July 8, 2025

NECCTON ECOP Sarah Albernhe Successfully Defends PhD on Micronekton Dynamics and Ecosystem Modelling

🎓 Congratulations to Sarah ALBERNHE, one of NECCTON’s Early Career Ocean Professionals (ECOPs)! 🌊

This Tuesday, July 8th, Sarah brilliantly defended her PhD, jointly supervised by (Laboratoire d'Océanographie Physique et Spatiale) and CLS Group (Collecte Localisation Satellites)

🐟 Her thesis, titled “Spatio-temporal variability of micronekton biomass: impact of environmental conditions and trophic interactions,” explores the critical role of micronekton in ocean ecosystems. Micronekton - marine organisms ranging from 2 to 20 cm, including fish, crustaceans, and cephalopods - play a key role in oceanic food webs and carbon sequestration through their daily vertical migrations.

Sarah’s research used modeling approaches to investigate how environmental conditions and trophic interactions drive the variability of micronekton biomass across space and time.

Her work led to a novel representation of trophic interactions in ecosystem modeling, improving the seasonal dynamics of micronekton in regions such as Kerguelen and New Caledonia, and contributing to a deeper understanding of their role in biogeochemical cycles.

👏 A big bravo to Sarah for this important contribution to marine science and to the NECCTON community!

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NEWS AND PROJECT UPDATES

February 27, 2026|Project Update

NECCTON Co-Organises Marine Ecosystem Modelling Session at OSM26

At the Ocean Sciences Meeting 2026 in Glasgow (22–27 February 2026), NECCTON co-organised the session “Advancing Marine Ecosystem Modeling for a Predictable and Sustainable Ocean” together with OceanPredict’s Marine Ecosystem Analysis and Prediction Task Team. ...

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October 20, 2025|News

Mapping 25 Years of Micronekton Dynamics Across Changing Ocean Provinces

This study defines environmentally similar “provinces” to map and track changes in micronekton biomass and vertical structure from 1998 to 2023, shedding light on the seasonal and year‑to‑year variability of these key mid‑sized ocean organisms that drive deep‑sea carbon export and feed many marine predators....

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