Mon travail de recherche porte sur la description de la biodiversité, sur la compréhension des mécanismes à l’origine de cette biodiversité et sur son maintien au cours du temps à l’échelle des espèces et des populations. Je travaille donc sur la dynamique spatiale et temporelle de la biodiversité en m’appuyant sur des technologies de séquençage traditionnel (génétique) et de nouvelle génération (génomique & ADN environnemental). Dans le cadre d’une crise sans précédent de la biodiversité, l’utilisation de l’outil moléculaire permet d’identifier des zones essentielles de conservation et d’évaluer la connectivité des populations et les déterminants des assemblages des espèces (e.g. environnement, connectivité). Je m’intéresse particulièrement aux poissons tropicaux, d’eau douce et marins, ce qui m’a amené à travailler sur des projets portant sur différents hotspots de biodiversité, du Pacifique Sud (Polynésie française, ile de Pâques), d’Amérique du Sud, d’Indonésie et d’Afrique.

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Dr Erwan Delrieu-Trottin joined the CEFE in 2021 as an Associate Professor from Ecole Pratique des Hautes Etudes. His research focuses on the origin and dynamic of biodiversity, working at the scale of species and populations. He works on the spatial and temporal dynamics of biodiversity by relying on traditional and next generation sequencing technologies. In the context of an unprecedented biodiversity crisis, the use of the molecular tool makes it possible to identify essential areas of conservation and to assess populations connectivity and the determinants of species assemblages. (e.g. environment, connectivity). He is particularly interested in tropical freshwater and marine fishes, which led him to work on projects related to different biodiversity hotspots, in the South Pacific (French Polynesia, Easter Island), South America, Indonesia and Africa.

Keywords:
Research disciplines: Population genomics – Phylogeny – Biodiversity discovery

Techniques used: Whole Genome resequencing – ddRAD – eDNA metabarcoding – Barcoding

 Bibliographie

ARTICLES IN REFEREED JOURNALS: 36 PUBLISHED, 3 IN REVISION

Macé B*, Manel, S., Valentini, A., Rocle, M., Roset, N., & Delrieu-Trottin, E. (2025). NeMO: a flexible R package for nested multi-species occupancy modelling and eDNA study optimisation. bioRxiv, 2025.05.23.655794.

Mona S, Benazzo A, Delrieu-Trottin E, Lesturgie P. (2023) Population genetics using low coverage RADseq data in non-model organisms: biases and solutions. Authorea. April 26, 2023.

2025 (5)
36. Giles E, Laso-Jadat R, Ortiz-Barrientos D, Cariman P, Delrieu-Trottin E, Guillemin ML, Mona S, Pochon X, Saenz-Agudelo P (2025) Mapping species birth across the recombination landscapes of marine snails. Molecular Ecology, 34:e70108.

35. Delrieu-Trottin E, Bianic M, Miaud C, Garcia M, Arnal V, Hocde R, Cochet C, Barre N, Cornil L, Manel S (2025) Improving the monitoring of the invasive blue crab : Combining eDNA and citizen observations. Aquatic Conservation: Marine and Freshwater Ecosystems, 35, (7): e70179.

34. Delrieu-Trottin E, Koppetsch T, Rønning A-H, Matschiner M. (2025) Thor Heyerdahl’s legacy - ichthyological and herpetological collection on Fatu-Hiva (Marquesas Islands) in 1937. Pacific Science, 78(4), 373-385.

33. Delrieu-Trottin E, Ben Chehida S*, Sholihah A*, Rüber L, Page L, Kustiati K, Fitriana Y, Zein MSA, Elvyra R, Wibowo A, Nurhaman U, Keith P, Utama I, Muchlisin ZA, Risdawati R, Pouzadoux J, Tilak MK, Dahruddin H, Sauri S, Agnèse JF, Wowor D, Hubert N. (2025) Aquatic biotas of Sundaland are fragmented but not refugial. Systematic Biology, syaf005.

