Please use this identifier to cite or link to this item: http://hdl.handle.net/10553/47539
Title: Insights into the diet of beaked whales from the atypical mass stranding in the Canary Islands in September 2002
Authors: Santos Vázquez, María Begoña
Martín Martel, Vidal
Arbelo Hernández, Manuel Antonio 
Fernández Rodríguez, Antonio Jesús 
Pierce, Graham J.
UNESCO Clasification: 310906 Nutrición
240119 Zoología marina
240118 Mamíferos
Keywords: Ziphius cavirostris
Prey
Diet
Beaked whales
Mass stranding, et al
Issue Date: 2007
Publisher: 0025-3154
Journal: Journal of the Marine Biological Association of the United Kingdom 
Abstract: Stomach contents were analysed from three species of beaked whales which mass-stranded shortly after a naval exercise conducted in the Canary Islands in September 2002. Animals from such mass strandings often contains freshly ingested food in their stomachs and can provide a more reliable guide to feeding habits than other strandings. Food remain recovered from seven Cuvier's beaked whales (Ziphius cavirostris) consisted mainly of oceanic cephalopods, the most numerous being Taonius pavo, Histioleuthis sp., Mastigoteuthis schmidti and Octopoteuthis sicula. Many of the cephalopod species found in the diet appear to undertake daily vertical migrations, being found in shallower waters during the night and moving to deeper waters during the day. Single specimens of Blainville's beaked whale (Mesoplodon densirostris) and Gervais' beaked whale (Mesoplodon europaeus) had eaten both fish and cephalopod prey. The most numerous prey remains belonged to gadid fish and viperfish (Chauliodus sp.) respectively. These results are consistent with the limited published data on diet in these species, with Mesoplodon species having a relatively higher proportion of fish in the diet whereas Ziphius specialises on cephalopods.
URI: http://hdl.handle.net/10553/47539
ISSN: 0025-3154
DOI: 10.1017/S0025315407054380
Source: Journal Of The Marine Biological Association Of The United Kingdom [ISSN 0025-3154], v. 87 (1), p. 243-251
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