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Caleb Hasler

@calebhasler.bsky.social
1.2K followers 1.2K following 86 posts

Professor, University of Winnipeg, Fish Biology and Aquatic Conservation Lab, Dad to Hugh, Husband to Jen, From parts unknown. calebthasler.wordpress.com

PostsRepliesMedia
Reposted by Caleb Hasler
Aaron Rupar @atrupar.com · 18/09/2026
Trump: "I could've banned fishing. The power of this office is crazy. I could've banned fishing. I think I'm gonna do that."
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Caleb Hasler @calebhasler.bsky.social · 17/08/2026
static.klipy.com
The Lorax: Oh, That's Bad
ALT: The Lorax: Oh, That's Bad
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Marco Festa-Bianchet 🇨🇦 @marcofesta.bsky.social · 29/07/2026
Letter from 5 former chairs of COSEWIC to Canadian gov't expressing alarm over plans to ignore Species at Risk Act and other environmental legislation if they feel like it. Liberals will let orcas go extinct to subsidize big oil, Imagine what a future tory gov't may do 😱 www.sfu.ca/~amooers/sci...
sfu.ca
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UWinnipeg @uwinnipeg.bsky.social · 07/07/2026
#UWinnipeg is pleased to announce the appointment of Dr. Tabitha Wood as Dean of the Faculty of Science, effective July 1, 2026. Dr. Wood has served as Acting Dean since July 2025. LEARN MORE ⬇️
news.uwinnipeg.ca
Dr. Tabitha Wood appointed Dean of the Faculty of Science | University of Winnipeg News
The University of Winnipeg is pleased to announce the appointment of Dr. Tabitha Wood as Dean of the Faculty of Science, effective July 1, 2026.
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Caleb Hasler @calebhasler.bsky.social · 26/06/2026
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Caleb Hasler @calebhasler.bsky.social · 26/06/2026
U of W delivers lesson for downtown development www.winnipegfreepress.com/opinion/anal...
winnipegfreepress.com
Opinion: U of W delivers lesson for downtown development
A few weeks back, I moderated a lively discussion on the future of Winnipeg’s downtown. It was a conversation that has been held many times before and certainly won’t be the last.
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Caleb Hasler @calebhasler.bsky.social · 22/06/2026
Advertise your Bluesky account with A Simpsons Gif GIF
static.klipy.com
The Simpsons: Blinky the Three-Eyed Fish
ALT: The Simpsons: Blinky the Three-Eyed Fish
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Caleb Hasler @calebhasler.bsky.social · 17/06/2026
I (and co-authors) once reviewed ozone as a possible AIS deterrent …it’s pretty effective for phytoplankton…though to treat that much water it must be hella expensive. See calebthasler.wordpress.com/wp-content/u...
calebthasler.wordpress.com
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Reposted by Caleb Hasler
Markus Eichhorn @markuseichhorn.bsky.social · 11/06/2026
Bob Ricklefs RIP. One of the giants of ecology. His textbooks were the gateway to the field for many students. His papers were invariably thoughtful, well-argued and provocative, even those I disagreed with. 🌏🧪🌐
dynamicecology.wordpress.com
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Caleb Hasler @calebhasler.bsky.social · 12/06/2026
I was reviewer 6 (!!!) of a revised MS that I didn't even review the first time around. I was brief in my comments...but also registered my frustration with the editor.
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Reposted by Caleb Hasler
David Ho @davidho.bsky.social · 04/05/2025
I think a lot about what Carl Sagan said in one of his final interviews.
"WE'VE ARRANGED A society based on science and technology, in which nobody understands anything about science technology. And this combustible mixture of ignorance and power, sooner or later, is going to blow up in our faces. Who is running the science and technology in a democracy if the people don't know anything about it?"
"Science is more than a body of knowledge, it's a way of thinking. A way of skeptically interrogating the universe with a fine understanding of human fallibility. If we are not able to ask skeptical questions, to interrogate those who tell us that something is true, to be skeptical of those in authority, then we're up for grabs for the next charlatan, political or religious, who comes ambling along."
