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Reposted by Robin Leeuwis

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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Reposted by Robin Leeuwis

Lorena Silva @lorenasilvag.bsky.social · Jun 16

Happy to share my first thesis chapter from my PhD at NTNU, published in Journal of Thermal Bio! “No Oxygen limitation of Upper Thermal Tolerance in Zebrafish Regardless of Acclimation Temperature” 🔓🐟🌡️

@jutfelt.bsky.social @annahandreassen.bsky.social @rasmusern.bsky.social

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Robin Leeuwis @leeuwisrobin.bsky.social · Jun 29

I got to work with a fantastic team of scientists as well, including @rachaelmorgan.bsky.social,
@annahandreassen.bsky.social, Lorena Silva-Garay, Zara-Louise Cowan, @erasheim.bsky.social,
@jaydebon.bsky.social, Sandra Binning, Graham Raby and @jutfelt.bsky.social 💫

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Robin Leeuwis @leeuwisrobin.bsky.social · Jun 29

This research was done at the @kristinebergcenter.bsky.social in Sweden 🌊🪸🦐 I also received support from @sebiology.bsky.social y.bsky.social when writing up the paper🙏

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Robin Leeuwis @leeuwisrobin.bsky.social · Jun 29

All in all, I think this is a neat study about 'how fish work' with some cool results 🙂🔎 Don't hesitate to let us know if you have any questions!

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Robin Leeuwis @leeuwisrobin.bsky.social · Jun 29

Meanwhile, skin exposures to cold or warm temperatures did not seem to trigger acclimation. Specifically, we briefly and repeatedly dipped fish in a cold or warm water bath 🛁, and there were no clear signs of an acclimation response afterwards.

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Robin Leeuwis @leeuwisrobin.bsky.social · Jun 29

We found that circulating hormones likely control the process of adjusting the metabolism to the cold ☝ We showed this by collecting plasma from cold acclimated donors, injecting it into recipients reared at a regular temperature 💉, whose metabolism then appeared to become cold acclimated 🤯

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Robin Leeuwis @leeuwisrobin.bsky.social · Jun 29

Two fish species were tested in our experiments, the Atlantic cod and goldsinny wrasse. Both species inhabit large areas of the Atlantic. They are important for healthy marine ecosystems, fisheries, and aquaculture 🎣

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Robin Leeuwis @leeuwisrobin.bsky.social · Jun 29

New research paper out about how fishes acclimate to different water temperatures! 🐟 It's in @conphysjournal.bsky.social and OA! 🔓 doi.org/10.1093/conp... We looked at the role of blood plasma factors and skin temperature sensation in this study 🩸 ♨️ Recap in the threat below for those interested 😊

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Robin Leeuwis @leeuwisrobin.bsky.social · Jun 29

I got to work with a fantastic team of scientists as well, including @rachaelmorgan.bsky.social, @annahandreassen.bsky.social, Lorena Silva-Garay, Zara-Louise Cowan, @erasheim.bsky.social, @jaydebon.bsky.social, Sandra Binning, Graham Raby and @jutfelt.bsky.social 💫

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Robin Leeuwis @leeuwisrobin.bsky.social · Jun 29

This research was done at the @kristinebergcenter.bsky.social in Sweden 🌊🪸🦐 I also received support from @sebiology.bsky.social when writing up the paper🙏

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Robin Leeuwis @leeuwisrobin.bsky.social · Jun 29

All in all, I think this is a really neat study about 'how do fish work' with some cool results 🙂🔎 Don't hesitate to let us know if you have any questions about them!

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Robin Leeuwis @leeuwisrobin.bsky.social · Jun 29

Meanwhile, skin exposures to cold or warm temperatures did not seem to trigger acclimation. Specifically, we briefly and repeatedly dipped fish in a cold or warm water bath 🛁, and there were no clear signs of an acclimation response afterwards.

