ People in STEM! Today more than ever we want to stress the importance of communities, building connections, and raising each other up. Let's keep leaving our mark for the betterment of us all! 🏳️⚧️🏳️🌈 #QueerinSTEM
prideinstem.org/lgbtstemday/
prideinstem.org/lgbtstemday/
November 18, 2024 at 8:55 AM
November 18 is the International Day of LGBQTIA+ People in STEM! Today more than ever we want to stress the importance of communities, building connections, and raising each other up. Let's keep leaving our mark for the betterment of us all! 🏳️⚧️🏳️🌈 #QueerinSTEM
prideinstem.org/lgbtstemday/
prideinstem.org/lgbtstemday/
Reposted by Dr. Cosima Porteus
We’re hiring for NINE jobs at Nature Conservancy of Canada (NCC): www.natureconservancy.ca/en/who-we-ar...
Some have flexible location anywhere in 🇨🇦.
Reading NCC’s website (esp. strategic plan, geographic & thematic work, recent annual reports) always helps to prepare.
#ConservationJobs
Some have flexible location anywhere in 🇨🇦.
Reading NCC’s website (esp. strategic plan, geographic & thematic work, recent annual reports) always helps to prepare.
#ConservationJobs
November 16, 2024 at 4:08 AM
We’re hiring for NINE jobs at Nature Conservancy of Canada (NCC): www.natureconservancy.ca/en/who-we-ar...
Some have flexible location anywhere in 🇨🇦.
Reading NCC’s website (esp. strategic plan, geographic & thematic work, recent annual reports) always helps to prepare.
#ConservationJobs
Some have flexible location anywhere in 🇨🇦.
Reading NCC’s website (esp. strategic plan, geographic & thematic work, recent annual reports) always helps to prepare.
#ConservationJobs
Great to host Dr. Erin Leonard @utsc.bsky.social
BIOLOGY SEMINAR
"Surviving the waves: Managing multiple stressors in aquatic ecosystems"
Dr. Erin Leonard
Assistant Professor, Biology
Wilfred Laurier University
Friday, November 15th, 12 pm in SW403
"Surviving the waves: Managing multiple stressors in aquatic ecosystems"
Dr. Erin Leonard
Assistant Professor, Biology
Wilfred Laurier University
Friday, November 15th, 12 pm in SW403
November 16, 2024 at 3:24 PM
Great to host Dr. Erin Leonard @utsc.bsky.social
Come join our department! ⬇️⬇️
Come join us!
We are hiring for the rank of Assistant Professor of "Plant Synthetic Biology & Metabolic Engineering for Human Health."
Application window closes December 2, 2024.
jobs.utoronto.ca/job/Toronto-...
Please RT widely
We are hiring for the rank of Assistant Professor of "Plant Synthetic Biology & Metabolic Engineering for Human Health."
Application window closes December 2, 2024.
jobs.utoronto.ca/job/Toronto-...
Please RT widely
November 16, 2024 at 3:22 PM
Come join our department! ⬇️⬇️