Cetaceans observed in the coastal waters of Namibe Province, Angola, during summer and winter 2008

Weir, Caroline R.

doi:10.1017/s1755267210000230

Cited by 10 publications

(14 citation statements)

References 14 publications

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“…Tables 7 Table 1. Nomenclature of the cetacean species occurring within the southern African 8 subregion (from Best 2007;Weir 2010a) and the number of papers referring to those 9 species or groups of species. Species groupings are explained in Table 2 example Best (1975), Best & Kato (1996), Butterworth & Best (1994), Kiszka et al (2010).…”

Section: Discussionmentioning

confidence: 99%

“…While the nature of these surveys prohibits calculations of absolute abundance or in-depth studies on behaviour or biology, they have provided information on spatial distribution, seasonality and group sizes in poorly-studied oceanic waters. A dedicated cetacean survey off southern Angola also produced information on the distribution and behaviour of Bryde's whales in coastal areas (Weir, 2010a).…”

Section: The Eastern Tropical Atlantic Regionmentioning

confidence: 99%

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Cetacean research in the southern African subregion: a review of previous studies and current knowledge

Elwen

Findlay

Kiszka

et al. 2011

African Journal of Marine Science

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Cetacean research, in terms of the number of papers, research groups and areas for which data are available has expanded considerably in the Southern African Subregion (SAS) in the last decade, especially in the South West Indian Ocean (SWIO). Here we review cetacean research in the SAS from the 1800s to the present to provide an overview of findings, investigate trends and identify knowledge gaps. Data are presented separately for large whales (those subject to commercial whaling) and smaller cetaceans and are separated by era and ocean basin. Over 550 peer-reviewed papers and books were identified relating to research on cetaceans within the subregion. More than half (284) have been produced since 1990 and 193 relate specifically to South African waters. The most studied species are those that are most accessible due to their coastal distributions

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Section: Discussionmentioning

confidence: 99%

Section: The Eastern Tropical Atlantic Regionmentioning

confidence: 99%

Cetacean research in the southern African subregion: a review of previous studies and current knowledge

Elwen

Findlay

Kiszka

et al. 2011

African Journal of Marine Science

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“…That work provided the first comprehensive assessment of an Atlantic humpback dolphin population, collecting information on abundance (via photo-identification), distribution, movements, seasonality and behaviour (including vocal behaviour: Weir 2010b). The study also produced information on several other cetacean species in coastal waters (Weir 2010c).…”

Section: Targeted At-sea Cetacean Surveysmentioning

confidence: 99%

“…Best (1996Best ( , 2001) described a seasonal migration of the offshore Bryde's whale population in and out of Angolan waters. However, sightings have been reported year-round (Weir 2007(Weir , 2010c(Weir , 2011a, although seasonal fluctuations occur. For example, Weir (2010c) only recorded Bryde's whales during the summer in coastal Namibe Province, while most sightings from northern Angola are in winter and spring (August and September; Weir 2011a, b).…”

Section: Baleen Whalesmentioning

confidence: 99%

“…Acoustic monitoring off northern Angola (6°S) during 2008 recorded humpback whale singing activity, which was also considered indicative of breeding behaviour (Cerchio et al 2014). Numerous sightings of humpback whales have been recorded during sighting surveys, including in southern Angola (Axelsen et al 2004;Dyer 2007;Weir 2010c), central regions (Krakstad et al 2003;Axelsen et al 2005;Roux et al 2007;Michalsen et al 2015), and the northern areas off Soyo and Cabinda (Weir 2007(Weir , 2011a. The highest densities occur over the shelf, but sightings also occur far offshore (to at least 4000 m depth: Weir 2011b).…”

Section: Baleen Whalesmentioning

confidence: 99%

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The Cetaceans (Whales and Dolphins) of Angola

Weir¹

2019

Biodiversity of Angola

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The history of whale and dolphin (cetacean) research in Angolan waters is scant. Prior to the 2000s it primarily consisted of information from historical (1700s to the 1920s) and modern (1920s-1970s) whaling catches, from which baleen whales and the sperm whale were confirmed. Very few species were added to Angola's cetacean checklist between the whaling era and the 2000s. However, observations since 2003 have confirmed Angola as a range state for at least 28 species, comprising seven baleen whales, two sperm whale species, at least two beaked whales, and at least 17 delphinids. There is potential for approximately seven more species to be identified in the region based on their known worldwide distributions. Angola has one of the most diverse cetacean faunas in Africa, and indeed worldwide, due to its varied seabed topography and transitional ocean climate which supports both (sub)tropical species and those associated with the Benguela Current. While no cetacean species are truly endemic to Angola, the country is one of few confirmed range states for the Critically Endangered Atlantic humpback dolphin and the Benguela-endemic Heaviside's dolphin. Those species, together with endangered baleen whales and breeding populations of sperm and humpback whales, are highlighted as conservation priorities.

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Bryde’s Whale Balaenoptera edeni Anderson, 1878

Freitas

Penry

2021

Handbook of the Mammals of Europe

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Cetaceans observed in the coastal waters of Namibe Province, Angola, during summer and winter 2008

Cited by 10 publications

References 14 publications

Cetacean research in the southern African subregion: a review of previous studies and current knowledge

Cetacean research in the southern African subregion: a review of previous studies and current knowledge

The Cetaceans (Whales and Dolphins) of Angola

Bryde’s Whale Balaenoptera edeni Anderson, 1878

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