Entité de rattachement
Exploration, Espèces et Evolution (3E)
Habilité(e) à diriger des recherches


line.le-gall [at] mnhn.fr
legall [at] mnhn.fr
01 40 79 31 97

12 rue Buffon


75005 Paris

Responsabilités hors unité

  • Director of the scientific exploration center at the Muséum national d'Histoire naturelle

  • Member of the implementation board of the Consortium for the Barcode Of Life
  • French representative on the Scientific Steering Committee (SSC) of the International Barcode of Life Initiative.
  • French representative in the Federation of European Phycological Societies
  • Co-leader of the Marine Macroalgal Initiative of International Consortium Initiative.
  • Co-editor of the special issue on DNA-barcoding of Cryptogamie Algologie (2010,32-4).
  • Editor in Chief of Cryptogamie Algologie since 2011.
  • Member of the Société Phycologique de France



Research interest :

My research interest focuses on ecology and evolution of macroalgae.
My main goals are : i) to explore and assess the macro algal alpha, beta and gamma diversity by conducting comprehensive sampling strategies as well as integrative systematic approach combining morpho-anatomical and molecular characters ; ii) to investigate macroalgal communities patterns and how historical and contemporary processes, including global change, influence these patterns ; and iii) to study the history of algal herbaria with a particular interest on the spread of concepts and practices in the aim to foster diachronic studies of communities.

Kallymenia crouaniorum © MNHN
Kallymenia crouaniorum, a recently described species (Robuchon et al. 2014), was uncovered during the course of a survey of the understory algal flora in the kelp forest of Laminaria hyperborea (Gunnerus) Foslie in Brittany.


Field Experience and Oceanographic expeditions


Pourquoi les algues marines sont-elles importantes ? - Pour que nature vive (2023)






  • Boo Ga Hun, Bottalico Antonella, Le Gall Line & Yoon Hwan Su, mars 2023Genetic diversity and phylogeography of a turf-forming cosmopolitan marine alga, gelidium crinale (gelidiales, rhodo-phyta). Cosmopolitan species are rare in red algae, which have a low-dispersal capacity unless they are dispersed by human-mediated… International Journal of Molecular Sciences vol. 24, n° 6, p. 5263 Publisher: MDPI tex.hal_id: mnhn-04029567 tex.hal_version: v1
  • Boo Ga Hun, Bottalico Antonella, Le Gall Line & Yoon Hwan Su, 2023Genetic Diversity and Phylogeography of a Turf-Forming Cosmopolitan Marine Alga, Gelidium crinale (Gelidiales, Rhodo-Phyta). Molecular Sciences vol. 24, n° 6, p. 5263
  • Hocdé Régis, Thouzeau Gérard, Bourquin Sophie, Borel Laurent, Coulange Mathieu, Féral Jean-Pierre, Feunteun Éric, Jacquet Stéphan, Le Bras Philippe, Le Gall Line, Legrand Sébastien, Lenfant Philippe, Lepage Mario, Play Caroline, Saragoni Gilles et al., 2023« Scientific diving in France: an overview of the current practices in science » in 7th European Conference on Scientific Diving.. The French National Committee for Scientific Diving (CNPS) takes on different tasks including acting as an observatory of… , , 1 p. multigr. Type: 10.23708/fdi:010087876
  • Stévant Pierrick, Schmedes Peter Søndergaard, Le Gall Line, Wegeberg Susse, Dumay Justine & Rebours Céline, 2023Concise review of the red macroalga dulse, Palmaria palmata (L.) Weber & Mohr. Abstract Palmaria palmata , commonly referred to as dulse , is a well-known and highly valued red macroalga distributed along… Journal of Applied Phycology , , Publisher: Springer Verlag tex.hal_id: mnhn-03932032 tex.hal_version: v1
    0921-8971, 1573-5176
  • Le Gall Line, 2023« The history od scientific study » in A singularly marine & fabulous produce: the Cultures of Seaweed.. , , p. 35-36 tex.hal_id: mnhn-04196571 tex.hal_version: v1
  • Vranken Sofie, Robuchon Marine, Dekeyzer Stefanie, Bárbara Ignacio, Bartsch Inka, Blanfuné Aurélie, Boudouresque Charles-François, Decock Wim, Destombe Christophe, de Reviers Bruno, Díaz-Tapia Pilar, Herbst Anne, Julliard Romain, Karez Rolf, Kersen Priit et al., 2023AlgaeTraits : a trait database for (European) seaweeds. Earth System Science Data vol. 15, n° 7, p. 2711-2754 Publisher: Copernicus Publications tex.hal_id: mnhn-04158627 tex.hal_version: v1
  • Tuya Fernando, Schubert Nadine, Aguirre Julio, Basso Daniela, Bastos Eduardo, Berchez Flávio, Bernardino Angelo, Bosch Néstor, Burdett Heidi, Espino Fernando, Fernández-Gárcia Cindy, Francini-Filho Ronaldo, Gagnon Patrick, Hall-Spencer Jason, Haroun Ricardo et al., 2023Levelling-up rhodolith-bed science to address global-scale conservation challenges. Science of the Total Environment vol. 892, , p. 164818 Publisher: Elsevier tex.hal_id: mnhn-04158707 tex.hal_version: v1
  • Rousseau Florence, Marani Gilberto, Blanfuné Aurelie, Pena-Martin Carolina, Robledo Daniel, Le Gall Line & Thibaut Thierry, 2023Contribution to the taxonomy of Sargassum with specimens from French West Indies ans South of the Madagascar coasts. , , Type: Poster