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Reposted by Erin Stewart

Fredrik Jutfelt 🐠 @jutfelt.bsky.social · Jul 7

The FINclub 2025 team (most of us)!

Now off for the SEB conference @sebiology.bsky.social 🧪🐟

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Bradley E. Howell @bradhowell.bsky.social · Jul 10

Some great talks on fish metabolism, thermal tolerance, and bioenergetics by folks from @trentuniversity.bsky.social at this year’s #SEBconference in Antwerp, Belgium.

@sebiology.bsky.social
@erinmcstewart.bsky.social
@jaydebon.bsky.social
@chris-on-fish.bsky.social

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Veronica Groves (she/her) @veronicagroves.bsky.social · Jul 9

Visiting the nurse sharks at the Antwerp Zoo during #SEB2025 was a definite conference highlight!

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Beth Hoots @whatahoot.bsky.social · Jul 8

A terrific afternoon for fish biology here at #SEBconference ❤️🐟 Great talks by @leeuwisrobin.bsky.social, Moa Metz, and @erinmcstewart.bsky.social about different ways that fish respond to climate warming!

A scientist presents her take-away slide on a large dark stage. It reads: Take-away
• Zebrafish can evolve improved growth at warmer temperatures
• Thermal performance curves can undergo a left or right shift
• Ectothermic vertebrates may adapt to global warming by enhancing performance
• Role of selection in shaping thermal resilence

A scientist presents her title slide on a large stage, it features a beautiful picture of a brook trout.

A scientist presents the methods of her research on a large screen

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Fredrik Jutfelt 🐠 @jutfelt.bsky.social · Jun 28

FINclub research trip going well! 32 people, dozens of fish and invert species, 16 experiments, two dogs and lots of fun. Some photos in thread.
🧪🐟🦑

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Jeremy De Bonville @jaydebon.bsky.social · May 16

🚨Preprint alert!🚨

We found that relevant levels of aquatic oxygen supersaturation do not always offer protective benefits to aquatic ectotherms during acute warming. 🌡️

Big collaborative project with A LOT of CTmax trials!!!

ecoevorxiv.org/repository/v...

Oxygen supersaturation has negligible effects on warming tolerance in aquatic ectotherms

ecoevorxiv.org

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Fredrik Jutfelt 🐠 @jutfelt.bsky.social · May 14

How do fish evolve to tolerate higher temperatures, and are there trade-offs? We explore these questions in our new paper
@natclimate.nature.com led by Anna Andreassen
@annahandreassen.bsky.social

www.nature.com/articles/s41...
🧪🐟🦑

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Andrea Fuller @andreafuller.bsky.social · Apr 9

Really enjoying the Conservation Physiology in Action articles written by early career researchers. This one by Zoe Storm from JCU, commenting on the fine work by @erinmcstewart.bsky.social and team.

Conservation Physiology @conphysjournal.bsky.social · Apr 9

Home is where the heat is (for brook trout that is)

Intrigued? Then check out this latest #ConPhys in Action piece, explaining the importance of local conditions to 🐟 temperature tolerance, and therefore for #Conservation planning.

Comments on Stewart et al (links in 🧵⬇️ )

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Erin Stewart @erinmcstewart.bsky.social · Apr 9

Thanks @zoe-storm.bsky.social for writing a great piece on our recent brook trout work! 🔥 ❄️ 🐟

Links to her ConsPhys in Action article & our research paper below ⬇️

Conservation Physiology @conphysjournal.bsky.social · Apr 9

Home is where the heat is (for brook trout that is)

Intrigued? Then check out this latest #ConPhys in Action piece, explaining the importance of local conditions to 🐟 temperature tolerance, and therefore for #Conservation planning.

Comments on Stewart et al (links in 🧵⬇️ )

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Reposted by Erin Stewart

Laura Haniford @laurahaniford.bsky.social · Mar 24

Congrats to Graham Raby for winning the outstanding mentor award at AFS OC this weekend! Turns out we all had lots to say about what we think of his leadership skills ✨🥳

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Mitchell Shorgan @mitchellshorgan.bsky.social · Mar 7

What are the effects of tagging on fishes? 🐟

Our review + meta-analysis explores intracoelomic tagging effects in fishes. We summarize the existing literature and examine the 2% rule using evidence from a broad representation of all published studies.

