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Ελασμοβράγχιοι (καρχαρίες και σαλάχια) (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 Οικολογία

Θαλασσινό(ά) βαθύβιο(ς); εύρος βάθους 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.

Μέγεθος / Βάρος / Age

Maturity: L_m ? range ? - ? cm
Max length : 70.0 cm TL αρσενικό/απροσδιόριστο; (Ref. 244)

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.

Life cycle and mating behavior Maturities | Αναπαραγωγή | Spawnings | Egg(s) | Fecundities | Προνύμφες

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

Main reference Upload your references | Αναφορές | Συντονιστής | Συνεργάτες

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)

IUCN Red List Status (Ref. 130435)

Ευάλωτο, βλέπε Κόκκινη Λίστα (VU) (A2cd); Date assessed: 06 February 2019

CITES

Not Evaluated

CMS (Ref. 116361)

Not Evaluated

Threat to humans

Harmless

Human uses

αλιεία: χωρίς ενδιαφέρον

FAO - αλιεία: landings; Publication: search | FishSource | Η θάλασσα γύρω μας

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Διαδικτυακές πηγές

Estimates based on models

Preferred temperature (Ref. 123201): 5.8 - 9.5, mean 6.3 °C (based on 13 cells).

Phylogenetic diversity index (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).

Τροφικό Επίπεδο (Ref. 69278): 4.5 ±0.4 se; based on diet studies.

Ελαστικότητα (Ref. 120179): Χαμηλό, ελάχιστος χρόνος για διπλασιασμό πληθυσμού 4,5 - 14 έτη (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).

Bythaelurus canescens (Günther, 1878)