The autumn occurrence and spatial distribution of cetaceans in the waters of Mauritania during a geophysical survey in 2012

Russell, Grace; Sánchez-Cabanes, Alicia; Nimak-Wood, Maja

doi:10.2989/1814232x.2018.1531786

Cited by 3 publications

(13 citation statements)

References 54 publications

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“…Djiba et al (2015) found that 28.7% of all cetacean sightings (32.7% if including 'probable Delphinus') in the CCLME were of this species and these represented 71.3% (76.5%) of all individuals of Cetacea seen. Russell et al (2018) reported seven sightings (∑= 760 individuals) of a longbeaked form of common dolphin. Specimens.…”

Section: Delphinus Delphismentioning

confidence: 99%

“…Sightings. Russell et al (2018) observed one pod of 392 individuals of S. longirostris during a geophysical survey in 2012. reportedly sighted a group of 50 individuals north of Cap Vert, Senegal. None of these sightings seem to be supported.…”

Section: Stenella Clymene (Gray 1850)mentioning

confidence: 99%

“…A group of 14 dolphins identified as Stenella attenuata was observed from R/V Al Awam at 19°27'36" N, 17°15' W on 12 September 2015 but no photos were taken (Camphuysen et al, 2015). Russell et al (2018) reported 59 individuals from a geophysical survey in 2012. Stenella attenuata has a preference for tropical oceanic waters and may largely avoid the cooler, upwelling-modified neritic habitat of the CCLME, including off Mauritania (Djiba et al, 2015).…”

Section: Stenella Clymene (Gray 1850)mentioning

confidence: 99%

“…This rich and biodiverse ecosystem created by cool upwelling supports one of the biggest fisheries in the world (e.g., Zeeberg et al, 2006). The evident importance of this region for cetaceans and seabirds has been noted by numerous authors (Capone and Hutchins, 2013;Baines and Reichelt, 2014;Camphuysen et al, 2015;Djiba et al, 2015;Russell et al, 2018).…”

Section: Introductionmentioning

confidence: 96%

“…Moreover, the handful of published studies, based mostly on strandings, are 20-30 years old (e.g., Maigret, 1980;1981;Smeenk et al, 1992;Robineau and Vély, 1993;Robineau et al, 1994;Vély et al, 1995). More recently, sightings data opportunistic to research of fisheries resources (Zeeberg et al, 2006;Djiba et al, 2015), a seismic survey (Russell et al, 2018) and several dedicated surveys for marine birds and mammals (Tulp and Leopold, 2004;Van Waerebeek and Jiddou, 2006;Camphuysen et al, 2012;2015; were added. Observations at sea and monitoring of strandings were conducted between 2012 and 2016 as part of a major project Biodiversité-Gaz-Pétrole (BGP) in collaboration with the KOSMOS oil company, resulting in a significant amount of new information on cetacean presence in Mauritanian coastal waters.…”

Section: Introductionmentioning

confidence: 99%

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The Cetaceans of Mauritania, West Africa: a concise zoogeographical review with two new species records