Preprint link below! 🧵

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Veronica Groves (she/her) @veronicagroves.bsky.social · Mar 5

Going to @sebiology.bsky.social 2025? Consider submitting an abstract to our session on "Shared challenges & diverse approaches to physiology in conservation" open to ~all taxa~ 🐟🐻🦋🌿 Organized by Drs. Britney Firth, Sean Tomlinson, Zjef Pereboom & non-Dr me! #SEB2025

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Jessica Reid 🍂 @j-reid.bsky.social · Feb 3

Are you headed to this month’s annual Society of Canadian Aquatic Sciences conference in Hamilton? Have students or are yourself new to the world of scientific publishing?

Grab your lunch and join me to chat all about the process, tips and tricks ✍️

#SCAS2025 @cdnsciencepub.bsky.social

Workshop info card:
Demystifying the publication process
On Feb 21 from 12:55-1:40 pm
In Wentworth A at the SCAS conference in Hamilton

Info displayed over an image of two whales swimming underwater

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Jeremy De Bonville @jaydebon.bsky.social · Feb 3

Are you new to CTmax tests? Are you experienced, but unsure on what to report in your Methods section? Do you think there any other factors at play? 🤔

Then this practical guide is for you! 😎

Glad I could be a part of this effort which could help with studies comparisons! 🤩

Measuring critical thermal maximum in aquatic ectotherms: a practical guide

ecoevorxiv.org

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Reposted by Erin Stewart

Fredrik Jutfelt 🐠 @jutfelt.bsky.social · Feb 3

In this new preprint on ecoevorxiv we provide a detailed, practical guide to measuring CTmax and CTmin in aquatic animals.

Amazing team of authors! 🧪🐟🦑

Raby
@rachaelmorgan.bsky.social
Andreassen
@erinmcstewart.bsky.social
@jaydebon.bsky.social

ecoevorxiv.org/repository/v...

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Erin Stewart @erinmcstewart.bsky.social · Jan 10

Thank you!

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Reposted by Erin Stewart

Jacob Bowman @jacobbowman.bsky.social · Jan 9

It was a pleasure to be Erin's research assistant on this project in 2021! Here are some of the amazing and variable streams we visited during our fieldwork.

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Reposted by Erin Stewart

Trent Centre for Communicating Conservation @trentconservation.bsky.social · Jan 9

We're back in February for more conservation science! Join Dr. Mark Ridgway for the scoop on Algonquin Park lake fish. There's more going on beneath the waters than we thought!

A poster for our pub talk Islands of Water in a Sea of Land: Newly Discovered Species Diversity of Fish in Algonquin Park. Feb 11, 7:30 pm, the Publican. Dr. Mark Ridgway is pictured holding up a 2 foot fish with blue lakewater stretching out in the background

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Erin Stewart @erinmcstewart.bsky.social · Jan 8

Wild brook trout populations varied meaningfully in their CTmax and vulnerability; they won’t be able to cope with future warming and heat waves through acclimation alone. These results can help with prioritizing conservation and management actions at local scales.

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Erin Stewart @erinmcstewart.bsky.social · Jan 8

Populations in southern Ontario watersheds with more urban 🏙️ and agricultural 🌾 development were the most vulnerable to heat waves ☀️

Populations in less developed areas and with more groundwater influence ❄️ had the highest TSMs.

🧵 4/5

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Erin Stewart @erinmcstewart.bsky.social · Jan 8

We found that stream temp (acclimation) 🌡️ and other site-level effects accounted for most of the variation among populations. TSMs varied substantially (15C!), reflective of the variation in site thermal regimes.

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Erin Stewart @erinmcstewart.bsky.social · Jan 8

We measured field CTmax of 20 wild brook trout populations across Ontario. We paired this with stream temp data & other site characteristics to examine thermal vulnerability and calculate thermal safety margins (TSMs) for each population.

🧵 2/5

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Erin Stewart @erinmcstewart.bsky.social · Jan 8

📣 Just published in @conphysjournal.bsky.social with @jacobbowman.bsky.social, Chris Wilson, and Graham Raby

How much does upper thermal tolerance vary among wild populations of brook trout? What drives this variation? 🌡️

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doi.org/10.1093/conp...

Local conditions drive interpopulation variation in field-based critical thermal maximum of brook trout

Abstract. Individual- and population-level responses to thermal change will be pivotal for species’ resilience and adaptive responses to climate change. Th

doi.org

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