#exocean advent calendar day 24! Today we thought it was a good fit to show an image/talk about “conception”… One of the thing we (try to) do best at ExoCean is planktonic foraminifera reproduction. Here two immaculate mummies… 😏 We would like to wish you all a beautiful Christmas Eve!

#exoCeanadvent Day 23: at exoCean we also look at some old questions: in the late 1800s, during the HMS Challenger expedition, they discovered that you can have a constant rain of shells from above, and still end up with a seafloor that looks like the carbonate budget never existed. Why? Pressure. 🌊

#exoCeanadvent Day 22: Winding down for the holidays often means one thing... more mass spectrometry time is available! With our friends in @cerege.bsky.social's #ENVITOP facility, we're making use! Thanks to their equipment we're working on measuring elemental compositions down to the nano-gramme!

#exocean advent calendar Day 21! The strongest link between all of us is our love for the ocean. Leaving Marseille with a magnificent sunrise reminds us each time we go out how lucky we are to do what we love for a living! We already have our ship time for the first 6 months of 2026 - exciting!

#exoCeanadvent Day 18: looking for a good read waiting for Santa? 🌊 Try marine carbon removal: @sulpis.bsky.social co-chaired the working group behind the @emarineboard.bsky.social MRV brief, because “trust me bro” isn’t a monitoring protocol. Emissions cuts first; then *maybe* carbon removal.

#exoCeanadvent Day 19: Friday edition: today’s post is about the peacocks at CEREGE, because it’s Friday and our brains are in weekend mode. They wander around like they own the campus, scream for no reason, and block paths with absolute confidence. Honestly, goals. 🦚

Read the European Marine Board report here: 📘👀 www.marineboard.eu/publications...

And...you. 🫵🏼! If you want to come work with us then get in touch. Message us here, or head to the website in our profile details. 'Tis the season*. *Of @cnrs.fr applications, good luck to everyone who is applying!

#exoCeanadvent Day 20: it's wishing time... Whether you believe in Santa (the French singer 🎤), FC, or as I recently heard, Professor Xmas... We can all hope for some things in the holiday season... At @exoceanlab.bsky.social we would like (in no particular order):

#exoCeanadvent Day 16: We're getting closer to the holidays, but we don't stop yet. @erc.europa.eu postdoc @jysuarezibarra.bsky.social was out today presenting his work @maxplanck.de in Mainz. @soniachaabane.bsky.social is also visiting to chat with colleagues.

#exoCeanadvent Day 12: End-of-year celebration - raclette edition. On the agenda for this team meeting: cheese, cheese, cheese, goals for next year: even more cheese. We’ve officially reached our melting point. 🧀

The results did not reveal significant trend among the treatments, suggesting that under the tested conditions, the addition of olivine did not appear to affect foraminifera biology. Good news! Also, if anyone needs water filtration in the field with no electricity, Maxime is your guy.

#exoCeanadvent Day 9: Meet Maxime (again). At @exoceanlab.bsky.social and @climatecerege.bsky.social Maxime has been conducting several experiments focusing on the culture of marine organisms. One project involved culturing foraminifera in the presence of olivine (Mg,Fe)2SiO4, an igneous mineral.

#exoCeanadvent Day 10: As winter creeps into Provence we remember warmer days from our fieldwork in Bermuda. We stayed with the lovely folk at @biosstation.bsky.social, like @blancobercial.bsky.social who helped us to look for different foraminifera to catch, than our usual Mediterranean stuff.

#exoCeanadvent Day 11: Science makes you do strange things. Meet @astridhylen.bsky.social, a postdoc working with carbonate dissolution in coastal sediments. She recently found herself in the middle of a salt marsh, stirring one of the ponds with a (clean) toilet brush taped to a curtain rod.