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Caleb Hasler @calebhasler.bsky.social · 19/05/2026
It’s almost refreshing to see spelling errors and awkward run-on sentences!
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Caleb Hasler @calebhasler.bsky.social · 19/05/2026
Yeah, I agree, long emails could be a sign LLMs were used. The bias towards em dashes used to be a good indicator, too.
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Caleb Hasler @calebhasler.bsky.social · 19/05/2026
Are you good at distinguishing between LLM generated messages and human writing? I’m not sure I could confidently do it these days.
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Will Bugg @wbuggiii.bsky.social · 28/04/2026
Ongoing DFO cuts to the Genomics Program and across the organization further compromise the capacity to conduct critical research evaluating the impacts of cumulative stressors and pathogens on salmon survival and to aid in the conservation of imperiled stocks 🧪🌎🌐🦑🐟 thetyee.ca/News/2026/04...
thetyee.ca
Salmon Scientists Warn the DFO Is Killing a Crucial Lab | The Tyee
The genomics program opened up the ‘black box’ of wild fish research. Former and current staff say it’s been gutted.
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Caleb Hasler @calebhasler.bsky.social · 27/04/2026
media.tenor.com
a man in purple pants holds a red bowling ball with a star on it
ALT: a man in purple pants holds a red bowling ball with a star on it
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Anthony Michael Kreis @anthonymkreis.bsky.social · 23/04/2026
Texas Tech and Texas A&M are no longer universities and we should not treat them or refer to them as such.
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Aaron Rupar @atrupar.com · 23/04/2026
RFK Jr: "A Democratic senator claimed it's mathematically impossible to have a drug drop by 600%. I said, 'Well, if the drug was $100 and it raises to $600, that would be a 600% rise. If it drops from $600 to $100, that's a 600% savings.'" Trump: "Right"
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Caleb Hasler @calebhasler.bsky.social · 21/04/2026
With the travel grant, I was docked points (it's a normal procedure for the evaluations) because I was a full prof...so at least they favoured ECRs.
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Caleb Hasler @calebhasler.bsky.social · 15/04/2026
Thanks! It is a big relief.
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Caleb Hasler @calebhasler.bsky.social · 15/04/2026
Being awarded an NSERC DG one week and having an internal travel grant declined the next week is a feeling I never thought I would experience. Oh well...failure is normal, and success finds a way.
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Caleb Hasler @calebhasler.bsky.social · 10/04/2026
Will the bubble curtain be air or CO2?
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Caleb Hasler @calebhasler.bsky.social · 09/04/2026
Cool paper - I'm definitely adding this to anglerfish lecture!
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Reposted by Caleb Hasler
Marco Festa-Bianchet 🇨🇦 @marcofesta.bsky.social · 31/03/2026
When Australians poison dingos, they call them wild dogs. When Canadians poison ground squirrels, they call them gophers. Awful stuff, will kill hawks, foxes etc. that eat poisoned squirrels. Weirdly, Health Canada claims that there is a 'safe level' of strychnine 🤡 www.cbc.ca/news/canada/...
cbc.ca
Ottawa authorizes emergency use of strychnine in Alberta, Saskatchewan to address gopher infestation | CBC News
Ottawa is authorizing the controlled and time-limited emergency use of strychnine to address millions of dollars worth of damage in Alberta and Saskatchewan caused by an infestation of Richardson's gr...
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Caleb Hasler @calebhasler.bsky.social · 31/03/2026
I should also mention, J. French did earlier work on Lake Erie.
media.tenor.com
a man wearing a black jacket and a red sweater is standing in front of a shelf full of canned goods
ALT: a man wearing a black jacket and a red sweater is standing in front of a shelf full of canned goods
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Caleb Hasler @calebhasler.bsky.social · 31/03/2026
I'm surprised they say this is the first study...my honours student published on this topic (for Lake Winnipeg) in this journal!
