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Robin Leeuwis

@leeuwisrobin.bsky.social

Animal physiology postdoc @NTNU interested in 🐟 and global change. Passionate about science and education, also Dutch and 🏳️‍🌈 (she/her).

26 Posts271 Follower513 Folgt
Fredrik Jutfelt 🐠@jutfelt.bsky.social · 12mo ago

Excellent article on the oxygen limitation during warming discussions, and our recent paper on the topic. By @dianasmadeira.bsky.social 🐟🧪

PLOS Biology@plosbiology.org · 12mo ago

Oxygen limitation is considered a key mechanism of #ThermalTolerance. @dianasmadeira.bsky.social explores how a @plosbiology.org study challenges this idea, showing minimal protective effects of O2 supersaturation in heat-stressed #aquatic #ectotherms 🧪 Paper: plos.io/43hzMQa Primer: plos.io/3XeUtbS

The effects of temperature on organismal performance are depicted using thermal performance curves, where performance is greatest at the optimal temperature and starts to decrease toward cooler or warmer temperatures, reflecting the thermal window (tolerable range of temperatures) of the species. Briefly, the Oxygen and Capacity Limited Thermal Tolerance hypothesis proposes that oxygen limitation explains the performance decline at high temperatures and sets the first boundary for thermal limits across ectotherms. This is due to a mismatch between the oxygen demand of the organism and the capacity of the cardiorespiratory system to supply oxygen to tissues when the organism is under warming. This concept is central to predict species responses to warming. As oxygen supersaturation in water has been shown to alleviate oxygen supply limitations by increasing maximum rates of oxygen transport in blood, Raby and colleagues (2025) tested the effects of oxygen supersaturation on thermal tolerance across 14 aquatic species. The authors found that it had negligible effects on upper thermal limits, challenging the oxygen limitation hypothesis as a universal mechanism underpinning thermal tolerance of aquatic ectotherms. The authors highlight that oxygen supersaturation in water, a naturally occurring phenomenon in shallow waters, may not protect aquatic species from the effects of extreme heat.
Fredrik Jutfelt 🐠@jutfelt.bsky.social · 12mo ago

Oxygen supersaturation has been reported to protect aquatic animals from heat waves. We tested this in a large collaborative experiment on many species of fish and crustaceans. Our new paper in @plosbiology.org shows that the effect of hyperoxia on thermal tolerance is negligible. Unfortunately.

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Robin Leeuwis@leeuwisrobin.bsky.social · last yr.

Tired of manually landmarking hundreds of images? 📍🖼️😩 Our lab developed HusMorph, a free and open-source tool that automates morphometric landmarking using #MachineLearning — no coding required. Simply train the model on your images, and it quickly places landmarks with human-level accuracy. #AI

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Fredrik Jutfelt 🐠@jutfelt.bsky.social · last yr.

Check out our new methods paper for automated length and body shape measurements in animals!

Robin Leeuwis@leeuwisrobin.bsky.social · last yr.

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 · last yr.

📢 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...

Zebrafish Rock! 🎃@zebrafishrock.bsky.social · 2y ago

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

a rainbow colored shooting star with the words the mo you know above it

ALT: a rainbow colored shooting star with the words the mo you know above it

media.tenor.com

Shawn Burgess @burgesslab.bsky.social · 2y ago

It has been a while since I advertised some of the tools we have released to help researchers analyze the zebrafish genome. So a brief Bluetorial on our zebrafish genomics UCSC public data hub and the bigger effort led by @ferencmueller.bsky.social to create a zebrafish ENCODE project (Danio-CODE):

Jeremy De Bonville@jaydebon.bsky.social · 2y ago

Our new paper on fish dynamics of thermal tolerance plasticity is finally out in Journal of Thermal Biology! This was an amazing collaboration with great researchers across the World! www.sciencedirect.com/science/arti...

Dynamics of thermal tolerance plasticity across fish species and life stages

Climate warming with associated heat waves presents a concerning challenge for ectotherms such as fishes. During heatwaves, the ability to rapidly acc…

sciencedirect.com

David Shiffman, Ph.D. 🦈@whysharksmatter.bsky.social · 2y ago

Always an interesting read 🧪🌎 www.cell.com/trends/ecolo...

A horizon scan of biological conservation issues for 2025

We discuss the outcomes of our 16th horizon scan of issues that are novel or represent a considerable step-change and have the potential to substantially affect conservation of biological diversity in the coming decade. From an initial 96 topics, our international panel of 32 scientists and practitioners prioritised 15 issues. Technological advances are prominent, including metal and non-metal organic frameworks, deriving rare earth elements from macroalgae, synthetic gene drives in plants, and low-emission cement. We include new insights into accelerated impacts of changes to Antarctic ice masses and air and water quality. We hope that anticipating and mitigating negative impacts, and making best use of new opportunities related to these issues, will contribute to better outcomes for biological diversity.

cell.com

Robin Leeuwis@leeuwisrobin.bsky.social · 2y ago

Hi Bluesky community! 👋 I'm Robin and new here. I'm a scientist who studies mostly fish, and based on scholargoggler.com I'm especially a fan of sablefish 🐟 But these days I also do a lot of research with zebrafish! 🦓 I'm fascinated with how the environment shapes their physiology and evolution.

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