Oumar SADIO

Bioécologie marine / Halieutique / Aire Marine Protégée

Ingénieur de Recherche
IRD Dakar

Affectation

Laboratoire LEMAR

Discovery

Liens

Je suis titulaire d’un diplôme d’ingénieur en statistique informatique appliquée, d’un Master en méthodes statistiques et économétriques, d’un Master en écologie et gestion des écosystèmes aquatiques et d’une thèse de Doctorat en Biologie marine de l’Université de Bretagne Occidentale, Brest France en 2015.

Depuis mon intégration à l’IRD en 2001, mes premiers travaux de recherche ont porté sur la biologie et l’écologie des populations de poisons. Mes recherches se sont ensuite orientées vers l’élaboration de plan d’échantillonnage des peuplements de poissons dans une Aire Marine protégée (AMP), la caractérisation de l’état de référence d’une AMP et le suivi biologiques des peuplements de poissons au sein et à proximité des AMPs. Avec les équipes du LEMAR et du CRODT, j’ai mené ces études scientifiques dans l’AMP de Bamboung, l’AMP de Sangomar et le parc national des îles de la Madeleine au Sénégal, et dans l’AMP des Îles d’Urok en Guinée-Bissau. Intéressé par les questions liées aux aspects bio-écologiques dans les AMP, j’ai soutenu une thèse de doctorat à l’UBO qui a porté sur l’ « Efficacité des Aires Marines Protégées comme outil de restauration des ressources marines et de gestion des stocks halieutiques : l’expérience ouest africaine ». Actuellement, je travaille au Sénégal et au Gabon sur les projets listés ci-dessous.