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Caleb Hasler @calebhasler.bsky.social · 30/03/2026
Stephen, you need some whiskey bottles!
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Caleb Hasler @calebhasler.bsky.social · 11/03/2026
Thanks, Katie! This is a cool paper, too. It's suggests the CAWS has fairly polluted water, and the carp don't have healthy mRNA profiles (doi.org/10.1016/j.cb...)
doi.org
Redirecting
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Caleb Hasler @calebhasler.bsky.social · 11/03/2026
Oddly enough, I lectured on the bigheaded carp invasion yesterday! I don't think the adult population front has moved much in the last 10 years...is that right?
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Caleb Hasler @calebhasler.bsky.social · 04/03/2026
But! Fish don't exist...so, feel free to call them unicorns and dragons.
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Brenda Peters RN(NP), PhD 🇨🇦 @brenda-peters.bsky.social · 25/02/2026
By accepting the president’s invitation, Hellebuyck and most of his American teammates cemented themselves as characters in the narrative of a political leader with tyrannical aspirations who has spent the last year dismantling one of the world’s oldest democracies.
winnipegfreepress.com
Opinion: Hellebuyck faces tough save with Winnipeggers after fool’s gold-plated day with Trump
Connor Hellebuyck has given the people of Winnipeg all the reasons in the world to love him, both as an athlete and a human being. The star goaltender for the Winnipeg Jets has been a stoic presence i...
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UWinnipeg @uwinnipeg.bsky.social · 11/02/2026
ICYMI, two #UWinnipeg professors were on @ctvnewswinnipeg.bsky.social Your Morning yesterday as part of a @researchmb.bsky.social showcase! Dr. Sanoji Wijenayake discussed human milk nanovesicles.
youtu.be
Studies on breast milk in Manitoba
YouTube video by CTV News
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Shaun Killen @shaunkillen.bsky.social · 09/02/2026
We face two potential missteps in ecophysiology: 1) measuring animals under socially unrealistic conditions & 2) extrapolating results to nature, where social dynamics alter trait expression, plasticity, & evolutionary outcomes. Our new commentary in @jexpbiol.bsky.social : doi.org/10.1242/jeb....
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Caleb Hasler @calebhasler.bsky.social · 09/02/2026
Neat. A PDF from my lab shows stress axis is altered in lake trout offspring after their moms are treated as if caught and releases. doi.org/10.1002/jez....
doi.org
Stress in Female Lake Trout (Salvelinus namaycush) Before Spawning Alters Offspring Cortisol and Growth
Catch-and-release angling (C&R) is a conservation strategy that assumes released fish survive and contribute to populations. However, C&R stress, particularly during spawning, may impact reproductive...
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Caleb Hasler @calebhasler.bsky.social · 19/12/2025
You should buy these books...the editing is stellar :)
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American Fisheries Society @amfisheriessoc.bsky.social · 19/12/2025
"Methods for Fish Biology"? "Freshwater Fisheries in Canada"? More like "Methods for Fish Book Buying" and "Freshwater Fisheries in Your Cart"! Grab your copies from the AFS Bookstore Sale today, before this sale swims away! fisheries.org/2025/12/2025...
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Maggie Macintosh @maggiemacintosh.bsky.social · 10/12/2025
A University of Winnipeg professor who researches poverty and urban renewal at the downtown campus is now its acting president. Jino Distasio, one of the most high-profile researchers at U of W, was named interim vice-chancellor Tuesday #mbed #wfp www.winnipegfreepress.com/breakingnews...