#exoCeanadvent Day 8: Meet Katoo Declerk's Erasmus+ work. During her internship Katoo is investigating recently dead foraminifera (handily available in our lab!) Forams typically sink to the ocean floor soon after death, but partial or total dissolution can occur before getting there.

Once finished, these measurements will be combined with CT scans, and modelling to work out exactly what is happening in these first stages of sediment formation, or indeed alkalinity recycling in the water column. Stay tuned for results later in Katoo's project!

#exocean advent calendar Day 7! We are lucky to be based in a pine forest, in Southern France, which means loads of possible walks to discuss science in a wonderful environment. We also like to run together - as we did Friday to finish the week!

#exoCeanadvent Day 4: At exoCean we also investigate what happens to calcifiers who mysteriously die (answer: a lot happens). For that we must go at sea and collect evidence, just like CSI but with more seasickness pills, same sunglasses.

🌊 Expansion of Antarctic Bottom Water driven by Antarctic warming in the last deglaciation www.nature.com/articles/s41...

new paper led by Andressa Nauter-Alves assessing controls on trace elements (Mg, Sr, B, Li /Ca) in multiple species of benthic foraminifera using a large compilation of coretop samples (>1500 sites). dx.doi.org/10.1029/2025...

🔐 Applications de rencontre, rendez-vous médical en ligne… La gratuité repose souvent sur la collecte et l'exploitation de nos données personnelles. Comment garantir leur sécurité ? C’est l’enjeu des travaux de Geoffroy Couteau, cryptographe CNRS au sein de @irif-paris.bsky.social.

🛎️ 🛎️ New(ish) paper alert!! 🛎️ 🛎️ After 9 years, I have finally managed to publish the results from my MSc thesis during my time at the University of Birmingham on the MSc in Applied and Petroleum Micropalaeontology course! jm.copernicus.org/articles/44/...

Day 2 of #exoCeanadvent: Come with us to sea (you can also be a land based participant). As an 'inland' ocean lab, we don't quite have the sea on our doorstep, but that doesn't mean we can't bring it to us! We're based just 30–60 minutes from boats out of Marseille and Toulon.

How could we forget, LAB-rador mascot (not really, but American Labpard doesn't work so well), Jean-Milou [somehow not on @bsky.app yet]. Anglophones you can call him John-Milo.

#exoCeanadvent Day 3: An important part of creating a lab is to be able to plan things in miniature, for this we use #Lego versions of our team, they tend to be a bit cheaper for testing. You may spot some of @chalkyoceans.bsky.social's not so secret wishlist in the background (#nu-instruments).

And yes, you'll be added too if you come to work in our lab, @cerege.bsky.social! @soniachaabane.bsky.social, @jysuarezibarra.bsky.social, and others have their figures already. Find details about the full size versions of all these folk now (or soon) on our website. exocean.academicwebsite.com

@juliemeilland.bsky.social won this year’s Alan Higgins Award! We cite: « her pioneering work on planktonic foraminifera - including the first multi-generational lab cultures - has transformed how we study and apply these vital microfossils. » Yay!

Congrats to @juliemeilland.bsky.social, who just got awarded the prestigious Alan Higgins awards from the @micropalaeosoc.bsky.social !

I was awarded the Alan Higgins Award by @micropalaeosoc.bsky.social for my work on planktonic foraminifera reproduction and culture. I feel very honored and can only thank all the great colleagues who supported me along the way in Norway, Ireland, the UK, Germany and France!

My co-authored marine GDGT « cookbook » review paper led by Peter Bijl 👨‍🔬 and @kasiasliwinska.bsky.social 👩‍🔬 is now published in @egubg.bsky.social! doi.org/10.5194/bg-2... Again, I am so happy to be the @cerege.bsky.social @climatecerege.bsky.social expert on #GDGTs! @egu.eu 🧪 ⚒️ 🌊 #PaleoSky (1/3)

The Laschamp geomagnetic excursion recorded in marine sediments from the western South Atlantic 🌊 New paper alert👇 doi.org/10.1016/j.qu...

