Robin Leeuwis

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

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!

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

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 💫

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🙏

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!

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.

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 🤯

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 🎣

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 😊

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 💫

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

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!

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.

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 🤯

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 🎣

🚨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...

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 💪

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...
🧪🐟🦑

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👌🔬🌱🌍

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...

A rectangular image with navy blue background and bilingual text in all caps coloured pale blue, white, yellow, which reads: Researchers in Canada vote. Les chercheur.e.s votent. A white footer includes the logo for CORE-COEUR Coalition for Research Excellence, Coalition pour l'excellence en recherche, a multicoloured mosaic with a partial orange heart and a partial blue heart. Une image rectangulaire avec un fond bleu marine et un texte en majuscules coloré en bleu pâle, blanc, jaune, qui se lit comme suit : Researchers in Canada vote. Les chercheur.e.s votent. Un pied de page blanc comprend le logo de CORE-COEUR Coalition for Research Excellence, Coalition pour l'excellence en recherche, une mosaïque multicolore avec un cœur partiellement orange et un cœur partiellement bleu.

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

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

@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)

this is VERY dangerous.

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.

⭐️Meet Wilco Verberk!⭐️

🎙️Learn more about his work in our newest episode - out now!

#science #scicomm #sciencecommunication #biology

Version 2 of our machine learning morphometric app is now out! Go try it on your organisms. github.com/HenHus/Husmo...

If you would like to give us feedback on the app or preprint, then we would love to hear from you! 📧

We hope that the HusMorph app will make machine learning and automated landmarking accessible to all biologists. You don't need any background in coding to get started! We tested the app on photos of fishes, but it should perform well on other organisms too 🐜🐸🐦🦀🐌

This was a really fun interdisciplinairy project to work on. Machine learning is such a powerful and helpful tool when working with large image datasets! Henning is also a very talented computer science student 👨‍💻👌