Another Retaria day, remember to sign up for the seminar series “The Life of Retaria”! thelifeofretaria.github.io/index.html

#Canada, you too? @jysuarezibarra.bsky.social, Marie Curie postdoctoral fellow in our lab, was particularly enthusiastic to attend the @goldschmidt-confer.bsky.social conference this Summer. But, because Jaime is Colombian, you rejected his visa application.

Bravo @juliemeilland.bsky.social!! 🎉 Well deserved 🍾

exoCean Laboratory@exoceanlab.bsky.social · 9mo ago

@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!

So excited to see how this revolutionises foraminifera work. Well done and deserved @juliemeilland.bsky.social, but not sure I can ever forgive you for getting me into the "living stuff" !!

exoCean Laboratory@exoceanlab.bsky.social · 9mo ago

@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!

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

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

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

Calcifying plankton: From biomineralization to global change

The cycling of calcium carbonate (CaCO3) in the ocean is closely linked to seawater alkalinity and the regulation of atmospheric CO2. In the modern pelagic ocean, almost all CaCO3 is produced by three...

science.org

Are you looking for a master's internship (5-6 months)? Constraining tropical planktonic foraminifera depth habitats in a (past) high-CO2 world 🥵🌎 Come to @climatecerege.bsky.social, south of France☀️🇫🇷 Deadline: 15 Nov 2025. Start: Jan-Mar 2026. More info👇 nuage.osupytheas.fr/s/fdAEGQXkwA...

Master's internship (6 months) — Mangrove–ocean oxygen dynamics in Senegal 📍 CEREGE (Aix-en-Provence) | 🗓 Start Jan–Mar 2026 | ⏳ Apply by 31 Oct 2025 See flyer: nuage.osupytheas.fr/s/ZGcJtgN6Sm...

You bring: M2 in env./geo/marine sciences, basic Matlab/Julia/Python, and interest in field, lab & modeling. Supervision: Sonia Chaabane, Olivier Sulpis, Thibault de Garidel, Laetita Licari (CEREGE). Allowance per French regs. Apply: Send CV + cover letter → chaabane@cerege.fr

New paper(s) alert! Check out @agu.org Palaeoceanography & Paleoclimate. Including our piece on best practices going forward for d11B-CO2 reconstructions. agupubs.onlinelibrary.wiley.com/doi/10.1029/... including @case4climate.bsky.social, @michaelhenehan.bsky.social,... @eleniwater.bsky.social.

Perspectives for Best Practices in Boron‐Based CO2 Reconstruction

Boron isotopes are an important marine paleoclimate proxy to reconstruct past ocean pH and atmospheric carbon dioxide in geological time Sources of uncertainty of past CO2 estimation shifts from ...

agupubs.onlinelibrary.wiley.com

🌊🎙️ Nouveau podcast : @nicolas-roche.bsky.social, les procédés innovants de dépollution des eaux usées. Plongez dans les coulisses de la dépollution, découvrez des technologies audacieuses pour préserver l’eau. 👉 À écouter absolument : youtu.be/I_ne_JOtRdw?... @cerege.bsky.social

Nicolas Roche, les procédés innovants de dépollution des eaux usées

YouTube video by Aix Marseille Université

youtu.be

The lab keeps evolving and we are THRILLED! More equipment is about to arrive, some more is planned, and we feel super excited about our different projects. Also really… what a view when the doors are open, one can even see the emblematic « sainte victoire » behind the trees!

Exciting chance to join the ERC-funded Deep-C project with @sulpis.bsky.social at CNRS-CEREGE in Aix-en-Provence 🇫🇷. If you’re passionate about oceans, climate change, and marine biogeochemistry, this is your call to dive into world-class research 🚀.

Olivier Sulpis@sulpis.bsky.social · 10mo ago

🌟 Postdoc Opportunity in Marine Biogeochemistry at CNRS-CEREGE! 🚢 Are you a passionate researcher ready to tackle climate change? Dive into the ERC-funded Deep-C project in Aix-en-Provence, France! ⬇️

📚 Requires a PhD in geochemistry/oceanography. Apply by mid-Oct here: emploi.cnrs.fr/Offres/CDD/U.... We'll extend to end of October if needed.

Nice comparison of foram-coating derived and sediment derived #Ndisotopes in the Mediterranean from Kazuyo Tachikawa and others @climatecerege.bsky.social and @cerege.bsky.social. Small cautionary tale for unrestricted use (of sediment), but normally it works! www.sciencedirect.com/science/arti...

