Baby shark season is nearly here 🌊🦈
Since 2013 Physioshark has built a 12-year dataset (~1800 pups). Support climate change research on reef shark nurseries, student training, outreach, & advocacy. Tees, singlets, hoodies. 100% profits to the lab.
Shop: shorturl.at/SKFfX
#Physioshark #SharkScience

Just out! @conphysjournal.bsky.social led by new PhD Dr José Trujillo w/ @physioshark - warmer waters (thermal sweet-spot) increased acceleration, agility, & response time in newborn blacktip reef sharks 🦈
📄 academic.oup.com/conphys/arti...
@universityofotago.bsky.social
@jcuofficial.bsky.social

The Great Barrier Reef is a global icon & national treasure, but it's also a frontline casualty of climate change. What happens to the Reef is a warning signal for marine ecosystems globally. We still have time — but only if we act now.

@jcuofficial.bsky.social
📸 @physiologyfish.bsky.social

New paper in Ecology & Evolution: analysed 187 species of rays & skates to explore patterns of sexual size dimorphism. Turns out SSD in rays doesn’t follow the same rules as in sharks.

❓Differences in reproductive strategies❓

🔗 doi.org/10.1002/ece3...

#SharkScience #Evolution #MarineBiology

New @jcuofficial.bsky.social study — tonic immobility in sharks may be ancient evolutionary baggage — not a survival trick.
📄 doi.org/10.1007/s111...
Some sharks freeze when flipped over. Does it help them survive? Probably not. Maybe leftover from their ancient ancestors. #SharkScience #Evolution

New paper out today! 🦈
We tested whether blacktip reef shark dorsal fins are reliable for photo ID – they are!
✅ Stable over time
✅ Unique among individuals
📍Long-term dataset from French Polynesia
Led by Physioshark
🔗 doi.org/10.1111/jfb....
#SharkScience #MarineBiology
@jcuofficial.bsky.social

Sharks just proved the 2/3 scaling law. 🦈📏 Using 3D modelling of 54 species, we found sharks follow the expected surface area-to-volume relationship almost perfectly — validating a key physiological theory.
📄 doi.org/10.1098/rsos...

📸 Rachel Moore
📍 @jcuofficial.bsky.social
#SharkScience #shark

New paper in Nature Ocean Sustainability! 🦈Sharks are among the most threatened vertebrates – our study maps research priorities + gaps to guide conservation action. Let’s do better for sharks.
🔗📄https://www.nature.com/articles/s44183-025-00131-8
#Sharks #Conservation

New from the RummerLab at @jcuofficial! Our latest @JEBiology paper explores how physiology 🧬🧪🔬👩🏻‍🔬 can drive smarter, climate-ready conservation. 🍃🌊Bridging lab science + real-world action! 🌏

🔗📄Read it here: journals.biologists.com/jeb/article/...

#conservation
#climatecrisis
#Ecophysiology

🦈 New paper in Ecology & Evolution 📑 via our Physioshark research (ongoing since 2013 in French Polynesia🌺)!

Fisheries catch data can be used to unravel elasmobranch aggregation dynamics, social structures, & group behaviours. Case study: newborn blacktip reef sharks.

🔗 doi.org/10.1002/ece3...

One of my amazing PhD students (Joel Gayford) - grateful we can have a week of brainstorming with his secondary supervisor - @duncanirschick.bsky.social - nature therapy for the win!

We’re super lucky to have Prof @sjcfishy.bsky.social speaking with our JCU evidence & controversy in marine science class re: catch-and-release fishing today!

Huge success… seminar and interactive workshop at JCU, full house for both!!!

New potential shark nursery - part of @physioshark research, ongoing annually since 2013. How many baby blacktip reef sharks can you count?🦈
Protecting them means safeguarding the future of these incredible predators & the reefs they support! 🩵💚💙 🎞️ by @orianeservant www.instagram.com/reel/DGPhmC2...

Today at JCU – Prof @euanritchie.bsky.social spoke w/ our “Evidence & Controversy in Marine Science“ MB5350 class today, #climatecrisis #biodiversitycrisis & reminded us: “From great challenges come great opportunities”

What’s your take? One of our most provocative topics in “evidence & controversy in marine science” - shark mitigation issues in Australia and worldwide - expertly presented by @sawsharkman.bsky.social 

Thank you Dr Raoult! 🫶🏼🦈

For the 3rd time I’m teaching 👩🏻‍🏫 my “Evidence & Controversy in Marine Science” MB5350 🦀🐡 class - it’s core (required) for our 🦭🦑 master of marine biology 🦈🪸 (MMB) students 🌊 at JCU. We have 110 students from 19+ countries & this is what they think is crucial today. Want to help? DM me! 🐠🪼

Do you like sharks? 🦈 They can range in size from 🤏🏼 20cm to 📏20m & all kinds of shapes! Join us for Joel Gayford’s PhD confirmation seminar at JCU or DM for zoom link. “From ocean miniatures to ocean giants: the evolution of body size & body form in Chondrichthyes”

#sharks #evolution #morphology

Researching climate change stress & adaptation in coral reef fishes & sharks. Passionate about #climateaction & advocating for equity, inclusion, & diversity in STEM. Committed to improving science communication & making science more accessible to all. #STEMdiversity #ScienceForAll #physioshark