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exoCean Laboratory @exoceanlab.bsky.social · 6d

A bit more than a year ago, it was more of a storage unit. So much done - thanks to the effort of multiple people but especially our research engineer 🌟 Maxime

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exoCean Laboratory @exoceanlab.bsky.social · 6d

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!

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exoCean Laboratory @exoceanlab.bsky.social · 9d

Apply by the end of October for this @erc.europa.eu funded research, and hope to see you here!

exoCean Laboratory @exoceanlab.bsky.social · 9d

You'll join a great, and growing team of researchers at the @climatecerege.bsky.social & @cerege.bsky.social. You'll be amongst people studying calcification, the biology of major plankton groups, and how they can be used for climate science.

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exoCean Laboratory @exoceanlab.bsky.social · 9d

Sediments dissolving on the seafloor can act as a long term sink for carbon dioxide emissions. We're bringing it to the lab, deep sea research from the comfort of Southern France!

Postdoctoral position for 2 years available working with @sulpis.bsky.social in the @exoceanlab.bsky.social.

Olivier Sulpis @sulpis.bsky.social · 9d

🌟 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!

⬇️

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Reposted by exoCean Laboratory

Tom Chalk @chalkyoceans.bsky.social · 19d

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…

www.sciencedirect.com

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Reposted by exoCean Laboratory

Tom Chalk @chalkyoceans.bsky.social · Sep 4

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!

Anta delivering her #ICP15 talk in Bengaluru.

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exoCean Laboratory @exoceanlab.bsky.social · Sep 2

ExoCean lab gets its first outing on a big palaeoclimate stage. @juliemeilland.bsky.social, @sulpis.bsky.social I hope you are ready for some visitors from #ICP15.

Climate group @CEREGE, France @climatecerege.bsky.social · Sep 1

@chalkyoceans.bsky.social on stage at #ICP15 !

Pallavi Anand (she/her) @anandpallavijha.bsky.social · Sep 1

#ICP15 presents first panel discussion on #Biogeochemistry and #Climate 🙏🏼
@chalkyoceans.bsky.social @jfarmersalmanac.bsky.social @eleniwater.bsky.social @seavdavis.bsky.social @alexauderset.bsky.social
Arvind Singh
and conveyors Adina Paytan and Harshit Singh
Along with stage volunteers 🙏🏼

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Reposted by exoCean Laboratory

Sonia Chaabane @soniachaabane.bsky.social · Jul 30

✨ 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...

www.ird.fr

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Reposted by exoCean Laboratory

Climate group @CEREGE, France @climatecerege.bsky.social · Jul 24

Have you heard of our @exoceanlab.bsky.social lab? It's a new facility for experimental oceanography -- We culture, measure, and dissolve carbonates there. Register to the account to get fresh updates from what we are doing there!

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Reposted by exoCean Laboratory

CEREGE @cerege.bsky.social · May 26

🌍 Tenure Track Junior Professorship at CEREGE
Focus: Critical zone evolution & global change in Mediterranean & intertropical Africa

CEREGE is hiring a Junior Professor (tenure track) with a pathway to IRD Research Director.

More information here : en.ird.fr/tenure-track...

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exoCean Laboratory @exoceanlab.bsky.social · May 24

Better together!

Julie Meilland @juliemeilland.bsky.social · May 24

«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 💪🏼

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Reposted by exoCean Laboratory

Julie Meilland @juliemeilland.bsky.social · May 24

«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 💪🏼

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Reposted by exoCean Laboratory

Julie Meilland @juliemeilland.bsky.social · May 20

Bermuda cave sampling today with @blancobercial.bsky.social for these little monsters (lovely forams)! Thank you Leo, @chalkyoceans.bsky.social, @biosstation.bsky.social !
@exoceanlab.bsky.social

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exoCean Laboratory @exoceanlab.bsky.social · May 20

We're away from our lovely light and temperature controlled incubators @exoceanlab.bsky.social, but that doesn't mean we can't keep our plankton happy. @biosstation.bsky.social water baths to the rescue. If you've ever wondered what culturing for trace isotope systems looks like, it's this! #d11B

Dozens of small plastic flasks, each containing an individual foram sit in a temperature controlled water bath, under lights.

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Reposted by exoCean Laboratory

Julie Meilland @juliemeilland.bsky.social · May 12

With the « Life of Retaria » we do podcasts! Listen to the first one during which we interviewed @fabnot.bsky.social #protistsonsky

Nicole Coots @nicolecoots.bsky.social · May 12

My friends in the Life of Retaria group decided to make a podcast! In the first episode, they interview @fabnot.bsky.social about his journey as a scientist. I loved the first episode, hope you do too! @juliemeilland.bsky.social @sandinmm.bsky.social et al.

thelifeofretaria.github.io/podcast.html

The Life of Retaria Experience

thelifeofretaria.github.io

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exoCean Laboratory @exoceanlab.bsky.social · May 12

🔬We’d love to connect with others working on pteropods, marine plankton, or delicate pelagic organisms. Any advice on identification of early life stages, or tips for cultivation protocols, would be incredibly welcome.

📩 Let’s talk pteropods! Email us at: [email protected]

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exoCean Laboratory @exoceanlab.bsky.social · May 12

🧫 Raising pteropods in vitro is still a big challenge, and very few labs around the world work on it. We’re thrilled by this success, but we also know it’s just the beginning.

(Inspired by the recent video from @antarctic.bsky.social — incredible work!)

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exoCean Laboratory @exoceanlab.bsky.social · May 12

It’s a rare and delicate glimpse into the life cycle of these fascinating planktonic snails — often called “sea butterflies.”

Led by Laura Khim, MSc student @univparissaclay.bsky.social currently working @cerege.bsky.social

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exoCean Laboratory @exoceanlab.bsky.social · May 12

Back in France, exoCean is still working hard...
🐚✨ A tiny miracle in the lab!
For the first time in our team’s history, we’ve successfully harvested pteropod egg sacs and captured the moment of their eclosion on film.

About 12 juvenile pteropods as seen through a microscope.

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exoCean Laboratory @exoceanlab.bsky.social · May 7

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).

Tom with a fresh plankton sample about to be poured into the collection bucket. It's white so they stay cool on the way back to the lab.

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exoCean Laboratory @exoceanlab.bsky.social · May 7

First things first, collecting forams (tiny single cellular protists who live as plankton) using a net. Like fishing but with a really small mesh size.

A plankton net coming out of the deep water off the eastern side of Bermuda.

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exoCean Laboratory @exoceanlab.bsky.social · May 7

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.

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

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exoCean Laboratory @exoceanlab.bsky.social · May 6

Stay tuned for lots of updates from us, and thanks to @climatecerege.bsky.social, @cerege.bsky.social, @cnrs.fr and @erc.europa.eu for the support.

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exoCean Laboratory @exoceanlab.bsky.social · May 6

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.

Tom is packing a large metal container ready for fieldwork in Bermuda, watch this space!

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