32. Castro-Garcia A, Delrieu-Trottin E, Saenz-Agudelo P, Rapu-Edmunds C, Plaza G, Marquez F, Landeata M. (2025) Otolith shape variability of labrid fish from Rapa Nui (Easter Island), southeastern Pacific. Fisheries Research, 281:107233

2023 (1)
31. Samayoa AP, Aguirre JD, Delrieu-Trottin E, Liggins L (2023) The origins of marine fishes endemic to subtropical islands of the Southwest Pacific. Journal of Biogeography, 50:1388–1401

2022 (1)
30. Delrieu-Trottin E, Hartmann Salvo H, Saenz Agudelo P, Landeata MF, Pérez Matus A. (2022) DNA reconciles morphology and coloration in the drunk blenny genus Scartichthys (Teleostei: Blenniidae) and provides insights into their evolutionary history. Journal of Fish Biology,100: 507–518

2021 (8)

29. Fricke R, Wickel J, Pinault M, Nicet J-B, Delrieu-Trottin E. (2021) Canthigaster caeruleolineata, a new species of toby (Teleostei: Tetraodontidae) from La Réunion, southwestern Indian Ocean. Cybium, 45: 257-264.

28. Mennesson M, Keith P, Sauri S, Busson F, Delrieu-Trottin E, Limmon G, Sukmono T, Jiran, Risdawati R, Dahruddin H, Hubert N (2021) Eleotris (Teleostei: Eleotridae) from Indonesia with description of three new species within the ‘melanosoma’ neuromast pattern group. Pacific Science, 75:469-495.

27. Liggins L, Kilduff L, Trnski T, Delrieu-Trottin E, Carvajal J, Arranz V, Planes S, Saenz-Agudelo P, Aguirre JD (2021) Morphological and genetic divergence supports peripheral endemism and a recent evolutionary history of Chrysiptera demoiselles in the subtropical South Pacific. Coral Reefs, 41:797–812.

26. Sholihah A, Delrieu-Trottin E, Sukmono T, Dahruddin H, Pouzadoux J, Tilak M-K, Fitriana Y, Agnèse J-F, Condamine FL, Wowor D, Rüber L, Hubert N (2021) Limited dispersal and in situ diversification drive the evolutionary history of Rasborinae fishes in Sundaland. Journal of Biogeography, 48: 2153-2173.

25. Saenz-Agudelo P, Delrieu-Trottin E, DiBattista J, Martinez D, Morales-Gonzáles S, Pontigo F, Ramirez P, Silva A, Soto M, Correa C (2021) Monitoring vertebrate biodiversity of a protected coastal wetland using eDNA metabarcoding. Environmental DNA, 4:77–92.

24. Arida E, Ashari H, Dahruddin H, Fitriana Y, Hamidy A, Haryoko, Irham M, Kadarusman, Riyanto A, Wiantoro S, Zein MSA, Apandi, Krey F, Mulyadi, Sauri S, Saidin, Suparno, Melmambessy EHP, Ohee HL, Saidin, Salamuk A, Supriatna N, Suruwaky AM Warikar EL, Wahyudi, Wikanta H, Yohanita AM, Slembrouck J, Legendre M, Gaucher P, Cochet C, Delrieu-Trottin E, Thébaud C, Mila B, Fouquet A, Borisenko A, Steinke D, Hocdé R, Semiadi G, Pouyaud L, Hubert N (2021) Exploring the vertebrate fauna of Bird’s Head Peninsula (Indonesia, West Papua) through DNA barcodes. Molecular Ecology Resources, 21: 2369-2387.

23. Sholihah A, Delrieu-Trottin E, Condamine F, Wowor D, Rüber L, Pouyaud L, Agnèse JF, Hubert N (2021) Impact of Pleistocene Eustatic Fluctuations on Evolutionary Dynamics in Southeast Asian Biodiversity Hotspots. Systematic Biology, 70(5):940–960.

22. Keith P, Delrieu-Trottin E, Utama IV, Sauri S, Busson F, Nurjirana, Wowor D, Dahruddin H, Hubert N (2021) A new species of Schismatogobius (Teleostei: Gobiidae) from Sulawesi (Indonesia). Cybium, 45(1): 53-58.