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Robin Leeuwis @leeuwisrobin.bsky.social · Jun 29

We found that circulating hormones likely control the process of adjusting the metabolism to the cold ☝ We showed this by collecting plasma from cold acclimated donors, injecting it into recipients reared at a regular temperature 💉, whose metabolism then appeared to become cold acclimated 🤯

1

Robin Leeuwis @leeuwisrobin.bsky.social · Jun 29

Two fish species were tested in our experiments, the Atlantic cod and goldsinny wrasse. Both species inhabit large areas of the Atlantic. They are important for healthy marine ecosystems, fisheries, and aquaculture 🎣

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Reposted by Robin Leeuwis

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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Robin Leeuwis @leeuwisrobin.bsky.social · May 22

Shout out to the other team members that are crucial for this ongoing research: Lorena Silva-Garay, Henning Kristiansen, Zara Cowan, Moa Metz, Christophe Pélabon, and @jutfelt.bsky.social 💪

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Reposted by Robin Leeuwis

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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Robin Leeuwis @leeuwisrobin.bsky.social · May 22

Thank you so much @sebiology.bsky.social and @avianevans.bsky.social for featuring our artificial selection research in zebrafish in the Spring society magazine! 📰🙏🐟 ☺️ The whole issue is a great read, filled with fantastic news from the experimental biology community👌🔬🌱🌍

SEBiology @sebiology.bsky.social · May 22

📢 The Spring 2025 issue of SEB Magazine is now available!

Explore how experimental biology is helping tackle global challenges 🌍

✨ Featuring conference highlights, tools of tomorrow, inspiring interviews & more!

🔗 Read now:
www.sebiology.org/resource/the...

The Spring 2025 issue of SEB Magazine is now available on demand!

Explore the latest in biology with SEB Magazine Winter 2025, featuring groundbreaking insights on protein expression, epigenetics, and gene regulation.

www.sebiology.org

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Tamzin Blewett @drtblew.bsky.social · Apr 25

Lab animals deserve enriching environments, but what if our efforts to help unintentionally cause harm? In our ES&T perspective, we explore how leaching plastics and plastic additives may impact fish health, and your experiments...

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Reposted by Robin Leeuwis

CORE•COEUR #ResearchersVote #VotonsRecherche 🗳️ @core-coeur.bsky.social · Mar 23

On y va! 🇨🇦 Let's go!

Researchers are ready for #Elxn45! We'll vote for candidates who see that #TeamCanada needs a robust research sector to thrive.🗳️Les chercheur.e.s sont prêt.e.s à voter pour la recherche et ses atouts pour #ÉquipeCanada!

Info: core-coeur.ca

#VotonsRecherche #ResearchersVote

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Reposted by Robin Leeuwis

Zebrafish Rock! @zebrafishrock.bsky.social · Apr 15

Super helpful thread by @burgesslab.bsky.social, for those interested 🐟

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Zebrafish Rock! @zebrafishrock.bsky.social · Apr 9

@varshneylab.social‬ @sheng-jia.bsky.social (gRNA selection/ Phenotypic penetrance/ Neurodevelopmental disorders)
https://doi.org/10.1093/nar/gkaf180

‪@jutfelt.bsky.social Version 2 Husmorph (Image Analysis/ Landmarking)
https://github.com/HenHus/Husmorph (32/34)

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Reposted by Robin Leeuwis

Albrecht Schulte-Hostedde @albrechts-h.bsky.social · Apr 10

this is VERY dangerous.

Samantha Brennan @samanthabrennan.bsky.social · Apr 10

In Canadian election, top Conservative candidate vows to end ’woke ideology’ in science funding

www.science.org/content/arti...

In Canadian election, top Conservative candidate vows to end ’woke ideology’ in science funding

Pierre Poilievre’s Conservative Party is trying to topple Liberal government in 28 April election

www.science.org

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Aerin Jacob, PhD @aerinj.bsky.social · Apr 10

Glad to see the Canadian Society for Ecology & Evolution (@csee-scee.bsky.social) speak up in support of science!

csee-scee.ca/current-bull...

This letter focuses on attacks on scientific integrity & science in the U.S.A. Similar things happened and still happen elsewhere.

Speak up. Stand up.

CSEE Current Bulletin

csee-scee.ca

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