Two live sightings of Sowerby's beaked whale (Mesoplodon bidens) from the western Mediterranean (Tyrrhenian Sea).
Articolo
Data di Pubblicazione:
2017
Citazione:
Two live sightings of Sowerby's beaked whale (Mesoplodon bidens) from the western Mediterranean (Tyrrhenian Sea) / Bittau, L., Leone, M., Gannier, A., Gannier, A., Manconi, R.. - In: JOURNAL OF THE MARINE BIOLOGICAL ASSOCIATION OF THE UK. - ISSN 1469-7769. - (2017), pp. 1-7. [10.1017/S0025315416001892]
Abstract:
Sowerby’s beaked whale (Mesoplodon bidens) was previously known in the Mediterranean Sea from a single live stranding of
two individuals in the French Riviera. We report here on two live sightings in the western Mediterranean, central-western
Tyrrhenian Sea off eastern Corsica (Montecristo Trough) and off eastern Sardinia (Caprera Canyon) in 2010 and 2012,
respectively. In both cases single individuals, possibly the same individual, occurred within groups of Cuvier’s beaked
whales (Ziphius cavirostris) suggesting inter-specific interactions. Based on our close observations of mixed-species groups
of Sowerby’s and Cuvier’s beaked whales, we hypothesize that some previous long-distance sightings of beaked whales in
the Mediterranean may not be reliably attributed to Z. cavirostris. The present sightings and previous live stranding indicate
that the western Mediterranean Sea is the easternmost marginal area of M. bidens within the North Atlantic geographic
range. Notes on behaviour are also provided.
Keywords:
two individuals in the French Riviera. We report here on two live sightings in the western Mediterranean, central-western
Tyrrhenian Sea off eastern Corsica (Montecristo Trough) and off eastern Sardinia (Caprera Canyon) in 2010 and 2012,
respectively. In both cases single individuals, possibly the same individual, occurred within groups of Cuvier’s beaked
whales (Ziphius cavirostris) suggesting inter-specific interactions. Based on our close observations of mixed-species groups
of Sowerby’s and Cuvier’s beaked whales, we hypothesize that some previous long-distance sightings of beaked whales in
the Mediterranean may not be reliably attributed to Z. cavirostris. The present sightings and previous live stranding indicate
that the western Mediterranean Sea is the easternmost marginal area of M. bidens within the North Atlantic geographic
range. Notes on behaviour are also provided.
Keywords:
Tipologia CRIS:
1.1 Articolo in rivista
Keywords:
Marine biodiversity, Ziphiidae, cetaceans inter-specific interactions, Caprera Canyon, biogeography
Elenco autori:
Bittau, L.; Leone, M.; Gannier, A.; Gannier, A.; Manconi, R.
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