Samarra, FIP Vighi, M Aguilar, A and Víkingsson, GA 2017. Intra-population variation in isotopic niche in herring-eating killer whales off Iceland. Marine Ecology Progress Series, Vol. 564, p. 199.
Wellard, Rebecca Lightbody, Keith Fouda, Leila Blewitt, Michelle Riggs, David Erbe, Christine and Duplisea, Daniel E. 2016. Killer Whale (Orcinus orca) Predation on Beaked Whales (Mesoplodon spp.) in the Bremer Sub-Basin, Western Australia. PLOS ONE, Vol. 11, Issue. 12, p. e0166670.
Hupman, K Visser, IN Martinez, E and Stockin, KA 2015. Using platforms of opportunity to determine the occurrence and group characteristics of orca (Orcinus orca) in the Hauraki Gulf, New Zealand. New Zealand Journal of Marine and Freshwater Research, Vol. 49, Issue. 1, p. 132.
SEGNIAGBETO, Gabriel H. VAN WAEREBEEK, Koen BOWESSIDJAOU, Joseph E. KETOH, Koffivi KPATCHA, Takouda K. OKOUMASSOU, Kotchikpa and AHOEDO, Kossi 2014. Annotated checklist and fisheries interactions of cetaceans in Togo, with evidence of Antarctic minke whale in the Gulf of Guinea. Integrative Zoology, Vol. 9, Issue. 1, p. 1.
Foote, Andrew D. Kuningas, Sanna and Samarra, Filipa I.P. 2014. North Atlantic killer whale research; past, present and future. Journal of the Marine Biological Association of the United Kingdom, Vol. 94, Issue. 06, p. 1245.
Elwen, Simon H. Tonachella, Nicoló Barendse, Jaco Collins, Tim Best, Peter B. Rosenbaum, Howard C. Leeney, Ruth H. and Gridley, Tess 2014. Humpback whales off Namibia: occurrence, seasonality, and a regional comparison of photographic catalogs and scarring. Journal of Mammalogy, Vol. 95, Issue. 5, p. 1064.
Bolaños-Jiménez, Jaime Mignucci-Giannoni, Antonio A. Blumenthal, Janice Bogomolni, Andrea Casas, José Julio Henríquez, Angiolina Iñíguez Bessega, Miguel Khan, Jalaludin Landrau-Giovannetti, Nelmarie Rinaldi, Caroline Rinaldi, Renato Rodríguez-Ferrer, Grisel Sutty, Lesley Ward, Nathalie and Luksenburg, Jolanda Andrea 2014. Distribution, feeding habits and morphology of killer whalesOrcinus orcain the Caribbean Sea. Mammal Review, Vol. 44, Issue. 3-4, p. 177.
Weir, Caroline R. Collins, Tim Cross, Terry Gill, Alison Elwen, Simon Unwin, Michael and Parnell, Richard J. 2013. False killer whale (Pseudorca crassidens) sightings in continental shelf habitat off Gabon and Côte d'Ivoire (Africa). Marine Biodiversity Records, Vol. 6,
Pereira, A Martinho, F Brito, C and Carvalho, I 2013. Bottlenose dolphinTursiops truncatusat São Tomé Island (São Tomé and Príncipe) — relative abundance, site fidelity and social structure. African Journal of Marine Science, Vol. 35, Issue. 4, p. 501.
de Bruyn, P. J. N. Tosh, Cheryl A. and Terauds, Aleks 2013. Killer whale ecotypes: is there a global model?. Biological Reviews, Vol. 88, Issue. 1, p. 62.
Ryan, Conor and Holmes, J.M.C. 2012. Killer whale Orcinus orca predation on sunfish Mola mola. Marine Biodiversity Records, Vol. 5,
Elwen, Simon H. and Leeney, Ruth H. 2011. Interactions between Leatherback Turtles and Killer Whales in Namibian Waters, Including Possible Predation. South African Journal of Wildlife Research, Vol. 41, Issue. 2, p. 205.
Weir, CR 2011. Distribution and seasonality of cetaceans in tropical waters between Angola and the Gulf of Guinea. African Journal of Marine Science, Vol. 33, Issue. 1, p. 1.
Carvalho, I Brito, C dos Santos, ME and Rosenbaum, HC 2011. The waters of São Tomé: a calving ground for West African humpback whales?. African Journal of Marine Science, Vol. 33, Issue. 1, p. 91.
Evans, Peter G.H. Pierce, Graham J. and Panigada, Simone 2010. Climate change and marine mammals. Journal of the Marine Biological Association of the United Kingdom, Vol. 90, Issue. 08, p. 1483.
Killer whales Orcinus orca are considered to be relatively uncommon in tropical waters. Few sightings have been reported from the west coast of Africa due to a paucity of survey coverage. We present data on 32 killer sightings from tropical waters off Angola (N = 18), Gabon (N = 7), São Tomé (N = 6) and Cameroon (N = 1), comprising a combination of dedicated survey sightings (N = 21) and reliable anecdotal records (n = 11). Killer whales were reported from coastal waters, the shelf edge and deep, oceanic areas. Sightings indicate a probable year-round occurrence of killer whales within the region. Mean group size was 5.6 animals. There was no difference in group size between sightings in waters >200 m deep and those on the continental shelf. No photo-identification matches were found between Angola, Gabon and São Tomé. Re-sightings of two individuals occurred annually in São Tomé during 2002–2004. Killer whales had external appearance consistent with the Type A nominate species form. Antagonistic encounters were recorded between killer whales and humpback whales Megaptera novaeangliae off Angola, Gabon and Cameroon, and with sperm whales Physeter macrocephalus off Angola. Predation on ocean sunfish Mola mola was recorded in São Tomé, and possible predation on sharks was recorded twice in Gabon.
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