Jacquot, M. P., Nordstrom, M. C., De Wever, L., Ka, R. N., Ka, S., Le Garrec, V., Raffray, J., Sadio, O., Diouf, M., Grall, J., de Morais, L. T., & Le Loc, F. (2023). Human activities and environmental variables drive infaunal community structure and functioning in West African mangroves. ESTUARINE COASTAL AND SHELF SCIENCE, 293, 108481. https://doi.org/10.1016/j.ecss.2023.108481 Cite
Beh, J. H. M., Sadio, O., Mbega, J. D., Tchinga, G., Tsinga, F., Leboulanger, C., Lasram, F. B. R., Tito-de-Morais, L., & Le Loc’h, F. (2023). Spatial and temporal structure of the fish assemblage in Akanda National Park (Gabon), an equatorial mangrove estuary. Regional Studies in Marine Science, 59, 102805. https://doi.org/10.1016/j.rsma.2022.102805 Cite
Simier, M., Sadio, O., Tito-de-Morais, L., & Ecoutin, J.-M. (2023). A review of the ecological knowledge on the species Batrachoides liberiensis in estuarine and lagoon environments of West Africa. African Journal of Ecology. https://doi.org/10.1111/aje.13105 Cite
Touron-Gardic, G., Failler, P., Sadio, O., Deffry, I., & Traore, M.-S. (2022). Les aires marines protégées en Afrique de l’Ouest : bilan et perspectives vis-à-vis des engagements internationaux. Études caribéennes, 53. https://doi.org/10.4000/etudescaribeennes.25281 Cite
Höpker, S. N., Wu, H. C., Lucassen, F., Sadio, O., Brochier, T., Nuworkpor, I. Y., Kasemann, S. A., Merschel, P., & Westphal, H. (2022). Sr Isotope Ratios (87Sr/86Sr) in Water and Fish Otoliths as Estuarine Salinity Tracers: Case Studies from Three NW African Rivers. Estuaries and Coasts. https://doi.org/10.1007/s12237-021-01041-x Cite
Sadio, O., Simier, M., Le Loc’h, F., & Tito-de-Morais, L. (2022). Length–weight relationships of four fish species from Fatala estuary, Guinea, West Africa. Journal of Applied Ichthyology, 38(3), 372–374. https://doi.org/10.1111/jai.14318 Cite
Mbega, J.-D., Sadio, O., Liwouwou, J.-F., Mvé Beh, J.-H., Bamba, I., Eleng Spanian, A., Yedi, M.-L., Cardiec, F., & Le Loc’h, F. (2021). Reproductive biology of the lesser African threadfin Galeoides decadactylus in Gabon, Gulf of Guinea. African Journal of Marine Science, 43(4), 499–509. https://doi.org/10.2989/1814232X.2021.1995493 Cite
Thiaw, M., Gascuel, D., Sadio, O., Ndour, I., Diadhiou, H. D., Kantoussan, J., Faye, S., Thiam, M., Meissa, B., & Brehmer, P. (2021). Efficiency of two contrasted marine protected areas (MPA) in West Africa over a decade of fishing closure. Ocean & Coastal Management, 210, 105655. https://doi.org/10.1016/j.ocecoaman.2021.105655 Cite
Sadio, O., Simier, M., Le Loc’h, F., & Tito-de-Morais, L. (2021). Length-weight relationships of 5 fish species from the Sine Saloum estuary, Senegal, West Africa. Journal of Applied Ichthyology, Early View. https://doi.org/10.1111/jai.14230 Cite
Sadio, O., Le Loc’h, F., Simier, M., & Tito-de-Morais, L. (2021). Length-weight relationships of 20 fish species from the Sine Saloum estuary, Senegal, West Africa. Cybium, 45(2), 155–158. https://doi.org/10.26028/cybium/2021-452-007 Cite
Fall, F., Le Roux, C., Ba, A. M., Fall, D., Bakhoum, N., Faye, M. N., Sadio, O., & Diouf, D. (2021). The leguminous trees Vachellia seyal (Del.) and Prosopis juliflora (Swartz) DC and their association with rhizobial strains from the root-influence zone of the grass Sporobolus robustus Kunth. Symbiosis, 84(1), 61–69. https://doi.org/10.1007/s13199-021-00763-7 Cite
Sadio, O., Simier, M., Le Loc’h, F., & Tito-de-Morais, L. (2021). Length-weight relationships of 19 fish species from two tropical artificial reservoirs (Manantali and Selingue) in Mali, West Africa. Cybium, 45(1), 59–62. https://doi.org/10.26028/cybium/2021-451-007 Cite
Simier, M., Osse, O. J. F., Sadio, O., & Ecoutin, J.-M. (2021). Biology and ecology of sea catfish (Ariidae) of estuarine, lagoon and coastal ecosystems in West Africa. Journal of Fish Biology. https://doi.org/10.1111/jfb.14751 Cite
Failler, P., Touron-Gardic, G., Drakeford, B., Sadio, O., & Traore, M.-S. (2020). Perception of threats and related management measures: The case of 32 marine protected areas in West Africa. Marine Policy, 117, 103936. https://doi.org/10.1016/j.marpol.2020.103936 Cite
