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Caleb Hasler

@calebhasler

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

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02.10.2023
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Latest posts by Caleb Hasler @calebhasler

But! Fish don't exist...so, feel free to call them unicorns and dragons.

04.03.2026 16:59 πŸ‘ 1 πŸ” 0 πŸ’¬ 0 πŸ“Œ 0
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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...

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.

25.02.2026 23:31 πŸ‘ 27 πŸ” 12 πŸ’¬ 1 πŸ“Œ 1
Studies on breast milk in Manitoba
Studies on breast milk in Manitoba YouTube video by CTV News

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.

11.02.2026 19:53 πŸ‘ 2 πŸ” 3 πŸ’¬ 1 πŸ“Œ 0
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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....

09.02.2026 13:24 πŸ‘ 44 πŸ” 15 πŸ’¬ 0 πŸ“Œ 4
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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...

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....

09.02.2026 14:03 πŸ‘ 0 πŸ” 0 πŸ’¬ 0 πŸ“Œ 0

You should buy these books...the editing is stellar :)

19.12.2025 21:05 πŸ‘ 2 πŸ” 0 πŸ’¬ 0 πŸ“Œ 0
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"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...

19.12.2025 16:30 πŸ‘ 6 πŸ” 5 πŸ’¬ 1 πŸ“Œ 0
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Distasio named U of W interim president

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...

10.12.2025 01:30 πŸ‘ 7 πŸ” 7 πŸ’¬ 0 πŸ“Œ 0
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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. …

Fine-scale behaviour of walleye (Sander vitreus) on a spawning shoal in Hamilton Harbour, Ontario

#GreatLakes πŸ§ͺ

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

05.12.2025 12:54 πŸ‘ 9 πŸ” 4 πŸ’¬ 0 πŸ“Œ 0

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

03.12.2025 14:08 πŸ‘ 8 πŸ” 7 πŸ’¬ 0 πŸ“Œ 0
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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.

Well now.

25.11.2025 17:18 πŸ‘ 7 πŸ” 3 πŸ’¬ 3 πŸ“Œ 3
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Trump to World: Green Energy Is a Scam and Climate Science Is From β€˜Stupid People’

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

23.09.2025 20:21 πŸ‘ 47 πŸ” 16 πŸ’¬ 3 πŸ“Œ 2

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.

18.09.2025 16:55 πŸ‘ 1 πŸ” 0 πŸ’¬ 0 πŸ“Œ 0
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Stephen Jay Gould was born OTD in 1941.

β€œOrganisms 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.”

πŸ¦«πŸ¦‹πŸ‹πŸŒ±πŸ§ πŸ—ƒοΈπŸ§ͺ#HistSTM #PhilSci #EvoBio

10.09.2025 16:41 πŸ‘ 156 πŸ” 44 πŸ’¬ 8 πŸ“Œ 8

Great news for our Indigenous programs at @uwinnipeg.bsky.social!

09.09.2025 17:38 πŸ‘ 1 πŸ” 0 πŸ’¬ 0 πŸ“Œ 0

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.

05.09.2025 15:20 πŸ‘ 396 πŸ” 126 πŸ’¬ 6 πŸ“Œ 15
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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 ....

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.Β #bioinvasions
onlinelibrary.wiley.com/doi/10.1111/...

12.08.2025 16:40 πŸ‘ 12 πŸ” 7 πŸ’¬ 0 πŸ“Œ 0

How many answer with, "The Dude"?

12.08.2025 14:16 πŸ‘ 3 πŸ” 0 πŸ’¬ 0 πŸ“Œ 0

I was told I wasn't allowed in people's pockets.

07.08.2025 19:34 πŸ‘ 1 πŸ” 0 πŸ’¬ 0 πŸ“Œ 0
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OpenAI releases GPT-5, calling it a β€˜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.

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 β€œteam of Ph.D. level experts in your pocket.”

07.08.2025 19:20 πŸ‘ 84 πŸ” 17 πŸ’¬ 347 πŸ“Œ 656

what a "niche" post.

05.08.2025 15:05 πŸ‘ 1 πŸ” 0 πŸ’¬ 0 πŸ“Œ 0

Sounds like you went mammaling!

26.07.2025 22:47 πŸ‘ 0 πŸ” 0 πŸ’¬ 0 πŸ“Œ 0
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Decline of whitefish in Lake Michigan sparks fears that the fish might disappear State regulators say the commercial harvest of lake whitefish in Lake Michigan has reached its lowest level since 1990, and some fisheries biologists fear the species might largely disappear in parts ...

Decline of whitefish in Lake Michigan sparks fears that the fish might disappear

The commercial harvest of the fish has declined nearly 90 percent since 1999

#GreatLakes

www.wpr.org/news/decline...

24.07.2025 12:15 πŸ‘ 59 πŸ” 27 πŸ’¬ 5 πŸ“Œ 1

Are you unfamiliar with Toronto sportsfans?

21.07.2025 18:46 πŸ‘ 0 πŸ” 0 πŸ’¬ 1 πŸ“Œ 0

Another paper out! Co production of research with academia, government, NGOs, and other conservation groups!

21.07.2025 15:39 πŸ‘ 7 πŸ” 4 πŸ’¬ 0 πŸ“Œ 0
Graphic of shaking hands above quotation reading "embracing co-production is increasingly regarded as the single-most important approach for generating actionable science to inform conservation".

Graphic of shaking hands above quotation reading "embracing co-production is increasingly regarded as the single-most important approach for generating actionable science to inform conservation".

Translating #Conservation research into meaningful action requires collaboration between multiple stakeholders 🀝.

This #Perspective includes case studies & guidance for co-produced research. #CoProduction

With emphasis on generating effective & inclusive outcomes.

➑️ doi.org/10.1093/conp... 🌎
🧡

21.07.2025 11:34 πŸ‘ 6 πŸ” 5 πŸ’¬ 1 πŸ“Œ 1

Would solar dimming also reduce rate of oxygen production from marine algae…though, the pH would mess a lot with that, too. Isn’t the Anthropocene grand!

19.07.2025 03:10 πŸ‘ 0 πŸ” 0 πŸ’¬ 1 πŸ“Œ 0

Every year I fund a small award for science graduates at my very small town high school. It honours the person who made me love the sciences and particularly biology. She was a fantastic teacher just by being human and talking to us country bumpkins like we mattered and could be something more

18.07.2025 18:11 πŸ‘ 4 πŸ” 0 πŸ’¬ 0 πŸ“Œ 0

A novel approach to fish aging in the Anthropocene.

18.07.2025 18:06 πŸ‘ 1 πŸ” 0 πŸ’¬ 1 πŸ“Œ 0
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Opinion: With the school year over, remembering teachers Over the past few years, there has been considerable debate in these pages about how we should grade students. Yet there has been little debate on what those students are (or should be) learning, or w...

With the school year over, remembering teachers
www.winnipegfreepress.com/opinion/anal...

18.07.2025 18:03 πŸ‘ 3 πŸ” 1 πŸ’¬ 1 πŸ“Œ 0