International or regional conventions

Guinea-Bissau is a member/signatory to the following international and regional Conventions related to cetacean conservation:

Confirmed observations

“The occurrence of the Atlantic humpback dolphin off Guinea-Bissau was recently reviewed by Leeney et al. (2015). The species is widely distributed from the Canal de Jeta and the Canal de Pecixe in the north, to the Rio Cacine in the south. Records are most numerous along the north coast of the outer Rio Gêba, around the island of Arelas (located south of the Rio Gêba mouth), around the western tip of Bolama and in the Rio Grande de Buba (Figure 3D). It also occurs in the Arquipélago dos Bijagós, especially around the eastern islands of Roxa, Bubaque, Galhinas and Maio. It has been recorded 30 km upstream from the Rio Grande de Buba mouth, and 20 km upstream from the Rio Cacine mouth.”

Threats and trends

No abundance estimates or detailed information on threats are available for this country.


Report a sighting or stranding by emailing info@sousateuszii.org or contacting one of the country focal points below.

Contact person

Aissa Regalla


Relevant country-specific references

  1. Collins, T., 2015. Re-assessment of the Conservation Status of the Atlantic Humpback Dolphin (Sousa teuszii), Using the IUCN Red List Criteria. In Advances in marine biology Volume 72, pp. 47-77). Academic Press.
  2. Fulling, G. L., J. Foster, D. C. Fertl, and T. D. Fagin. 2008. Pilot survey of coastal small cetaceans in the waters of Guinea-Bissau, Prepared for Truk Bissau.
  3. Leeney, R. H., C. R. Weir, P. Campredon, A. Regalla, and J. Foster. 2016. Occurrence of Atlantic humpback (Sousa teuszii ) and bottlenose (Tursiops truncatus) dolphins in the coastal waters of Guinea-Bissau, with an updated cetacean species checklist. Journal of the Marine Biological Association of the United Kingdom 96(Special Issue 04):933-941. doi: doi:10.1017/S0025315415000661
  4. Sequeira, M., and F. Reiner. 1992. First record of an Atlantic humpback dolphin Sousa teuszii Kukenthal 1892 Cetacea Delphinidae in Guinea-Bissau. Mammalia 56:311-313.
  5. Spaans, B. 1990. Dolphins in the coastal area of Guiné Bissau. Lutra 33:126-133.
  6. Van Waerebeek, K., E. Ndiaye, A. Djiba, M. Diallo, P. Murphy, A. Jallow, A. Camara, N. P., and P. Tours. 2000. A survey of the conservation status of cetaceans in Senegal, the Gambia and Guinea-Bissau Convention on the conservation of Migratory Species:1 -80.
  7. Van Waerebeek, K., E. Ndiaye, A. Djiba, D. Mamadou, P. Murphy, A. Jallow, A. Camara, P. Ndiaye, and P. Tous. 2003. A Survey of the Conservation Status of Cetaceans in Senegal, the Gambia and Guinea-Bissau, WAFCET-I Report, UNEP/CMS. Bonn, Germany.
  8. Van Waerebeek, K., Barnett, L., Camara, A., Cham, A., Diallo, M., Djiba, A., Jallow, A.O., Ndiaye, E., Bilal, A.O. and Bamy, I.L., 2004. Distribution, status, and biology of the Atlantic humpback dolphin, Sousa teuszii (Kukenthal, 1892). Aquatic Mammals, 30(1), pp.56-83.
  9. Weir, C. R., and T. Collins. 2015. A Review of the Geographical Distribution and Habitat of the Atlantic Humpback Dolphin (Sousa teuszii ). In: T. A. Jefferson and B. C. Curry, editors, Advances in Marine Biology Volume 72. Advances in Marine Biology No. Volume 72. Academic Press. p. 79-117.