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Bythaelurus canescens (Günther, 1878)

Dusky catshark
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Native range | All suitable habitat | Point map | Year 2050
This map was computer-generated and has not yet been reviewed.
Bythaelurus canescens   AquaMaps   Data sources: GBIF OBIS
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Image of Bythaelurus canescens (Dusky catshark)
Bythaelurus canescens
Female picture by Elasmolab Universidad Austral de Chile

Classificatie / Names Lokale namen | Synoniemen | Catalog of Fishes(Genus, Soort(en)) | ITIS | CoL | WoRMS | Cloffa

Elasmobranchii (haaien en roggen) (sharks and rays) > Carcharhiniformes (Ground sharks) > Pentanchidae (Deepwater catsharks)
Etymology: Bythaelurus: bythos (Gr.), depths of the sea, referring to its deepwater habitat; ailouros (Gr.), cat, probably an allusion to the vernacular “catshark,” so named for its cat-like eyes. (See ETYFish);  canescens: Latin for hoary gray, referring to its “uniform greyish” coloration (presumably in spirits since this shark is brown in life). (See ETYFish).
More on author: Günther.

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

marien bathydemersaal; diepte 250 - 700 m (Ref. 244). Deep-water; 2°S - 56°S, 81°W - 70°W

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Southeast Pacific: Peru and Chile to the Straits of Magellan.

Grootte / Gewicht / Leeftijd

Maturity: Lm ?  range ? - ? cm
Max length : 70.0 cm TL mannelijk / geslacht onbekend; (Ref. 244)

Biologie     Verklarende woordenlijst (bv. epibenthic)

Found on the upper continental slopes primarily on mud, but also on rock bottoms. Feeds on bottom invertebrates. Oviparous, with a single egg per oviduct at a time. Not utilized at present.

Levenscyclus en paargedrag Maturities | Voortplanting | Spawnings | Egg(s) | Fecundities | Larven

Oviparous; apparently laying a single egg per oviduct at a time (Ref. 244).

Hoofdreferentie Upload your references | Referenties | Coördinator | Medewerkers

Compagno, L.J.V., 1984. FAO Species Catalogue. Vol. 4. Sharks of the world. An annotated and illustrated catalogue of shark species known to date. Part 2 - Carcharhiniformes. FAO Fish. Synop. 125(4/2):251-655. Rome: FAO. (Ref. 244)

Status op de Rode Lijst van het IUCN (Ref. 130435)

  Kwetsbaar, zie IUCN Rode Lijst (VU) (A2cd); Date assessed: 06 February 2019

CITES

Not Evaluated

CMS (Ref. 116361)

Not Evaluated

Gevaar voor de mens

  Harmless





Gebruik door de mens

Visserij: van geen belang
FAO - visserij: aanvoer; Publication: search | FishSource | Sea Around Us

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Internetbronnen

AFORO (otoliths) | Aquatic Commons | BHL | Cloffa | BOLDSystems | Websites from users | Bekijk FishWatcher | CISTI | Catalog of Fishes: Genus, Soort(en) | DiscoverLife | ECOTOX | FAO - visserij: aanvoer; Publication: search | Faunafri | Fishipedia | Fishtrace | GenBank: genoom, 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: ga naar, zoek | World Records Freshwater Fishing | Zoological Record

Estimates based on models

Preferred temperature (Ref. 123201): 5.8 - 9.5, mean 6.3 °C (based on 13 cells).
Fylogenetische diversiteitsindex (Ref. 82804):  PD50 = 0.5001   [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).
Trofisch niveau (Ref. 69278):  4.5   ±0.4 se; based on diet studies.
Weerstandsvermogen (Ref. 120179):  laag, minimale populatieverdubbelingstijd 4,5-14 jaar (Fec assumed to be <100).
Fishing Vulnerability (Ref. 59153):  Moderate to high vulnerability (48 of 100).
Climate Vulnerability (Ref. 125649):  Low to moderate vulnerability (34 of 100).