White-dotted skate: Difference between revisions
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{{Short description|Species of cartilaginous fish}} |
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{{Taxobox |
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{{Speciesbox |
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| name = White-dotted skate |
| name = White-dotted skate |
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| image = |
| image = Bathyraja albomaculata 237069822.jpg |
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| status = VU | status_system = IUCN3.1 |
| status = VU |
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| status_system = IUCN3.1 |
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| genus = Bathyraja |
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| species = albomaculata |
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| classis = [[Chondrichthyes]] |
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|status_ref=<ref name="iucn status 19 November 2021">{{cite iucn |author=Pollom, R. |author2=Dulvy, N.K. |author3=Acuña, E. |author4=Bustamante, C. |author5=Cevallos, A. |author6=Chiaramonte, G.E. |author7=Cuevas, J.M. |author8=Herman, K. |author9=Navia, A.F. |author10=Paesch, L. |author11=Pompert, J. |author12=Velez-Zuazo, X. |date=2020 |title=''Bathyraja albomaculata'' |volume=2020 |page=e.T63102A124458655 |doi=10.2305/IUCN.UK.2020-3.RLTS.T63102A124458655.en |access-date=19 November 2021}}</ref> |
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| ordo = [[Rajiformes]] |
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| familia = [[Rajidae]] |
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| genus = ''[[Bathyraja]]'' |
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| species = '''''B. albomaculata''''' |
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| binomial = ''Bathyraja albomaculata'' |
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The ''' |
The '''white-dotted skate''' (''Bathyraja albomaculata'') is a [[species]] of [[Skate (fish)|skate]] in the family [[Arhynchobatidae]]. It is found in the south-western Atlantic off the coast of Uruguay, Argentina and the [[Falkland Islands]] and uncommonly off Chile ([[Guamblin Island]]) in the south-eastern Pacific Ocean, at depths ranging from 55 to 861 metres. Males reach maturity at the age of about 11 years and females about 10 years. At maturity the total length of males is about 62.8 cm and females 65.3 cm. The oldest reported specimen was 17 years old. The maximum length has been estimated to be almost one metre. It is [[oviparous]]. [[Egg case (Chondrichthyes)|Egg capsules]] are oblong having horned corners, the horns at the back end appear first and are longer, and thinner than the front ones. Capsules are barrel-shaped, quite smooth, yellow-brown when freshly laid, but they get darker. Egg laying has been observed year-round, but most frequently in autumn and winter.<ref name=Sharks>{{cite book|editor1-last=Carrier|editor1-first=Jeffrey C.|editor2-last=Musick|editor2-first=John A.|editor3-last=Heithaus|editor3-first=Michael R.|title=Sharks and Their Relatives II Biodiversity, Adaptive Physiology, and Conservation|date=2010|publisher=CRC Press|location=Hoboken|isbn=978-1-4200-8048-3|edition=2nd|url=https://books.google.com/books?id=VioW40mAljUC&q=Bathyraja+albomaculata&pg=PA91|accessdate=20 November 2015}}</ref>{{Rp|48}} The animal eats mainly [[benthopelagic]] [[gammarid]]s and [[polychaetes]] and also [[isopods]]. Juvenile white-dotted skates eat mostly gammarid amphipods, while adults eat mostly polychaetes.<ref name=Sharks />{{Rp|337}} |
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==References== |
==References== |
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{{Reflist}} |
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* {{IUCN2008 |
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* {{Cite iucn | author = McCormack, C. | author2 = Lamilla, J. | author3 = San Martín, M.J. | author4 = Stehmann, M.F.W. | name-list-style = amp | title = ''Rhinoraja albomaculata'' | volume = 2007 | page = e.T63102A12604017 | date = 2007 | doi = 10.2305/IUCN.UK.2007.RLTS.T63102A12604017.en }} |
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|year=2007 |
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|id=63102 |
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|title=Bathyraja albomaculata |
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|downloaded=27 March 2009 |
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}} |
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{{Taxonbar|from=Q3759305}} |
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{{DEFAULTSORT:skate, white-dotted}} |
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[[ca:Bathyraja albomaculata]] |
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[[Category:Fish of Argentina]] |
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[[Category:Fish of Uruguay]] |
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[[Category:Fish of Chile]] |
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[[Category:Taxa named by John Roxborough Norman]] |
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[[Category:Southeastern South American coastal fauna]] |
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[[Category:Fish described in 1937|white-dotted skate]] |
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{{Rajiformes-stub}} |
Latest revision as of 12:37, 25 February 2023
White-dotted skate | |
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Scientific classification | |
Domain: | Eukaryota |
Kingdom: | Animalia |
Phylum: | Chordata |
Class: | Chondrichthyes |
Subclass: | Elasmobranchii |
Superorder: | Batoidea |
Order: | Rajiformes |
Family: | Arhynchobatidae |
Genus: | Bathyraja |
Species: | B. albomaculata
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Binomial name | |
Bathyraja albomaculata (Norman, 1937)
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The white-dotted skate (Bathyraja albomaculata) is a species of skate in the family Arhynchobatidae. It is found in the south-western Atlantic off the coast of Uruguay, Argentina and the Falkland Islands and uncommonly off Chile (Guamblin Island) in the south-eastern Pacific Ocean, at depths ranging from 55 to 861 metres. Males reach maturity at the age of about 11 years and females about 10 years. At maturity the total length of males is about 62.8 cm and females 65.3 cm. The oldest reported specimen was 17 years old. The maximum length has been estimated to be almost one metre. It is oviparous. Egg capsules are oblong having horned corners, the horns at the back end appear first and are longer, and thinner than the front ones. Capsules are barrel-shaped, quite smooth, yellow-brown when freshly laid, but they get darker. Egg laying has been observed year-round, but most frequently in autumn and winter.[2]: 48 The animal eats mainly benthopelagic gammarids and polychaetes and also isopods. Juvenile white-dotted skates eat mostly gammarid amphipods, while adults eat mostly polychaetes.[2]: 337
References[edit]
- ^ Pollom, R.; Dulvy, N.K.; Acuña, E.; Bustamante, C.; Cevallos, A.; Chiaramonte, G.E.; Cuevas, J.M.; Herman, K.; Navia, A.F.; Paesch, L.; Pompert, J.; Velez-Zuazo, X. (2020). "Bathyraja albomaculata". IUCN Red List of Threatened Species. 2020: e.T63102A124458655. doi:10.2305/IUCN.UK.2020-3.RLTS.T63102A124458655.en. Retrieved 19 November 2021.
- ^ a b Carrier, Jeffrey C.; Musick, John A.; Heithaus, Michael R., eds. (2010). Sharks and Their Relatives II Biodiversity, Adaptive Physiology, and Conservation (2nd ed.). Hoboken: CRC Press. ISBN 978-1-4200-8048-3. Retrieved 20 November 2015.
- McCormack, C.; Lamilla, J.; San Martín, M.J. & Stehmann, M.F.W. (2007). "Rhinoraja albomaculata". IUCN Red List of Threatened Species. 2007: e.T63102A12604017. doi:10.2305/IUCN.UK.2007.RLTS.T63102A12604017.en.
- "Reproductive biology and abundance of the white-dotted skate, Bathyraja albomaculata, in the Southwest Atlantic". Retrieved 27 March 2009.