Superregnum: Eukaryota
Cladus: Unikonta
Cladus: Opisthokonta
Cladus: Holozoa
Regnum: Animalia
Subregnum: Eumetazoa
Cladus: Bilateria
Cladus: Nephrozoa
Superphylum: Deuterostomia
Phylum: Chordata
Subphylum: Vertebrata
Infraphylum: Gnathostomata
Megaclassis: Osteichthyes
Cladus: Sarcopterygii
Cladus: Rhipidistia
Cladus: Tetrapodomorpha
Cladus: Eotetrapodiformes
Cladus: Elpistostegalia
Superclassis: Tetrapoda
Cladus: Reptiliomorpha
Cladus: Amniota
Cladus: Synapsida
Cladus: Eupelycosauria
Cladus: Sphenacodontia
Cladus: Sphenacodontoidea
Cladus: Therapsida
Cladus: Theriodontia
Cladus: Cynodontia
Cladus: Eucynodontia
Cladus: Probainognathia
Cladus: Prozostrodontia
Cladus: Mammaliaformes
Classis: Mammalia
Subclassis: Trechnotheria
Infraclassis: Zatheria
Supercohors: Theria
Cohors: Eutheria
Infraclassis: Placentalia
Cladus: Boreoeutheria
Superordo: Laurasiatheria
Cladus: Scrotifera
Cladus: Ferungulata
Cladus: Euungulata
Ordo: Artiodactyla
Cladus: Artiofabula
Cladus: Cetruminantia
Subordo: Whippomorpha
Infraordo: Cetacea
Cladus: Neoceti
Parvordo: Odontoceti
Cladus: Delphinida
Superfamilia: Delphinoidea
Familia: Phocoenidae
Genus: Phocoena
Species: Phocoena spinipinnis
Name
Phocoena spinipinnis Burmeister, 1865
References
Phocoena spinipinnis in Mammal Species of the World.
Wilson, Don E. & Reeder, DeeAnn M. (Editors) 2005. Mammal Species of the World – A Taxonomic and Geographic Reference. Third edition. ISBN 0-8018-8221-4.
Vernacular names
English: Burmeister's Porpoise
español: Marsopa negra, Marsopa espinosa
suomi: Mustapyöriäinen
français: Marsouin de Burmeister
magyar: Burmeister-disznódelfin, Burmeister-delfin
日本語: コハリイルカ
Türkçe: Kara musur
Burmeister's porpoise (Phocoena spinipinnis) is a species of porpoise endemic to the coast of South America.[1] It was first described by Hermann Burmeister, for whom the species is named, in 1865.
Population and distribution
While Burmeister's porpoise seems to be relatively common in its range, little work has been done to survey the species. The total population is at least in the tens of thousands. Its range appears to be continuous in coastal waters from northern Peru in the Pacific Ocean round Tierra del Fuego and up to southern Brazil in the Atlantic Ocean.[1] Burmeister's porpoises frequent inshore bays, channels, and fjords,[1] but individuals have been spotted as far as 50 km (31 mi) from the shore and in the freshwater Valdivia River in southern Chile.[1] Though normally found in continental shelf waters, they have been found as deep as 1,000 m (3,300 ft)[1]
Description
Most photographs of Burmeister's porpoises are taken of dead specimens and show the animal to be coloured black. This phenomenon gave rise to the earlier common name, black porpoise. However live individuals are typically a dark grey color.[3] They turn black in just a few minutes after death. The underside varies in colour but is usually a lighter grey. Burmeister's are about 150 cm (59 in) long when fully mature and weigh 50–75 kg (110–165 lb). The maximum recorded weight is that of a female at 105 kg (231 lb). They have a shallow indentation at their blowhole set just in front of the eyes. The shape and placement of the dorsal fin is unusual for a cetacean—it is triangular rather than curved and points backwards more than upwards. It is located about three quarters of the way along the back—further back than any other dolphin or porpoise. These features are sufficient to distinguish the porpoise from the similar-sized Chilean dolphin which is found in the porpoise's Pacific range.
Behaviour
Burmeister's porpoise is difficult to observe. It appears to be shy, shows little of its body when surfacing and will move quickly away from approaching boats. They are typically seen alone or in pairs with occasional larger groups. One report from Chile saw a group of 70 in number. The porpoise feeds on various pelagic fish such as anchovies, hake and mackerel.
Conservation
Like all porpoises, Burmeister's is vulnerable to accidental capture in fishing nets.[1][4] This is common in Uruguay, Peru and Chile. The annual estimated catch is largest in Peru, at 2000 individuals.[3] In Peruvian waters, Burmeister's porpoise caught as bycatch are primarily used for human consumption.[1] Until the late 1990s, Burmeister's were also harpooned deliberately for food and for use as crab bait.[1]
In severe El Nino events, the ecosystem of the Humboldt current is disrupted. Anchovies either perish or leave the area, and it appears that many porpoises and other marine mammals, including the Burmeister's porpoise, must find other food sources or starve as a result.[5] In 1997, during an El Nino event, Burmeister's porpoises were found stranded on Peruvian beaches.[5]
The IUCN lists the animal as Near Threatened in its Red List of Threatened Species.[1] The long-term prognosis for the species is unknown.[1]
Burmeister's porpoise is listed on Appendix II[6] of the Convention on the Conservation of Migratory Species of Wild Animals (CMS). It is listed on Appendix II[6] as it has an unfavourable conservation status or would benefit significantly from international co-operation organised by tailored agreements.
See also
Cetaceans portaliconMammals portalMarine life portal
List of cetaceans
Marine biology
References
Félix, F.; Alfaro, J.; Reyes, J.; Mangel, J.; Dellabianca, N.; Heinrich, S. & Crespo, E. (2018). "Phocoena spinipinnis". IUCN Red List of Threatened Species. 2018: e.T17029A50370481. doi:10.2305/IUCN.UK.2018-2.RLTS.T17029A50370481.en. Retrieved 12 November 2021.
"Appendices | CITES". cites.org. Retrieved 14 January 2022.
Aspects of the biology of Burmeister's Porpoise from Peru Reyes and Can Waerebeek, 1995. Report of the International Whaling Commission. Special Issue 16.
Alfaro-Shigueto, Joanna; Mangel, Jeffrey C.; Pajuelo, Mariela; Dutton, Peter H.; Seminoff, Jeffrey A.; Godley, Brendan J. (2010). "Where small can have a large impact: Structure and characterization of small-scale fisheries in Peru". Fisheries Research. 106 (1): 8–17. doi:10.1016/j.fishres.2010.06.004. ISSN 0165-7836.
Read, Andrew (1999). Porpoises. Stillwater, MN, USA: Voyageur Press. ISBN 978-0-89658-420-4.
"Appendix II Archived 11 June 2011 at the Wayback Machine" of the Convention on the Conservation of Migratory Species of Wild Animals (CMS). As amended by the Conference of the Parties in 1985, 1988, 1991, 1994, 1997, 1999, 2002, 2005 and 2008. Effective: 5 March 2009.
Bibliography
Burmeister's Porpoise in the Encyclopedia of Marine Mammals, J.C. Reyes, 1998. pages 177–179. ISBN 0-12-551340-2
National Audubon Society Guide to Marine Mammals Reeves et al., 2002. ISBN 0-375-41141-0
Whales, Dolphins and Porpoises, Carwardine, 1995. ISBN 0-7513-2781-6
Phocoena spinipinnis, Brownell and Praderi Mammal Species vol 217 pages 1–4, 1984.
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