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Marion Lefebvre du Prey

 https://orcid.org/0000-0002-1062-3928

    Overview

    Profile summary

    Enthusiastic Fish Ecologist from France. 

    I am currently a Postgraduate Researcher in the Fish Habitat Research unit, supervised by Dr. Ben Ciotti. 

    My Research focuses on Marine Juvenile Fish Habitats. I use several functional indices (fish's growth, nutrition, connectivity) to improve our measurement of critical juvenile fish habitats and ultimately help setting conservation priorities.
     
    One important focus of my research is the calibration of a RNA-based index of growth for juvenile fish. I use a combination of field data and data obtained under controlled conditions in the lab to make this index robust and more applicable. 
     
    I also use fish's otoliths and eye lenses as archival tissues to study ontogenetic connectivity, looking at geochemistry and isotopes. 
     
    My case study is the wild population of juvenile common sole (Solea solea) in the Severn Estuary.
     
    I am also involved in the ICES Working Group on the Value of Coastal areas for Exploited Species. https://www.ices.dk/community/groups/Pages/WGVHES.aspx
     
    • Flatfish
    • Field work
    • Biogeochemistry
    • Fisheries sustainability
    • Bioenergetic Modeling
    • Marine Conservation
    • Animal husbandry and minor procedures (Marine fish)

    Additional information

    Last scientific communications:

    • International Flatfish Symposium, Netherlands, 2024
    • 7th International Conference on Marine Connectivity, France, 2024
    • Estuarine and Coastal Science Association Conference, Spain, 2022

     

    Last publications:

    • Lefebvre du Prey et al., 2025. Distribution of benthic communities in a hypoertidal estuary: Mapping potential prey sources for juvenile common sole Solea solea. https://doi.org/10.1016/j.ecss.2025.109660
    • Lefebvre du Prey et al., 2023. Assessing food limitation for marine juvenile fishes in coastal nurseries using a Bioenergetic approach. https://doi.org/10.1016/j.ecolmodel.2023.110419

     

    Grants obtained:

    • PlyMSEF Travel Grant. 2026
    • FSBI Research Grant. 2024

     

    Fundings:

    My research is fully funded by UKRI NERC ARIES Doctoral Training Partnership.

    Academic qualifications

    Mathematical sciences, Other higher degree (e.g. Masters degree), Use of Bioenergetic Modeling to investigate food limitation in coastal fish nurseries, Université de Rennes

    Award Date: 30 Jun 2022

    Biological and sport sciences, Other higher degree (e.g. Masters degree), Marine Ecosystems Functioning, Université de La Rochelle

    Award Date: 30 Aug 2020

    External positions

    Marine Ecologist, INRAE

    2022 → 2023

    Research Interests

    • Marine ecology
    • Fish physiology
    • Biochemistry
    • Modeling
    • Animal husbandry

    Expertise related to UN Sustainable Development Goals

    In 2015, UN member states agreed to 17 global Sustainable Development Goals (SDGs) to end poverty, protect the planet and ensure prosperity for all. This person’s work contributes towards the following SDG(s):

    1. SDG 12 - Responsible Consumption and Production
      SDG 12 Responsible Consumption and Production
    2. SDG 13 - Climate Action
      SDG 13 Climate Action
    3. SDG 14 - Life Below Water
      SDG 14 Life Below Water

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