winnipegfreepress.com
Distasio named U of W interim president
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Titus Seilheimer @drfishsg.bsky.social · 05/12/2025
Fine-scale behaviour of walleye (Sander vitreus) on a spawning shoal in Hamilton Harbour, Ontario #GreatLakes 🧪 www.sciencedirect.com/science/arti... Great to see some labmates from McMaster U doing great things. Good job Jon and Mel! @sjcfishy.bsky.social @calebhasler.bsky.social
sciencedirect.com
Fine-scale behaviour of walleye (Sander vitreus) on a spawning shoal in Hamilton Harbour, Ontario
Re-establishment of a naturally reproducing walleye (Sander vitreus) population is a management objective for Hamilton Harbour, western Lake Ontario. …
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Reposted by Caleb Hasler
Jeff Clements 🦪 @biolumijeffence.bsky.social · 03/12/2025
Are you an #EarlyCareerResearcher interested in gaining editorial experience with a peer reviewed journal? Check out this brilliant opportunity with our journal over at @conphysjournal.bsky.social! @sebiology.bsky.social
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Alex Usher @alexusherhesa.bsky.social · 25/11/2025
Well now.
news.uwinnipeg.ca
Statement from the Chair of the Board of Regents | University of Winnipeg News
The Chair of the Board of Regents of the University of Winnipeg shares a statement.
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Bentley ****TALK CLIMATE**** @bigclimate.bsky.social · 23/09/2025
Alternatively: "Idiot Who Told Americans to Drink Bleach and that Tylenol Causes Autism Disparages Climate Change and Science." www.nytimes.com/2025/09/23/c... #ClimateChange #Trump #Tylenol #Autism
nytimes.com
Trump to World: Green Energy Is a Scam and Climate Science Is From ‘Stupid People’
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Caleb Hasler @calebhasler.bsky.social · 18/09/2025
Not to mention that the boots are already on the ground, and despite some paperwork, "we" can get people working on important topics almost immediately.
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Greg Priest @gregpriest.bsky.social · 10/09/2025
Stephen Jay Gould was born OTD in 1941. “Organisms are not billiard balls, propelled by simple and measurable external forces to predictable new positions on life's pool table.... Organisms have a history that constrains their future in myriad, subtle ways.” 🦫🦋🐋🌱🧠🗃️🧪#HistSTM #PhilSci #EvoBio
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Caleb Hasler @calebhasler.bsky.social · 09/09/2025
Great news for our Indigenous programs at @uwinnipeg.bsky.social!
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Wayne Maddison @waynemaddison.bsky.social · 05/09/2025
Confused writing is usually a symptom of confused thinking. As we struggle to clarify writing, we clarify our thoughts. AI writing aids rob us of that struggle, leaving clean-looking text and thoughts still confused for lack of inspection. Writing is not just a product; it is a diagnostic tool.
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Anthony Ricciardi @ecoinvasions.bsky.social · 12/08/2025
Nonnative species have been introduced to all regions worldwide - including Antarctica and the most remote islands. Numbers of nonnative species of all taxa are increasing across all regions, often accelerating, and likely underestimated. #bioinvasions onlinelibrary.wiley.com/doi/10.1111/...
onlinelibrary.wiley.com
Biological invasions: a global assessment of geographic distributions, long‐term trends, and data gaps
Biological invasions are one of the major drivers of biodiversity decline and have been shown to have far-reaching consequences for society and the economy. Preventing the introduction and spread of ....
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Caleb Hasler @calebhasler.bsky.social · 12/08/2025
How many answer with, "The Dude"?
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Caleb Hasler @calebhasler.bsky.social · 07/08/2025
I was told I wasn't allowed in people's pockets.
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NBC News @nbcnews.com · 07/08/2025
OpenAI releases the newest version of the AI model that powers its popular ChatGPT chatbot, with CEO Sam Altman promoting it as like having a “team of Ph.D. level experts in your pocket.”
nbcnews.to
OpenAI releases GPT-5, calling it a ‘team of Ph.D. level experts in your pocket’
OpenAI says its latest version of the popular AI model is better at coding, more accurate and less deceptive than previous versions.
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Caleb Hasler @calebhasler.bsky.social · 05/08/2025
what a "niche" post.
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