The IBAP and its international scientific partners are committed to find out more about the ecology and the threats to sea turtles in Guinea-Bissau, and to communicate research results to the local stakeholders, general public and decision-makers.

Current studies by MARE - ISPA, University of Exeter and the Faculty of Sciences of the University of Lisbon address the migratory behavior of sea turtles, their origins and recruitment to coastal areas, the prevalence of fibropapillomatosis, the impacts of climate change on nesting beaches, the factors that influence nesting the success, among others.

See below a list of scientific outputs related to sea turtles of Guinea-Bissau.

Green turtle with SPOT tag from Wildlife Computers

Example of green turtle migrations

Green turtle with arribada_i tag

Peer-reviewed articles

Madeira FM, Patrício AR, Indjai B, Barbosa C, Regalla A, Catry P, Rebelo R (2020) High Number of Healthy Albino Green Turtles from Africa’s Largest Population. Marine Turtle Newsletter 160: 19-22

Patrício AR, Varela MR, Barbosa C, Broderick AC, Catry P, Hawkes LA, Regalla A, Godley, BJ (2019) Climate change resilience of a globally important sea turtle nesting population. Global Change Biology 25: 2​


Patrício AR, Varela MR, Barbosa C, Broderick AC, Airaud MBF, Godley BJ, Regalla A, Tilley D, Catry P (2018) Nest site selection repeatability of green turtles, Chelonia mydas, and consequences for offspring. Animal Behaviour 139: 91-102


Patrício AR, Marques A, Barbosa C, Broderick AC, Godley BJ, Hawkes L, Rebelo R, Regala A, Catry P (2017) Balanced primary sex ratios and resilience to climate change in major marine turtle population. Marine Ecology Progress Series 577: 189-203


Patrício AR, Formia A, Barbosa C, Broderick AC, Bruford M, Carreras C, Catry P, Ciofi C, Regala A, Godley BJ (2017) Dispersal of green turtles from Africa’s largest rookery assessed through genetic markers. Marine Ecology Progress Series 569: 215–225

Rebelo R, Barbosa C, Granadeiro J, Indjai B, Novais B, Rosa G, Catry P (2011) Can leftovers from predators be reliably used to monitor marine turtle hatchling sex-ratios? The implications of prey selection by ghost crabs. Mar Biol 159: 613−620

Godley BJ, Barbosa C, Bruford M, Broderick AC, Catry P, Coyne MS, Formia A, Hays GC, Witt MJ (2010) Unravelling migratory connectivity in marine turtles using multiple methods. Journal of Applied Ecology 47: 769-778

Catry P, Barbosa C, Paris B, Indjai B, Almeida A (2009) Status, ecology, and conservation of sea turtles in Guinea‐Bissau. Chelonian Conservation and Biology 8: 150–160


Catry P, Barbosa C, Indjai B, Almeida A, Godley BJ, Vié JC (2002) First census of the green turtle at Poilão, Bijagós Archipelago,Guinea‐Bissau: The most important nesting colony on the Atlantic coast of Africa. Oryx 36: 400–403

Barbosa C, Broderick A, Catry P (1998) Marine turtles in the Orango National Park (Bijagós Archipelago - Guinea-Bissau). Marine Turtle Newsletter 81: 6-7.

Research Thesis

Books and book chapters

Barbosa C, Patrício AR, Ferreira Airaud MB, Sampaio M, Catry P (2018) Tartarugas Marinhas, in Catry P, Regalla A (Eds). Parque Nacional Marinho João Vieira e Poilão: Biodiversidade e Conservação. IBAP – Instituto da Biodiversidade e das Áreas Protegidas.


Catry P, Regalla A (Eds). 2018. Parque Nacional Marinho João Vieira e Poilão: Biodiversidade e Conservação. IBAP – Instituto da Biodiversidade e das Áreas Protegidas, Bissau.


Catry P, Barbosa C, Indjai B (2010) Tartarugas Marinhas da Guiné-Bissau. Estatuto, Biologia e Conservação. Instituto da Biodiversidade e das Áreas Protegidas, Bissau.





Address: Av. Dom Settimio Arturro Ferrazzetta, CP 70, Bissau, Guiné-Bissau


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