The authigenic and detrital neodymium isotopic composition in the modern Mediterranean Sea: implications for paleocirculation proxy

Neodymium isotopic composition (143Nd/144Nd or εNd) has been used as a tracer of water mass provenance in the modern and the past oceans. However, rec…

sciencedirect.com

My besties! ♥️ @chalkyoceans.bsky.social & @antacl.bsky.social Science has never been about competition! It’s about sharing, learning, and enjoying the journey together. Thank you for being such wonderful researchers and friends! #ICP15 @climatecerege.bsky.social

Watch this space for so much new exciting science from the new influx of Ceregiens. @cerege.bsky.social

Pallavi Anand (she/her)@anandpallavijha.bsky.social · 11mo ago

Day 4, #ICP15, next up @antacl.bsky.social talking about long term evolution of South Asian Summer Monsoon. Congratulations to @antacl.bsky.social for starting her new position soon 🥳 @climatecerege.bsky.social @cerege.bsky.social

Future (and past) @climatecerege.bsky.social superstar @antacl.bsky.social giving her #ICP15 talk now. Modelling the Indian monsoon in the Miocene, and some important praise to the organisers for their diverse programme of speakers. Bravo!

Thank you so much for the invitation #ICP15. Diversity makes us stronger, and the data shows it! ⏩🏳️‍🌈

Pallavi Anand (she/her)@anandpallavijha.bsky.social · 11mo ago

Lovely to hear from @chalkyoceans.bsky.social about need for #diversity (of careers, people, methods and minds) that underpins our working 🙏🏼 #ICP15

Lovely to hear from @chalkyoceans.bsky.social about need for #diversity (of careers, people, methods and minds) that underpins our working 🙏🏼 #ICP15

Pallavi Anand (she/her)@anandpallavijha.bsky.social · 11mo ago

Next up @chalkyoceans.bsky.social improving Neogene CO2 reconstructions - proxies, calibrations, morphotypes and much more.. 🙏🏼

✨ Honored to witness the inauguration of the BISSAP lab at UCAD — a new lab for ecosystem monitoring in Senegal! 🌍🔬 Huge congratulations to everyone involved! @climatecerege.bsky.social @ird-fr.bsky.social #ScienceForAll #UCAD #IRD #Biodiversity #Africa #BISSAP www.ird.fr/inauguration...

Inauguration du laboratoire BISSAP à l’UCAD : un nouveau centre de référence pour la surveillance des écosystèmes aquatiques en Afrique de l’Ouest | Site Web IRD

Le 21 juillet 2025, l’Université Cheikh Anta Diop de Dakar (UCAD) a inauguré le laboratoire BISSAP (Bioindicateurs, Imagerie et Surveillance des Systèmes Aquatiques et Pélagiques), en présence de Mous...

ird.fr

🚨New paper alert🚨 Using the mean and 95th percentile of cross-sectional area measurements, we documented ecological and taphonomic imprints on the test size variation of planktonic foraminifera. @soniachaabane.bsky.social @chalkyoceans.bsky.social @tdegaridel.bsky.social doi.org/10.61551/gsj...

SASHIMI has arrived in Senegal 🇸🇳 Not the sushi!! the microscope. It scans tiny fossils with love, patience, and cables 🌀 From @cerege.bsky.social to BISSAP Lab, it crossed borders to help us see the invisible. Welcome, little scanner. Let’s make micro-history together 🇸🇳❤️ #ScienceHasNoBorders

«You can’t have it all» they said. After weeks of field work in Bermuda, partly with my little one and significant other, thanks to the support of the amazing @chalkyoceans.bsky.social… I feel very optimistic that it is possible. Keep going! There’s room for science and tiny humans in our lives 💪🏼

We then collect the live plankton and try to keep them alive long enough to get to the lab. There we can look at how they respond to different conditions in a controlled setting. (And if you know @chalkyoceans.bsky.social, you know there will be boron involved).

Excited to have hundreds of baby Forams in the lab after the first towing - different species - different behaviors! @exoceanlab.bsky.social @chalkyoceans.bsky.social

exoCean Laboratory@exoceanlab.bsky.social · last yr.

ExoCean is in #Bermuda! Or at least most of it is (sorry @sulpis.bsky.social). We're here looking for foraminifera to grow in the lab, and sediments to observe how they will react to ocean change.

Julie Meilland, marine biologist at the CNRS, studies planktonic foraminifera — focusing on their population dynamics, life cycle, reproduction, and ecological role in the carbon cycle. Her research explores their adaptive potential as model species in the modern and future oceans.

Tom Chalk, an isotope geochemist (interested in the tiny variations in mass of chemical elements), specialising in boron, the 5th element. I am the Principal Investigator of the ERC project ForCry and CNRS researcher, interested in the natural history and unnatural future of Earth’s climate.