Deepwater catshark

The deepwater catshark[1] (Apristurus profundorum) is a catshark of the family Scyliorhinidae, found in the western Atlantic from Delaware Bay to Suriname, and in the eastern Atlantic from Morocco to northwest Africa.[2] An important key factor to understanding these creatures is ageing, many deepwater Apristurus profundorum have poorly calcified vertebrae that lack visible growth bands, and most do not have dorsal fin spines that can be used for ageing. Other methods, such as captive growth and tag-recapture, are also limited in their suitability for deepwater chondrichthyans due to difficulties in the deep sea.

Deepwater catshark
Scientific classification
Kingdom: Animalia
Phylum: Chordata
Class: Chondrichthyes
Order: Carcharhiniformes
Family: Scyliorhinidae
Genus: Apristurus
Species:
A. profundorum
Binomial name
Apristurus profundorum
(Goode & T. H. Bean, 1896)

References
  1. Kulka, D.W., Anderson, B., Cotton, C.F., Herman, K., Pacoureau, N. & Dulvy, N.K. 2020. Apristurus profundorum. The IUCN Red List of Threatened Species 2020: e.T44224A124431775. https://www.iucnredlist.org/species/44224/124431775 Downloaded on 16 January 2021.
  2. Froese, Rainer and Pauly, Daniel, eds. (2006). "Apristurus profundorum" in FishBase. May 2006 version.

3. Rigby, Cassandra L., et al. “The Utility of near Infrared Spectroscopy for Age Estimation of Deepwater Sharks.” Deep-Sea Research Part I: Oceanographic Research Papers, vol. 94, Dec. 2014, pp. 184–194., doi:10.1016/j.dsr.2014.09.004.

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