Failler, P., Touron-Gardic, G., Sadio, O., & Traore, M.-S. (2020). Perception of natural habitat changes of West African marine protected areas. Ocean & Coastal Management, 187, 105120. https://doi.org/10.1016/j.ocecoaman.2020.105120 Cite
Diogoul, N., Brehmer, P., Perrot, Y., Tiedemann, M., Thiam, A., El Ayoubi, S., Mouget, A., Migayrou, C., Sadio, O., & Sarre, A. (2020). Fine-scale vertical structure of sound-scattering layers over an east border upwelling system and its relationship to pelagic habitat characteristics. Ocean Science, 16(1), 65–81. fdi:010077831. https://doi.org/10.5194/os-16-65-2020 Cite
Weigel, J. Y., Morand, P., Charpin, A., & Sadio, O. (2018). Impact assessment of a marine and coastal protected area on fishing households through a counterfactual approach. A Senegalese case study (West Africa). Ocean & Coastal Management, 155, 113–125. fdi:010072507. https://doi.org/10.1016/j.ocecoaman.2018.02.009 Cite
Sloterdijk, H., Brehmer, P., Sadio, O., Mueller, H., Doering, J., & Ekau, W. (2017). Composition and structure of the larval fish community related to environmental parameters in a tropical estuary impacted by climate change. Estuarine Coastal and Shelf Science, 197, 10–26. fdi:010071068. https://doi.org/10.1016/j.ecss.2017.08.003 Cite
Michaëlla Ebenye, H. C., Taudière, A., Niang, N., Ndiaye, C., Sauve, M., Awana, N. O., Verbeken, M., De Kesel, A., Séne, S., Diédhiou, A. G., Sarda, V., Sadio, O., Cissoko, M., Ndoye, I., Selosse, M.-A., & Bâ, A. M. (2017). Ectomycorrhizal fungi are shared between seedlings and adults in a monodominant Gilbertiodendron dewevrei rain forest in Cameroon. Biotropica, 49(2), 256–267. https://doi.org/10.1111/btp.12415 Cite
Ba, K., Thiaw, M., Lazar, N., Sarr, A., Brochier, T., Ndiaye, I., Faye, A., Sadio, O., Panfili, J., Thiaw, O. T., & Brehmer, P. (2016). Resilience of Key Biological Parameters of the Senegalese Flat Sardinella to Overfishing and Climate Change. Plos One, 11(6), e0156143. fdi:010067592. https://doi.org/10.1371/journal.pone.0156143 Cite
Decru, E., Vreven, E., Sadio, O., & Snoeks, J. (2016). Brycinus epuluensis, a new species from the Epulu River (Congo basin), Africa (Teleostei: Alestidae). Ichthyological Exploration of Freshwaters, 27(1), 49–60. Cite
Sadio, O., Simier, M., Ecoutin, J.-M., Raffray, J., Lae, R., & Tito-de-Morais, L. (2015). Effect of a marine protected area on tropical estuarine fish assemblages: Comparison between protected and unprotected sites in Senegal. Ocean & Coastal Management, 116, 257–269. fdi:010065772. https://doi.org/10.1016/j.ocecoaman.2015.08.004 Cite
Sene, S., Avril, R., Chaintreuil, C., Geoffroy, A., Ndiaye, C., Diedhiou, A. G., Sadio, O., Courtecuisse, R., Sylla, S. N., Selosse, M.-A., & Ba, A. (2015). Ectomycorrhizal fungal communities of Coccoloba uvifera (L.) L. mature trees and seedlings in the neotropical coastal forests of Guadeloupe (Lesser Antilles). Mycorrhiza, 25(7), 547–559. fdi:010065286. https://doi.org/10.1007/s00572-015-0633-8 Cite
Wade, T. K., Le Quere, A., Laguerre, G., N’Zoue, A., Ndione, J.-A., dorego, F., Sadio, O., Ndoye, I., & Neyra, M. (2014). Eco-geographical diversity of cowpea bradyrhizobia in Senegal is marked by dominance of two genetic types. Systematic and Applied Microbiology, 37(2), 129–139. https://doi.org/10.1016/j.syapm.2013.10.002 Cite
Ecoutin, J.-M., Simier, M., Albaret, J.-J., Laë, R., Raffray, J., Sadio, O., & Tito-de-Morais, L. (2014). Ecological field experiment of short-term effects of fishing ban on fish assemblages in a tropical estuarine MPA. Ocean & Coastal Management, 100, 74–85. https://doi.org/10.1016/j.ocecoaman.2014.08.009 Cite
Ndoye, A. L., Sadio, O., & Diouf, D. (2011). Genetic variation of Casuarina equisetifolia subsp equisetifolia and C. equisetifolia subsp incana populations on the northern coast of Senegal. Genetics and Molecular Research, 10(1), 36–46. https://doi.org/10.4238/vol10-1gmr986 Cite
Faye, D., Tito-de-Morais, L., Raffray, J., Sadio, O., Thiaw, O. T., & Le Loc’h, F. (2011). Structure and seasonal variability of fish food webs in an estuarine tropical marine protected area (Senegal): Evidence from stable isotope analysis. Estuarine, Coastal and Shelf Science, 92(4), 607–617. http://www.sciencedirect.com/science/article/pii/S027277141100076X Cite