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Life Cycle

provided by Fishbase
Oviparous (Ref. 3167). Paired eggs are laid. Embryos feed solely on yolk (Ref. 50449). Distinct pairing with embrace. Young may tend to follow large objects, such as their mother (Ref. 205).
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Recorder
Cristina V. Garilao
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Biology

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Found on continental slopes and deepwater rises (Ref. 3167). Oviparous. Distinct pairing with embrace. Young may tend to follow large objects, such as their mother (Ref. 205). Eggs are oblong capsules with stiff pointed horns at the corners deposited in sandy or muddy flats (Ref. 205). Egg capsules are 5.3 cm long and 3.0 cm wide (Ref. 41249).
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Crispina B. Binohlan
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Bigelow's ray

provided by wikipedia EN

Bigelow's ray (Rajella bigelowi), also called the chocolate skate or Bigelow's skate,[3] is a species of skate in the family Rajidae.[4][5][6] It is named in honour of the oceanographer Henry Bryant Bigelow.[7]

Distribution

Bigelow's ray lives on continental slopes and deepwater rises around the edges of the Atlantic Ocean. It has been recorded at 367–4,156 m (1,204–13,635 ft), mostly below 1,500 m (4,900 ft).[8][9]

Description

Like all rays, Bigelow's ray has a flattened body with broad, wing-like pectoral fins. The body is sub-rhomboid. It is dark on the dorsal surface, with the outer edges of the disc and pelvic fins shading to a slightly darker colour.[4]

Its maximum length is 55 cm (1.80 ft).[10]

Behaviour

Bigelow's ray feeds on small benthic crustaceans.[11]

Life cycle

Bigelow's ray is oviparous. The eggs are oblong capsules with stiff pointed horns at the corners; they are deposited in sandy or muddy flats.[12]

It is parasitised by Ditrachybothridium macrocephalum (tapeworms of the order Diphyllidea).[10]

See also

References

  1. ^ Orlov, A. (December 1, 2008). "IUCN Red List of Threatened Species: Rajella bigelowi". IUCN Red List of Threatened Species – via www.iucnredlist.org.
  2. ^ "WoRMS - World Register of Marine Species - Rajella bigelowi (Stehmann, 1978)". www.marinespecies.org.
  3. ^ Hamlett, William C. (May 21, 1999). Sharks, Skates, and Rays: The Biology of Elasmobranch Fishes. JHU Press. ISBN 9780801860485 – via Google Books.
  4. ^ a b Government of Canada, Fisheries and Oceans Canada (December 19, 2016). "Chocolate or Bigelow's Skate (Rajella bigelowi)". www.dfo-mpo.gc.ca.
  5. ^ Priede, Imants G. (August 10, 2017). Deep-Sea Fishes: Biology, Diversity, Ecology and Fisheries. Cambridge University Press. ISBN 9781316033456 – via Google Books.
  6. ^ Coad, Brian W.; Reist, James D. (January 1, 2018). Marine Fishes of Arctic Canada. University of Toronto Press. ISBN 9781442647107 – via Google Books.
  7. ^ Watkins, Michael; Beolens, Bo (January 30, 2015). Sharks: An Eponym Dictionary. Pelagic Publishing Ltd. ISBN 9781784270377 – via Google Books.
  8. ^ Carrier, Jeffrey C.; Musick, John A.; Heithaus, Michael R. (March 9, 2010). Sharks and Their Relatives II: Biodiversity, Adaptive Physiology, and Conservation. CRC Press. ISBN 9781420080483 – via Google Books.
  9. ^ "Shorefishes - The Fishes - Species". biogeodb.stri.si.edu.
  10. ^ a b "WoRMS - World Register of Marine Species - Rajella bigelowi (Stehmann, 1978)". www.marinespecies.org.
  11. ^ Last, Peter; Naylor, Gavin; Séret, Bernard; White, William; Stehmann, Matthias; Carvalho, Marcelo de (December 1, 2016). Rays of the World. Csiro Publishing. ISBN 9780643109155 – via Google Books.
  12. ^ "Rajella bigelowi, Bigelow's ray". www.fishbase.se.

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Bigelow's ray: Brief Summary

provided by wikipedia EN

Bigelow's ray (Rajella bigelowi), also called the chocolate skate or Bigelow's skate, is a species of skate in the family Rajidae. It is named in honour of the oceanographer Henry Bryant Bigelow.

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Distribution

provided by World Register of Marine Species
Grand Banks to northeastern Gulf of Mexico; Gulf of Maine record from Collette and Klein-MacPhee (eds.) 2002

Reference

North-West Atlantic Ocean species (NWARMS)

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Kennedy, Mary [email]

Habitat

provided by World Register of Marine Species
Found on continental slopes and deepwater rises.

Reference

North-West Atlantic Ocean species (NWARMS)

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Kennedy, Mary [email]

Habitat

provided by World Register of Marine Species
benthic

Reference

North-West Atlantic Ocean species (NWARMS)

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WoRMS Editorial Board
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Kennedy, Mary [email]