2020 (5)
21. Keith P., Mennesson M, Sauri S., Busson F., Delrieu-Trottin E, Limmon G., Nurjirana, Dahruddin H., Hubert N (2020) Giuris (Teleostei: Eleotridae) from Indonesia, with description of a new species. Cybium, 44(4): 317 – 329.

20. Delrieu-Trottin E, Hubert N, Giles EC, Chifflet-Belle P, Suwalski A, Neglia V, Rapu-Edmunds C, Mona S, Saenz-Agudelo P (2020) Coping with Pleistocene climatic fluctuations: demographic responses in remote endemic reef fishes. Molecular Ecology, 29(12): 2218 – 2233.

19. Delrieu-Trottin E, Durand JD, Limmon G, Sukmono T, Kadarusman, Sugeha HY, Chen WJ, Busson F, Borsa P, Dahruddin H, Sauri S, Fitriana Y, Zein MSA, Hocdé R, Pouyaud L, Keith P, Wowor D, Steinke D, Hanner R, Hubert N (2020) DNA-based inventory of the grey Mullets (Actynopterygii: Mugilidae) of the Indo-Australian Archipelago through the iterative use of species delimitation and sequence assignment methods. Evolutionary Applications, 13(6): 1451– 1467.

18. Limmon G, Delrieu-Trottin E, Patikawa J, Rijoly F, Dahruddin H, Busson F, Steinke D, Hubert N (2020) Assessing species diversity of Coral Triangle artisanal fisheries: a DNA barcode reference library for the shore fishes retailed at Ambon harbor (Indonesia). Ecology and Evolution, 10: 3356 – 3366.

17. Sholihah A*, Delrieu-Trottin E, Sukmono T, Dahruddin H, Risdawati R, Elvyra R, Wibowo A, Kusno K, Busson F, Sauri S, Nurhaman U, Zein MSA, Fitriana Y, Utama I, Muchlisin ZA, Agnèse JF, Hanner R, Wowor D, Steinke D, Keith P, Rüber L, Hubert N (2020) Disentangling the taxonomy of the subfamily Rasborinae (Cypriniformes, Danionidae) in Sundaland using DNA barcodes. Scientific Reports 10, 2818

2019 (3)
16. Delrieu-Trottin E, Brosseau-Acquaviva L*, Mona S, Neglia V, Giles EC, Rapu-Edmunds C, Saenz-Agudelo P (2019) Understanding the origin of the most isolated endemic reef fish fauna of the Indo-Pacific: coral reef fishes of Rapa Nui. Journal of Biogeography 46, 723–733.

15. Delrieu-Trottin E, Williams JT, Pitassy D, Driskell A, Hubert N, Viviani J, Cribb T, Espiau B, Galzin R, Kulbicki M, Lison de Loma T, Meyer C, Mourier J, Mou-Tham G, Parravicini V, Plantard P, Sasal P, Siu G, Tolou N, Veuille M, Weigt L, Planes S (2019) A DNA barcode reference library of French Polynesian shore fishes. Scientific Data 6 (1), 114.

14. Hubert N, Lumbantobing D, Sholihah A., Dahruddin H, Delrieu-Trottin E, Busson F, Sauri S, Hadiaty R, Keith P (2019) Revisiting species boundaries and distribution ranges of Nemacheilus spp. (Cypriniformes: Nemacheilidae) and Rasbora spp. (Cypriniformes: Cyprinidae) in Java, Bali and Lombok through DNA barcodes: implications for conservation in a biodiversity hotspot. Conservation Genetics 20 (3), 517–529.

2018 (2)
13. Delrieu-Trottin E, Liggins L, Trnski T, Williams JT, Neglia V, Rapu-Edmunds C, Planes S, Saenz-Agudelo P (2018) Evidence of cryptic species in the blenniid Cirripectes alboapicalis species complex with zoogeographic implications for the South Pacific. ZooKeys, 810, 127-138.
12. Delrieu-Trottin E, Neglia V, Planes S (2018) Origin, genetic diversity and population history for a marine population of a closed lagoon in French Polynesia. Pacific Science, 72, 223-231.