Samba Bilal,

Wagne,

Wagué

et al. 2023

JAD

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The exact number of cetacean species present in Mauritanian waters is unknown. A first overview was published only in 1980, the latest in 1998. Yet, published information remains modest compared to, e.g., neighboring Senegal (first review in 1947). The complex oceanography of Mauritanian waters permits a mixed assemblage of cetacean fauna, with the distribution of both cool temperate and (sub)tropical species. In this review, we use our own observations from strandings, bycatches and vessel-based surveys, as well as published and grey literature, to support an updated inventory of cetaceans of Mauritania. This checklist includes two new authenticated species records: Kogia sima (Owen) (Kogiidae) and Lagenodelphis hosei Fraser (Delphinidae). Stenella coeruleoalba (Meyen) (Delphinidae) is verifiably documented for the first time. Further, a first specimen record of Stenella longirostris (Gray) (Delphinidae) is described, as well as second specimen records of Mesoplodon europaeus (Gervais) (Ziphiidae), Steno bredanensis (G. Cuvier) (Delphinidae) and Megaptera novaeangliae (Borowski) (Balaenopteridae). Of 30 reported species, 27 (of six families) are fully supported, while three species lack (accessible) voucher material though probably (P) occur in Mauritania: Balaenopteridae: Megaptera novaeangliae, Balaenoptera musculus (Linnaeus), B. borealis Lesson, B. omurai Wada, Oishi and Yamada, B. acutorostrata Lacépède, B. physalus (Linnaeus) and B. brydei Olsen (P); Physeteridae: Physeter macrocephalus Linnaeus; Kogiidae: Kogia sima (Owen) and K. breviceps (de Blainville); Delphinidae: Sousa teuszii (Kükenthal), Tursiops truncatus (Montague), Delphinus delphis Linnaeus, Stenella frontalis (G. Cuvier), Stenella attenuata (Gray), Stenella coeruleoalba (Meyen), Stenella longirostris (Gray), Stenella clymene (Gray), Steno bredanensis (G. Cuvier), Peponocephala electra (Gray) (P), Lagenodelphis hosei (Fraser), Grampus griseus (G. Cuvier), Globicephala macrorhynchus Gray, Globicephala melas (Traill) (P), Orcinus orca (Linnaeus) and Pseudorca crassidens (Owen); Ziphiidae: Ziphius cavirostris G. Cuvier, Mesoplodon europaeus and Mesoplodon densirostris (de Blainville); Phocoenidae: Phocoena phocoena (Linnaeus). Finally, we report the first case for continental northwest Africa of tattoo skin disease in a stranded D. delphis.

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Section: Delphinus Delphismentioning

confidence: 99%

Section: Stenella Clymene (Gray 1850)mentioning

confidence: 99%

Section: Stenella Clymene (Gray 1850)mentioning

confidence: 99%

Section: Introductionmentioning

confidence: 96%

Section: Introductionmentioning

confidence: 99%

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The Cetaceans of Mauritania, West Africa: a concise zoogeographical review with two new species records

Samba Bilal,

Wagne,

Wagué

et al. 2023

JAD

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Fine-tuning the isotopic niche of a marine mammal community through a multi-element approach and variable spatial scales

Cani,

Cardona,

Aguilar

et al. 2024

Estuarine, Coastal and Shelf Science

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Cetaceans of north-western continental Africa (Morocco to Liberia): diversity and distribution

Correia,

Mihova,

Gil

et al. 2024

Front. Mar. Sci.

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The north-western coast of Africa is one of the most productive marine systems in the world, where a high diversity of cetacean species has been recorded. However, management of human activities that impact cetacean populations in the area is inadequate, in part due to poor knowledge on cetacean occurrence and the lack of systematic surveys. We reviewed existing knowledge on cetacean distribution between Morocco and Liberia and analyzed the spatial and temporal distribution of records, as well as species occurrence, further discussing the reported distribution ranges. The systematic literature review included 39 sources reporting on 36 species in the area, with a total of 2241 sightings and 2178 non-sighting records. Delphinus delphis (common dolphin) and Tursiops truncatus (bottlenose dolphin) are the two species with the highest number of sources reporting on them. This review reveals a spatially and temporally heterogeneous coverage of the area in the literature and published data on cetacean occurrence. In summary, although most of the compiled sources are recently published (2011-2020), the majority of records are from prior to 2000. In several range states, especially south of Senegal, little information is available. Therefore, the available information is unlikely to represent the current status of cetacean communities in the region. It is essential to fill knowledge gaps by increasing the collection of cetacean distribution data in the area, in order to support effective conservation measures and ensure sustainable utilization of the living marine resources in this rapidly developing region.

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The autumn occurrence and spatial distribution of cetaceans in the waters of Mauritania during a geophysical survey in 2012

Cited by 3 publications

References 54 publications

The Cetaceans of Mauritania, West Africa: a concise zoogeographical review with two new species records

The Cetaceans of Mauritania, West Africa: a concise zoogeographical review with two new species records

Fine-tuning the isotopic niche of a marine mammal community through a multi-element approach and variable spatial scales

Cetaceans of north-western continental Africa (Morocco to Liberia): diversity and distribution

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