Sonia Chaabane
@soniachaabane.bsky.social
Marine Ecology - Plankton - Biodiversity | IRD Researcher at CEREGE, France
Pinned
Sonia Chaabane
@soniachaabane.bsky.social
· Nov 13
Migrating is not enough for modern planktonic foraminifera in a changing ocean - Nature
Low-latitude planktonic foraminifera are coping with rapid ocean warming, acidification and nutrient shifts by migrating to deeper water-column depths or polewards, displacing higher-latitude species ...
www.nature.com
🌊📉 New Paper Alert! "Migrating is Not Enough for Modern Planktonic Foraminifera in a Changing Ocean" published Open Access in Nature🧵👇
Me & @tdegaridel.bsky.social @juliemeilland.bsky.social @sulpis.bsky.social @chalkyoceans.bsky.social and others
www.nature.com/articles/s41...
Me & @tdegaridel.bsky.social @juliemeilland.bsky.social @sulpis.bsky.social @chalkyoceans.bsky.social and others
www.nature.com/articles/s41...
Bravo @juliemeilland.bsky.social!! 🎉
Well deserved 🍾
Well deserved 🍾
@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!
Yay!
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!
November 7, 2025 at 3:02 PM
Bravo @juliemeilland.bsky.social!! 🎉
Well deserved 🍾
Well deserved 🍾
Reposted by Sonia Chaabane
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" !!
@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!
Yay!
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!
November 7, 2025 at 2:53 PM
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" !!
Reposted by Sonia Chaabane
The Laschamp geomagnetic excursion recorded in marine sediments from the western South Atlantic 🌊
New paper alert👇
doi.org/10.1016/j.qu...
New paper alert👇
doi.org/10.1016/j.qu...
Redirecting
doi.org
November 4, 2025 at 9:18 AM
The Laschamp geomagnetic excursion recorded in marine sediments from the western South Atlantic 🌊
New paper alert👇
doi.org/10.1016/j.qu...
New paper alert👇
doi.org/10.1016/j.qu...
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
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
October 23, 2025 at 9:15 PM
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
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
Reposted by Sonia Chaabane
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...
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...
stage_M2_Suarez-Ibarra.pdf
Nuage - le Nuage de l'OSU Pytheas
nuage.osupytheas.fr
October 15, 2025 at 3:10 PM
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...
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...
Reposted by Sonia Chaabane
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...
📍 CEREGE (Aix-en-Provence) | 🗓 Start Jan–Mar 2026 | ⏳ Apply by 31 Oct 2025
See flyer:
nuage.osupytheas.fr/s/ZGcJtgN6Sm...
Sujet de M2_MANGO2026.pdf
Nuage - le Nuage de l'OSU Pytheas
nuage.osupytheas.fr
October 14, 2025 at 6:14 AM
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...
📍 CEREGE (Aix-en-Provence) | 🗓 Start Jan–Mar 2026 | ⏳ Apply by 31 Oct 2025
See flyer:
nuage.osupytheas.fr/s/ZGcJtgN6Sm...
Reposted by Sonia Chaabane
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
Supervision: Sonia Chaabane, Olivier Sulpis, Thibault de Garidel, Laetita Licari (CEREGE). Allowance per French regs.
Apply: Send CV + cover letter → chaabane@cerege.fr
October 14, 2025 at 6:14 AM
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
Supervision: Sonia Chaabane, Olivier Sulpis, Thibault de Garidel, Laetita Licari (CEREGE). Allowance per French regs.
Apply: Send CV + cover letter → chaabane@cerege.fr
Reposted by Sonia Chaabane
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.
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
October 9, 2025 at 12:59 PM
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.
including @case4climate.bsky.social, @michaelhenehan.bsky.social,... @eleniwater.bsky.social.
🌊🎙️ 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
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
October 8, 2025 at 9:31 AM
🌊🎙️ 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
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
Reposted by Sonia Chaabane
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!
October 2, 2025 at 9:55 AM
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 🚀.
If you’re passionate about oceans, climate change, and marine biogeochemistry, this is your call to dive into world-class research 🚀.
🌟 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!
⬇️
🚢 Are you a passionate researcher ready to tackle climate change? Dive into the ERC-funded Deep-C project in Aix-en-Provence, France!
