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Journal Article

Article de revue

The Cetaceans of Ghana, a Validated Faunal Checklist  [2010]

Van Waerebeek, K; Ofori-Danson, PK; Debrah, J;

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The cetaceans of Ghana and the Gulf of Guinea have, until recently, remained unstudied. Periodical monitoring of artisanal fisheries for bycatches in seven Ghanaian artisanal fishing ports and landing sites over 1996-2004 has provided photographic and specimen evidence to validate occurrence of 18 species (17 odontocetes, 1 mysticete) in a tropical, predominantly pelagic cetacean fauna. At least nine species and subspecies had not previously been documented for Ghana (with asterisk), and four species are authenticated for the first time in the Gulf of Guinea (double asterisk), i.e. Tursiops truncatus, Stenella clymene, S. longirostris longirostris*, S. attenuata, S. frontalis, Delphinus capensis capensis*, Lagenodelphis hosei, Steno bredanensis, Grampus griseus, Peponocephala electra*, Feresa attenuata**, Globicephala macrorhynchus, Orcinus orca*, Pseudorca crassidens*, Kogia sima**, Physetermacrocephalus*, Ziphius cavirostris** and Megaptera novaeangliae . Also, the limited published information on distribution, natural history and conservation status is critically reviewed for each taxon. Indications are that most species encountered off Ghana may be widely distributed in the Gulf of Guinea, most notably the long-beaked common dolphin. The vulnerable Atlantic humpback dolphin, Sousa teuszii, remains unrecorded in Ghana and neighbouring nations despite apparently suitable coastal habitat. It is suggested that localized extinction may be blamed, possibly t
he result of accumulative bycatches and disturbance. A number of other cetacean species not yet encountered could occasionally occur in Ghana’s waters, e.g. Balaenoptera brydei, Mesoplodon densirostris, Kogia breviceps, Stenella coeruleoalba and Delphinus delphis
(Revue
West African Journal of Applied Ecology
ISSN : 0855-4307

Information bibliographique

Langue:
English
Type:
Journal Article
Sur AGRIS depuis:
2018
Volume:
15
Numéro:
1
Page initiale:
49428
Page finale:
49428
Editeur:
Ecological Laboratory Unit, University of Ghana
Tous les titres:
"The Cetaceans of Ghana, a Validated Faunal Checklist"@eng
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Information bibliographique

Langue:
English
Type:
Journal Article
Sur AGRIS depuis:
2018
Volume:
15
Numéro:
1
Page initiale:
49428
Page finale:
49428
Editeur:
Ecological Laboratory Unit, University of Ghana
Tous les titres:
"The Cetaceans of Ghana, a Validated Faunal Checklist"@eng