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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); alcockii: In honor of physician-naturalist Alfred William Alcock (1859-1933), who noted the distinctiveness of this species in 1896 (See ETYFish).
Eponymy: Lieutenant-Colonel Dr Alfred William Alcock (1859–1933) was a British physician, herpetologist, carcinologist and naturalist. [...] (Ref. 128868), visit book page.
More on author: Garman.

Issue
Validity of this species questioned in Compagno's 1999 checklist (Ref. 35766).

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

marien bathydemersaal; diepte 1134 - 1263 m (Ref. 58018). Deep-water

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Western Indian Ocean: Arabian Sea.

Grootte / Gewicht / Leeftijd

Maturity: L_m ? range ? - ? cm
Max length : 30.0 cm TL mannelijk / geslacht onbekend; (Ref. 244)

Known only from the holotype which was found on the continental slope of the Arabian Sea.

Levenscyclus en paargedrag Maturiteit | Voortplanting | Paaien | Eieren | Fecunditeit | Larven

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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: Version 2024-2)

Onvoldoende gegevens (DD) ; Date assessed: 09 February 2017

CITES

Not Evaluated

CMS (Ref. 116361)

Not Evaluated

Gevaar voor de mens

Harmless

Gebruik door de mens

Visserij: van geen belang

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Estimates based on models

Preferred temperature (Ref. 123201): 5.9 - 8, mean 7.3 °C (based on 7 cells).

Fylogenetische diversiteitsindex (Ref. 82804): PD₅₀ = 0.5001 [Uniqueness, from 0.5 = low to 2.0 = high].

Bayesian length-weight: a=0.00355 (0.00175 - 0.00721), b=3.08 (2.90 - 3.26), in cm total length, based on LWR estimates for this (Sub)family-body shape (Ref. 93245).

Trofisch niveau (Ref. 69278): 4.1 ±0.4 se; based on size and trophs of closest relatives

Weerstandsvermogen (Ref. 120179): laag, minimale populatieverdubbelingstijd 4,5-14 jaar (Fec assumed to be <100).

Fishing Vulnerability (Ref. 59153): Low vulnerability (20 of 100).

Bythaelurus alcockii (Garman, 1913)