Apristurus melanoasper, Black roughscale catshark

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Apristurus melanoasper Iglésias, Nakaya & Stehmann, 2004

Black roughscale catshark
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Apristurus melanoasper   AquaMaps   Data sources: GBIF OBIS
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Image of Apristurus melanoasper (Black roughscale catshark)
Apristurus melanoasper
Male picture by MNHN

Classification / Names Common names | Synonyms | Catalog of Fishes(genus, species) | ITIS | CoL | WoRMS | Cloffa

Elasmobranchii (sharks and rays) > Carcharhiniformes (Ground sharks) > Pentanchidae (Deepwater catsharks)
Etymology: Apristurus: a-, Latin privative, i.e., without; pristis, from pristes (Gr.), sawyer (but here meaning saw); oura (Gr.), tail, referring to absence of saw-toothed crest of enlarged dermal denticles along upper edge of caudal fin as found in the closely related Pristiurus (=Galeus). (See ETYFish);  melanoasper: melanos (Gr.), black; asper (L.), rough, referring to black body color and rough skin. (See ETYFish).

Environment: milieu / climate zone / depth range / distribution range Ecology

Marine; bathypelagic; depth range 512 - 1520 m (Ref. 56212). Deep-water

Distribution Countries | FAO areas | Ecosystems | Occurrences | Point map | Introductions | Faunafri

North Atlantic: Slope, off northern U.S. and off France, Ireland and British Isles.

Length at first maturity / Size / Weight / Age

Maturity: Lm 57.0, range 55 - 59 cm
Max length : 76.1 cm TL male/unsexed; (Ref. 56212); 73.2 cm TL (female); max. published weight: 1.3 kg (Ref. 56212); max. published weight: 1.3 kg

Short description Morphology | Morphometrics

Diagnosis: Body uniformly black, slightly brownish in larger specimens. Dermal denticles large and giving a rough texture to the skin. Upper labial furrows longer than the lower ones. First dorsal fin only slightly smaller than the second dorsal fin, originating from above anterior third to middle of the pelvic fin base. Second dorsal fin insertion just before level of anal fin insertion. Interorbital space 1.9-3.5 times eye horizontal diameter. Abdomen between pectoral fin tip and pelvic fin origin 1.3-2.5 times pectoral fin width. Spiral valves of the intestine 19-23 (mostly 21-22). Monospondylous + precaudal diplospondylous vertebrae 36-43 + 26-32 (often 38-40 + 28-30). Dermal denticles on tongue and palate absent (Ref. 56212).

Biology     Glossary (e.g. epibenthic)

Found generally at depths of more than 1000 meters (Ref. 56212).

Life cycle and mating behavior Maturity | Reproduction | Spawning | Eggs | Fecundity | Larvae

Main reference Upload your references | References | Coordinator | Collaborators

Iglésias, S.P., K. Nakaya and M. Stehmann, 2004. Apristurus melanoasper, a new species of deep-water catshark from the North Atlantic (Chondrichthyes: Carcharhiniformes: Scyliorhinidae). Cybium 28(4):345-356. (Ref. 56212)

IUCN Red List Status (Ref. 130435)

  Least Concern (LC) ; Date assessed: 17 February 2015

CITES

Not Evaluated

CMS (Ref. 116361)

Not Evaluated

Threat to humans

  Harmless





Human uses

FAO - Publication: search | FishSource |

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Internet sources

AFORO (otoliths) | Aquatic Commons | BHL | Cloffa | BOLDSystems | Websites from users | Check FishWatcher | CISTI | Catalog of Fishes: genus, species | DiscoverLife | ECOTOX | FAO - Publication: search | Faunafri | Fishipedia | Fishtrace | GenBank: genome, nucleotide | GloBI | Google Books | Google Scholar | Google | IGFA World Record | MitoFish | Otolith Atlas of Taiwan Fishes | PubMed | Reef Life Survey | Socotra Atlas | Tree of Life | Wikipedia: Go, Search | World Records Freshwater Fishing | Zoobank | Zoological Record

Estimates based on models

Preferred temperature (Ref. 123201): 3.5 - 9.9, mean 7.2 °C (based on 79 cells).
Phylogenetic diversity index (Ref. 82804):  PD50 = 0.5000   [Uniqueness, from 0.5 = low to 2.0 = high].
Bayesian length-weight: a=0.00355 (0.00176 - 0.00714), b=3.09 (2.91 - 3.27), in cm total length, based on LWR estimates for this (Sub)family-body shape (Ref. 93245).
Trophic level (Ref. 69278):  4.0   ±0.4 se; based on size and trophs of closest relatives
Resilience (Ref. 120179):  Very Low, minimum population doubling time more than 14 years (Fec assumed to be <10).
Fishing Vulnerability (Ref. 59153):  Moderate to high vulnerability (50 of 100).
Nutrients (Ref. 124155):  Calcium = 8.66 [1.82, 62.13] mg/100g; Iron = 0.255 [0.057, 1.009] mg/100g; Protein = 19.6 [17.3, 21.9] %; Omega3 = 0.115 [0.035, 0.351] g/100g; Selenium = 13.7 [3.4, 53.5] μg/100g; VitaminA = 13.5 [1.6, 98.3] μg/100g; Zinc = 0.388 [0.159, 0.952] mg/100g (wet weight);