Olivier Sulpis

Postdoc vacancy: Microbial dormancy in the cryosphere
@erc.europa.eu #ERC_SIESTA
📢 PLEASE RT

🧬 Single cell microbial activity measurements, flow cytometry, cell sorting, omics, ecological interpretation

☀️ Marseille, France
‼️ Apply ASAP & before 7 Nov
Link: emploi.cnrs.fr/Offres/CDD/U...

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

You’ll work on: a 1-week field trip to Senegal (expenses covered), sediment cores & in-situ oxygen profiles; benthic foraminifera proxies; and the RADI 1-D reactive transport model to reconstruct porewater oxygenation.

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...

Reminder - the exoCean lab is hiring

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!

📚 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.

🔬 Explore CaCO3 dissolution in deep-sea sediments using cutting-edge high-pressure reactors. Lead experiments, publish impactful research, and collaborate globally.

💼 This 2yr role (flexible start Jan-Apr 2026) offers 3.1-4.2k€ gross/month, full funding, mentorship, and fieldwork opportunities.

🌟 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!

⬇️

2 Postdoc vacancies: Microbial dormancy in the cryosphere
@erc.europa.eu #ERC_SIESTA
📢 PLEASE RT

Experimental:
🧬 Single cell microbial activity measurements, flow cytometry, omics, biogeochem

Modelling:
🖥️ Bioenergetics, thermodynamics, ecological, biogeochem

☀️ Marseille, France
‼️ Apply by 30 Sept

📝 New preprint out!
We investigated how the marine biological carbon pump is spatially redistributing carbon, even as its global strength stays constant.
➡️ Shifting remineralization patterns
🌊 Implications for carbon storage under climate change

Read here: doi.org/10.21203/rs....

Tout aussi impressionnant vu de dessous!

NanoCLICS: A New Approach to Understanding Carbon Dynamics in Soils - CEREGE Isabelle Basile-Doelsch, Director of Research at INRAE and based at CEREGE, has been working for several years on the dynamics of carbon in soils, an area of particular concern for the environment.

🏅 Congratulations to Isabelle Basile-Doelsch, Research Director at INRAE/CEREGE, for winning an @erc.europa.eu Advanced Grant for her NanoCLICS project.

Learn more about her project: www.cerege.fr/en/nanoclick...

This study hypothesized that rapid organic carbon deposition and active microbial respiration in the deep ocean environment may promote the occurrence of intense #SilicateWeathering, and proposed a conceptual model of carbon-silica coupling cycle in the #Deep-sea 🌊🧪🪨

This week, I gave a TEDx talk on listening to the ocean’s climate clues. A few days later, I found myself underwater doing exactly that—though not quite how I expected.

We captured a fin whale call on a GoPro while diving near Nice. Estimated ~5 km away. Wild.

#OceanScience #UNOC2025

The boat Henry Stommel getting ready for a plankton tow at the BIOS dock.

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.

🌟 Exciting News for the Geochemistry Community! 🌟

We are thrilled to announce the launch of a new diamond open access journal: Advances in Geochemistry and Cosmochemistry (AGC)! @weareagc.bsky.social doi.org/10.33063/agc...

Our brand new lab of experimental ocean sciences now has its own Bluesky account! Follow to know what we, our colleagues and students are up to ⬇️🌊

Dear US colleagues,
In response to the Trump administration, my university @univ-amu.fr is setting up a new program dedicated to welcoming American scientists wishing to pursue their work in France.
There are several M$ in the budget.
www.univ-amu.fr/en/public/ac...

You have until December this year to get your degree, not too late!

🚨Postdoc Offer🚨

Fully funded 2-year research position at Paris or Aix-en-Provence: your choice!

The project aims to predict OAE feedbacks and environmental impacts in the ocean interior, in particular at the seabed.

See job ad : nuage.osupytheas.fr/s/4zMfHFZ8S2...

Please share widely! ⚛️

Save the date! The Ocean Sciences Meeting is coming to Glasgow, Scotland, 22-27 Feb 2026—the first OSM outside the US! 🌍 Join scientists, students, journalists, & more to grow our global ocean community, foster partnerships & build a sustainable future. #OSM26 @agu.org @tosoceanography.bsky.social

Come work with us at CEREGE, in Provence, for a position at the intersection of science, communication and management!

@sulpis.bsky.social, @chalkyoceans.bsky.social and I are hiring a project officer and communication manager to handle the communication of our ERC projects and help us with the French administrative procedures at @cerege.bsky.social. You can find the job offer here: emploi.cnrs.fr/Offres/CDD/U...

Schematic representing the three modes of alteration observed in the sediment grains when exposed to bacteria (V. marismortui and H. meridiana) for an extended period. Arrow going from left (start) to right) showing precipitation of mineral envelopes with higher Mg/Ca ratio and lower d13C value.

The thing about early alteration of grains in the sediment, is that there are a lot of things living there. So, while chemistry is what's working on the fundamental level, (micro)biology is a critical mediating factor. 🧪⚒️
www.nature.com/articles/s41...

High metabolic zinc demand within native Amundsen and Ross sea phytoplankton communities determined by stable isotope uptake rate measurements Abstract. Zinc (Zn) is an essential micronutrient for most eukaryotic phytoplankton. Zn uptake by phytoplankton within the euphotic zone results in nutrient-like dissolved Zn (dZn) profiles with a lar...

Marine Zn limitation is a thing bg.copernicus.org/articles/21/...

🌟 Thrilled to celebrate @lucbeaufort.bsky.social, senior researcher at CNRS @cerege.bsky.social @climatecerege.bsky.social, for receiving a prestigious medal at the 2024 AGU Honors Ceremony! 🏅

📽️ Watch the ceremony in the thread below ⬇️

Eye-opening new paper by Fiorella Prada et al., describing proteins involved in "active Ca2+ trafficking": Proteomic characterization of a foraminiferal test’s organic matrix
🐚

With implications about paleoproxies and foram response to climate change... www.pnas.org/doi/abs/10.1...

Our fifth online CESABINAR will take place on Thurs Dec 12th, 3pm, Paris time

@soniachaabane.bsky.social and @tdegaridel.bsky.social, from @cerege.bsky.social, will present the work of the #CESAB FORCIS group :

Foraminifera Response to Climatic Stress

zoom : bit.ly/49CsXdW
key: 941365

🧪🌐🌍🦑

Stop emissions, stop warming: A climate reality check Why future warming isn't as "locked in" as you might think

On The Climate Brink: Stop emissions, stop warming: A climate reality check

This is a crucial point because it determines how much warming is already "locked in" and effectively unavoidable.

The answer is very little warming is locked in.

Also, this is our 100th post!

www.theclimatebrink....