2017 (4)
11. Delrieu-Trottin E, Mona S, Maynard JA, Neglia V, Planes S (2017) Population expansions dominate demographic histories of endemic and widespread Pacific reef fishes. Scientific Reports, 7, 40519.

10. Delrieu-Trottin E, Shen K-N, Chang C-W, Borsa P (2017) One species hypothesis to rule them all: consistency is essential to delimitate species. Journal of Heredity, 108, 334–336 9. 8.

9. Shen K-N, Chang C-W, Delrieu-Trottin E, Borsa P (2017) Lemonpeel (Centropyge flavissima) and yellow (C. heraldi) pygmy angelfishes each consist of two geographically isolated, sibling species. Marine Biodiversity, 47: 831.

8. Siu G, Bacchet P, Bernardi G, Brooks A, Carlot J, Causse R, Claudet J, Clua E, Delrieu-Trottin E, Espiau B, Harmelin-Vivien M, Keith P, Lecchini D, Madi-Moussa R, Parravicini V, Planes S, Ponsonnet C, Randall JE, Sasal P, Taquet M, Williams JT, Galzin R (2017) Shore fishes of French Polynesia. Cybium, 41: 245–278.

2016 (1)
7. Delrieu-Trottin E, Planes S, Williams JT (2016) When endemic coral reef fish species serve as models: endemic mimicry patterns in the Marquesas Islands. Journal of Fish Biology, 89: 1834–1838.

2015 (1)
6. Delrieu-Trottin E, Williams JT, Galzin R, Kulbicki M, Bacchet P, Lison de Loma T, Mou-Tham G, Siu G, Mourier J, Planes S (2015) Shore fishes of the Marquesas Islands, an updated checklist with new records and percentage of endemic species. Check List 11: 1758.

2014 (2)
5. Delrieu-Trottin E, Maynard JA, Planes S (2014) Endemic and widespread coral reef fishes have similar mitochondrial genetic diversity. Proceedings of the Royal Society B 281: 20141068 (IF: 4.637) .

4. Delrieu-Trottin E, Williams JT, Planes S (2014) Macropharyngodon pakoko, a new endemic wrasse from the Marquesas Island (Teleostei, Labridae). Zootaxa 3857: 433–443.

2013 (1)
3. Williams JT, Delrieu-Trottin E, Planes S (2013) Two new fish species of the subfamily Anthiinae (Perciformes, Serranidae) from the Marquesas. Zootaxa 3647: 167–180.

2012 (1)
2. Williams JT, Delrieu-Trottin E, Planes S (2012) A new species of Indo-Pacific fish, Canthigaster criobe, with comments on other Canthigaster (Tetraodontiformes: Tetraodontidae) at the Gambier Archipelago. Zootaxa 3523: 80–88 (IF: 0.972).

2010 (1)
1. Hubert N, Delrieu-Trottin E, Irisson J-O, Meyer C, Planes S (2010) Identifying coral reef fish larvae through DNA barcoding: A test case with the families Acanthuridae and Holocentridae. Molecular Phylogenetics and Evolution 55:1195–1203.

BOOK CHAPTER: (2)
2. Neglia V, Planes S, Delrieu-Trottin E (2020) Le pati (Chanos chanos) de l’atoll de Niau. Bulletin de la Société des Etudes Océaniennes, No. 350-351, 83-90.

1. Planes S, Bacchet P, Delrieu-Trottin E, Kulbicki M, Lison de Loma T, Mou-Tham G, Siu G, Williams JT, Galzin R (2016) Biodiversité terrestre et marine des îles Marquises, Polynésie française. Les poissons côtiers des Marquises. Galzin R., Duron S.D. & Meyer J.-Y. (Eds), Société Française d’Ichtyologie, Paris: 259–286.