Interested in corals, dispersal, and diversification dynamics? 🪸 We're offering a PhD project on how the Tethys closure shaped global marine biodiversity — supervised by me, Bridget Wade, Nadia Santodomingo, & Francesca Bosellini. 🗓️ Apply by 17th December 2025 www.trees-dla.ac.uk/projects/how...

@ird-fr.bsky.social @climatecerege.bsky.social @cerege.bsky.social ❤️

The worst possible scenario for Jamaica came true: climate-fueled hurricane #Melissa just made landfall at its strongest. Maximum sustained winds of 295 km/h (185 mph) and an estimated minimum central pressure of 892 mb (26.34 inches). Devastating.

postdoc position within “Green2Ice”, on the evolution of the Greenland ice sheet. Closing date is 25th November, 2025. Start date is 1st February 2026 jobportal.ku.dk/videnskabeli...

two more open positions (Northumbria this time) a three-year position in machine learning emulators of ice-ocean processes, and a Postdoctoral Researcher for a three-year position in numerical modelling of the world’s ice sheets. Closing date: 30th Nov 2025 work4.northumbria.ac.uk#en/sites/CX_...

Kind of a dream job...

A study published in Science highlights the crucial role of calcifying plankton in regulating our climate. With contributions from CEREGE researchers @soniachaabane.bsky.social (@ird-fr.bsky.social)and Thibault de Garidel-Thoron (@cnrs.fr) Learn more: www.cerege.fr/en/calcifyin...

We're hiring! I'm recruiting a Postdoctoral Research Associate in climate & paleoclimate modeling of the tropical Americas. Come obsess over the tropical rain belt with me! :) Please share w/folks who may be interested. Ad here: wustl.wd1.myworkdayjobs.com/en-US/Extern...

Seeking a three year postdoc in the field of ocean biogeochemistry and productivity using mechanistic models and synthesis of observations. Note the short fuse for applications. Please help distribute. All nationalities welcome to apply! 🌊 www.jobs.ac.uk/job/DPG117/p...

If you are looking for 6month master research internship - really cool team 🙃 !

Please repost and pass on to your students looking for M2 internships.

Please repost and pass on to your students looking for M2 internships.

Just realised that this is as close to an "M2-M2" project as you are likely to get. Explore the aftermath of one of the most interesting features of the Pliocene, MIS M2 during your M2 internship! www.sciencedirect.com/science/arti...

Wonder what carbon was doing in the oceans before humans were around to see? We'll use the chemistry of tiny shells on the seafloor to find out how carbon moved between the ocean and atmosphere over 1 million years ago. Come work with us in 2026 for your M2 internship @climatecerege.bsky.social.

Interested in improving our knowledge of climate by looking into the past? In the Pliocene the earth was hotter than today, but carbon dioxide was "about the same". Come work with us in 2026 looking at where this crucial information comes from, and how to make it better during an M2 internship.

Excited to share our new paper out today in Science led by Patrizia Ziveri and the BIOCAL Working Group! With @willerstorfi.bsky.social, @nanophyto.bsky.social, @tdegaridel.bsky.social and many colleagues! @climatecerege.bsky.social @icta-uab.bsky.social 🔗 science.org/doi/10.1126/science.adq8520

Are you looking for a master's internship (5-6 months)? Early Pleistocene deep ocean carbon storage in the Caribbean Sea 🌎🌊 Come to @climatecerege.bsky.social, south of France☀️🇫🇷 Deadline: 30 Nov 2025. Start: Jan-Feb 2026. More info👇 nuage.osupytheas.fr/s/AF4qYHA4CQ...

Just because the ocean is overall well oxygenated doesn't mean there wouldn't be periods and localities experiencing anoxia, especially if you put pulses of CO2 into the atmosphere. 🧪⚒️ Link: www.pnas.org/doi/10.1073/...