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Image of Roughskin Catshark
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Roughskin Catshark

Apristurus ampliceps Sasahara, Sato & Nakaya 2008

Diagnostic Description

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This species has the following characters: upper labial furrows about equal to, or slightly shorter than the lower ones; length of pre-outer nostril 4.5-6.6% TL; semicircular upper jaw; continuous supraorbital sensory canal; first dorsal fin is slightly smaller than second; anal fin is rounded in shape; narrow dermal denticles, leaf-like and sparse in distribution; enlarged dermal denticles absent along the dorsal margin of caudal fin; 8-11 spiral valves in intestine; size at maturity 65.0-75.0 cm TL; uniformly brown or blackish brown body and fins (Ref. 76941).
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Biology

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Claspers of males are short and less than 2.0% TL in specimens less than 52.7 cm TL, which is ranked as maturity stage 1 (immature); 73.3-76.5 cm TL have long but soft claspers (3.9-4.2% TL, maturity stage 2; greater than 78 cm TL have long, well developed and hardenedclaspers (3.6-5.6% TL, maturity stage 3). Immature males are less than 52.7 cm TL and for females 37.4 cm TL (maturity stage 1); adolescent in males of 73.3-76.5 cm TL and females of 57.8-65.6 cm TL are (maturity stage 2); and adult in males with greater than 78 cm TL and females greater than 67.8 cm TL (maturity stage 3) (Ref. 76941).
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Roughskin catshark

provided by wikipedia EN

The roughskin catshark (Apristurus ampliceps) is a species of catshark in the family Scyliorhinidae found near Australia and New Zealand.[2][3] Its natural habitat is the open seas.[2] This species belongs to a genus of poorly known deep-water catsharks.

This species was first described in 2008 by Ryohei Sasahara, Keiichi Sato & Kazuhiro Nakaya.[2][4]

Very little is known of its biology.[5] This species is known to occur in deep water (840 to 1,380 m) off New Zealand, sporadic sites around Tasmania, and a small area of Western Australia.[2] Some concern exists for this species, as its distribution includes some heavily fished areas. Deep-water demersal trawl fisheries are expanding in the region, and assuming its biology is like other deep-water shark species, it may not be sufficiently fecund to withstand the exploitation pressure.

Conservation status

The New Zealand Department of Conservation has classified the roughskin catshark as "Data deficient" under the New Zealand Threat Classification System.[6]

References

  1. ^ Kyne, P.M.; Cavanagh, R.D.; Lisney, T.J. (2015). "Apristurus ampliceps". IUCN Red List of Threatened Species. 2015: e.T42701A68608709. doi:10.2305/IUCN.UK.2015-4.RLTS.T42701A68608709.en. Retrieved 12 November 2021.
  2. ^ a b c d Sasahara, Ryohei; Sato, Keiichi; Nakaya, Kazuhiro (26 June 2008). "A new species of deepwater catshark, Apristurus ampliceps sp. nov. (Chondrichthyes: Carcharhiniformes: Scyliorhinidae), from New Zealand and Australia" (PDF). Descriptions of New Australian Chondrichthyans. CSIRO Marine and Atmospheric Research Paper. 22: 93–104 – via CSIRO.
  3. ^ Roberts, Clive; Stewart, A. L.; Struthers, Carl D.; Barker, Jeremy; Kortet, Salme; Freeborn, Michelle (2015). The fishes of New Zealand. Vol. 2. Wellington, New Zealand: Te Papa Press. p. 79. ISBN 9780994104168. OCLC 908128805.
  4. ^ Roberts, CD; Stewart, AL; Struthers, CD; Barker, JJ; Kortet, S (7 July 2017). Checklist of the Fishes of New Zealand: Online Version 1.0 (PDF). Wellington: Museum of New Zealand Te Papa Tongarewa. p. 11.
  5. ^ Ferrón Jiménez, Humberto; Paredes-Aliaga, M.V.; Martinez-Perez, Carlos; Botella, H. (2018). "Bioluminescent-like squamation in the galeomorph shark Apristurus ampliceps (Chondrichthyes: Elasmobranchii)". Contributions to Zoology. 87 (3): 187–196. doi:10.1163/18759866-08703004 – via Researchgate.
  6. ^ Duffy, Clinton A. J.; Francis, Malcolm; Dunn, M. R.; Finucci, Brit; Ford, Richard; Hitchmough, Rod; Rolfe, Jeremy (2016). Conservation status of New Zealand chondrichthyans (chimaeras, sharks and rays), 2016 (PDF). Wellington, New Zealand: Department of Conservation. p. 9. ISBN 9781988514628. OCLC 1042901090.

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Roughskin catshark: Brief Summary

provided by wikipedia EN

The roughskin catshark (Apristurus ampliceps) is a species of catshark in the family Scyliorhinidae found near Australia and New Zealand. Its natural habitat is the open seas. This species belongs to a genus of poorly known deep-water catsharks.

This species was first described in 2008 by Ryohei Sasahara, Keiichi Sato & Kazuhiro Nakaya.

Very little is known of its biology. This species is known to occur in deep water (840 to 1,380 m) off New Zealand, sporadic sites around Tasmania, and a small area of Western Australia. Some concern exists for this species, as its distribution includes some heavily fished areas. Deep-water demersal trawl fisheries are expanding in the region, and assuming its biology is like other deep-water shark species, it may not be sufficiently fecund to withstand the exploitation pressure.

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