Tematica Mammiferi marini

Berardius bairdii Stejneger, 1883

Phylum: Chordata Haeckel, 1874

Classe: Mammalia Linnaeus, 1758

Ordine: Cetartiodactyla Montgelard et al., 1997

Famiglia: Ziphiidae Gray, 1850

Genere: Berardius Duvernoy, 1851

Descrizione

Dati i pochi studi su questa specie quasi nulla è dato per certo. Il loro soffio (che emettono ogni 30-40 secondi) appare denso, alto un paio di metri, mentre in apnea può rimanere anche per un'ora senza compiere grandi distanze in orizzontale. La loro lunghezza varia 8 ai 10 metri mentre per il peso è difficile effettuare una stima precisa, variando da 5.800 a 7.500 kg. I denti possono mancare del tutto o essere presenti, in numero di 4 o di forma che ricordano degli stuzzicadenti. Specie simili sono la balenottera minore, il berardio australe e il globicefalo.

Diffusione

Diffuso nell'emisfero meridionale dall'Antartico fino a circa 30° S, solitamente viene avvistato nel perioso estivo vicino all' Antartide.

Sinonimi

= Berardius vegae (Malm, 1883).

Bibliografia

–Yamada, Tadasu K.; Kitamura, Shino; Abe, Syuiti; Tajima, Yuko; Matsuda, Ayaka; Mead, James G.; Matsuishi, Takashi F. (30 August 2019). "Description of a new species of beaked whale (Berardius) found in the North Pacific". Scientific Reports. 9 (1): 12723.
–Dalebout (2002). Species identity, genetic diversity and molecular systematic relationships among the Ziphiidae (beaked whales). PHD Thesis, School of Biological Sciences, University of Auckland, Auckland, New Zealand (Thesis).
–"Berardius bairdii". The Moirai - Aging Research. 19 October 2016. Archived from the original on 21 November 2016. Retrieved 20 November 2016.
–Balcomb (1989). "Baird's beaked whale, Berardius bairdii Stejneger, 1883: Arnoux's beaked whale, Berardius arnuxii Duvernoy, 1851". Handbook of Marine Mammals. 4. London: Academic Press. pp. 261-288.
–Beolens, Bo, Michael Watkins, and Michael Grayson. 2009. The eponym dictionary of mammals. Baltimore: Johns Hopkins University Press, p. 38, 54.
–Sharks and Whales (Carwardine et al. 2002), p. 356.
–McCann (1975). "A study of the genus Berardius". Scientific Reports of the Whales Research Institute. 27: 111-137.
–Kasuya (1973). "Systematic consideration of recent toothed whales based on the morphology of the tympano-periotic bone". Scientific Reports of the Whales Research Institute. 21: 1-103.
–McLachlan (1966). "A record of Berardius arnouxi from the South-East Coast of South Africa". Annals of the Cape Provincial Museum (Natural History). 5: 91-100.
–Slipp (1953). "The beaked whale Berardius on the Washington Coast". Journal of Mammalogy. 34 (1): 105-113.
–Rice (1998). Marine Mammals of the World: Systematics and Distribution. Special Publication Number 4. The Society for Marine Mammalogy.
–Ross (1984). "The smaller cetaceans of the south east coast of southern Africa". Annals of the Cape Provincial Museum (Natural History). 15: 173-410.
–Davies (1963). "The antitropical factor in cetacean speciation". Evolution. 17 (1): 107-116.
–Kennedy, Merrit (27 July 2016). "Mysterious and Known as the 'Raven': Scientists Identify New Whale Species". NPR. Archived from the original on 13 January 2018. Retrieved 28 July 2016.
–Cox, Tara. M.; et al. (2006). "Understanding the impacts of anthropogenic Sound on beaked whales". Journal of Cetacean Research and Management. 7: 177-187.
–Baumann-Pickering, S.; et al. (2012b). "Passive Acoustic Monitoring for Marine Mammals in the Gulf of Alaska Temporary Maritime Activities Area 2011-2012". Marine Physical Laboratory, Scripps Institute of Oceanography. 538.
–Mann, J.; et al. Field Studies of Dolphins and Whales. Univ. of Chicago Press. pp. 231, 261.
–Uni Y., Koyama K., Nakagun S., Maeda M., 2014. Sighting Records of Cetaceans and Sea Birds in the Southern Okhotsk Sea, off Abashiri, Hokkaido Archived 31 May 2014 at the Wayback Machine. Bulletin of the Shiretoko Museum 36: pp.29-40. Retrieved on 30 May 2014.
–Irish Whale and Dolphin Group, 2016, New species of beaked whale_or is it ? Archived 14 August 2016 at the Wayback Machine.
–Uni Y., Photos from Abashiri Nature Cruise Archived 26 February 2014 at the Wayback Machine.

	Data: 10/09/2001 Emissione: Balene e delfini Stato: Grenada

	Data: 11/03/2011 Emissione: Balene del mondo Stato: Palau Nota: Emesso in un foglietto di 6 v. diversi

	Data: 20/10/1992 Emissione: Balene Stato: Korea (North) Nota: Emesso anche in un foglietto di 3 v. diversi

	Data: 27/02/2001 Emissione: Balene del Pacifico Stato: Micronesia Nota: Emesso in un foglietto di 6 v. diversi