⬇️
September 29, 2025 at 7:00 PM
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 🚀.
If you’re passionate about oceans, climate change, and marine biogeochemistry, this is your call to dive into world-class research 🚀.
Reposted by Sonia Chaabane
📚 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.
Apply by mid-Oct here: emploi.cnrs.fr/Offres/CDD/U.... We'll extend to end of October if needed.
Portail Emploi CNRS - Offre d'emploi - H/F Chercheur en Biogeochimie marine
emploi.cnrs.fr
September 29, 2025 at 10:01 AM
📚 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.
Apply by mid-Oct here: emploi.cnrs.fr/Offres/CDD/U.... We'll extend to end of October if needed.
Reposted by Sonia Chaabane
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...
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
September 19, 2025 at 7:30 AM
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...
www.sciencedirect.com/science/arti...
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
@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
September 4, 2025 at 5:24 AM
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
@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
Reposted by Sonia Chaabane
Watch this space for so much new exciting science from the new influx of Ceregiens. @cerege.bsky.social
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
Congratulations to @antacl.bsky.social for starting her new position soon 🥳
@climatecerege.bsky.social @cerege.bsky.social
September 4, 2025 at 5:03 AM
Watch this space for so much new exciting science from the new influx of Ceregiens. @cerege.bsky.social
Reposted by Sonia Chaabane
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!
September 4, 2025 at 4:41 AM
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!
Reposted by Sonia Chaabane
Thank you so much for the invitation #ICP15. Diversity makes us stronger, and the data shows it! ⏩🏳️🌈
Lovely to hear from @chalkyoceans.bsky.social about need for #diversity (of careers, people, methods and
minds) that underpins our working 🙏🏼 #ICP15
minds) that underpins our working 🙏🏼 #ICP15
Next up @chalkyoceans.bsky.social improving Neogene CO2 reconstructions - proxies, calibrations, morphotypes and much more.. 🙏🏼
September 2, 2025 at 5:11 PM
Thank you so much for the invitation #ICP15. Diversity makes us stronger, and the data shows it! ⏩🏳️🌈
Reposted by Sonia Chaabane
Lovely to hear from @chalkyoceans.bsky.social about need for #diversity (of careers, people, methods and
minds) that underpins our working 🙏🏼 #ICP15
minds) that underpins our working 🙏🏼 #ICP15
Next up @chalkyoceans.bsky.social improving Neogene CO2 reconstructions - proxies, calibrations, morphotypes and much more.. 🙏🏼
September 1, 2025 at 4:48 AM
Lovely to hear from @chalkyoceans.bsky.social about need for #diversity (of careers, people, methods and
minds) that underpins our working 🙏🏼 #ICP15
minds) that underpins our working 🙏🏼 #ICP15
✨ 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...
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
July 30, 2025 at 5:00 PM
✨ 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...
Huge congratulations to everyone involved!
@climatecerege.bsky.social @ird-fr.bsky.social
#ScienceForAll #UCAD #IRD #Biodiversity #Africa #BISSAP
www.ird.fr/inauguration...
Reposted by Sonia Chaabane
🚨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...
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...
PLANKTONIC FORAMINIFERA TEST SIZE DICTATED BY CONDITIONS IN LIFE AND POST-MORTEM | Journal of Foraminiferal Research | GeoScienceWorld
ABSTRACT. In this study, we quantify the impact of environmental conditions (temperature, productivity, and salinity) and taphonomic (carbonate
doi.org
July 28, 2025 at 4:14 PM
🚨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...
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
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
July 7, 2025 at 9:06 AM
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
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
Reposted by Sonia Chaabane
«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 💪🏼
May 24, 2025 at 1:29 PM
«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 💪🏼
Reposted by Sonia Chaabane
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).
May 7, 2025 at 1:50 PM
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).
Reposted by Sonia Chaabane
Excited to have hundreds of baby Forams in the lab after the first towing - different species - different behaviors! @exoceanlab.bsky.social @chalkyoceans.bsky.social
May 7, 2025 at 1:56 PM
Excited to have hundreds of baby Forams in the lab after the first towing - different species - different behaviors! @exoceanlab.bsky.social @chalkyoceans.bsky.social