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Balaenoptera physalus

Balaenoptera physalus
Un rorqual común (Balaenoptera physalus).
Denominacions populars
rorqual común [1]
Estau de conservación

Vulnerable (IUCN)
Clasificación cientifica
Animalia
Chordata
Mammalia
Artiodactyla
Suborden:
Cetacea
Balaenopteridae
Balaenoptera
B. physalus
Descripción
Balaenoptera physalus
Linnaeus, 1758
Distribución cheografica
Distribución d'o rorqual común.

O rorqual común (Balaenoptera physalus (Linnaeus, 1758)[2]) ye una especie de mamifero marino d'a orden d'os Artiodactyla y familia Balaenopteridae que ye la segunda especie de cetacio de mayor grandaria d'a Tierra dimpués d'a ballena azul. Seguntes os informes, os mas grans creixen dica 27,3 m de largo[3] con una longaria maxima confirmada de 25,9 m,[4] un peso maximo rechistrau de cuasi 74 toneladas,[5] y un peso maximo estimau d'unas 114 toneladas.

Como totas as de demás ballenas grans, o rorqual común estió muito cazau entre lo sieglo XX. Como resultau, ye una especie en periglo d'extinción. Seguntes os informes, se capturoron mas de 725.000 rorquals comuns en l'hemisferio sud entre 1905 y 1976; en 1997 nomás sobrevivioron 38.000.[6] Encara se caza en Islandia, Chapón y Groenlandia.

Referencias

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  1. (an) Diccionario ortografico de l'aragonés (Seguntes la Propuesta Ortografica de l'EFA). Versión preliminar. Estudio de Filología Aragonesa. ISSN 1988-8139. Octubre de 2022.
  2. (en) Wilson, D. E.; Reeder, D. M. (eds.). Mammal Species of the World: A Taxonomic and Geographic Reference (3rd ed.). Johns Hopkins University Press. p. 725. ISBN 978-0-8018-8221-0.
  3. (en) Mackintosh, N. A.; Wheeler, J. F. G. (1929). "Southern blue and fin whales". Discovery Reports. I: 259–540.
  4. (en) Mackintosh, N. A. (1943). "The southern stocks of whalebone whales". Discovery Reports. XXII (3889): 199–300.
  5. (en) Lockyer C (1976). "Body weights of some species of large whales". J. Cons. Int. Explor. Mer. 36 (3): 259–273.
  6. (en) Fin Whale en iucnredlist.org

Vinclos externos

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Balaenoptera physalus
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