Ελασμοβράγχιοι (καρχαρίες και σαλάχια) (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); saldanha: Named for Saldanha Bay, South Africa, type locality. (See ETYFish).
More on author: Barnard.
Environment: milieu / climate zone / depth range / distribution range
Οικολογία
Θαλασσινό(ά) βαθύβιο(ς); εύρος βάθους 453 - 717 m (Ref. 5578). Deep-water; 31°S - 40°S
Southeast Atlantic: Cape Columbine to south of False Bay in South Africa (Ref. 5578).
Μέγεθος / Βάρος / Age
Maturity: Lm ? range ? - ? cm
Max length : 88.0 cm TL αρσενικό/απροσδιόριστο; (Ref. 5578)
Short description
Κλείδες προσδιορισμού | Μορφολογία | Μορφομετρία
Ραχιαίες άκανθες (συνολικά) : 0; Εδρικές άκανθες: 0. A stout, plain catshark with moderately large eyes, a long, thick and broad snout, and long labial furrows; mouth not projecting in front of eyes; pectoral fins large (Ref. 5578). Uniformly dark grey-brown (Ref. 5578).
Found on the continental slope (Ref. 244). Feeds on small bony fish and cephalopods (Ref. 5578). Oviparous (Ref. 50449).
Life cycle and mating behavior
Maturities | Αναπαραγωγή | Spawnings | Egg(s) | Fecundities | Προνύμφες
Oviparous (Ref. 5578). Paired eggs are laid. Embryos feed solely on yolk (Ref. 50449).
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)
Threat to humans
Harmless
Human uses
αλιεία: χωρίς ενδιαφέρον
Εργαλεία
Special reports
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Διαδικτυακές πηγές
Estimates based on models
Preferred temperature (Ref.
123201): 6.2 - 11.9, mean 10.8 °C (based on 5 cells).
Phylogenetic diversity index (Ref.
82804): PD
50 = 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).
Τροφικό Επίπεδο (Ref.
69278): 4.2 ±0.7 se; based on diet studies.
Ελαστικότητα (Ref.
120179): Πολύ χαμηλό, ελάχιστος χρόνος για διπλασιασμό πληθυσμού > 14 έτη (Fec assumed to be <10).
Fishing Vulnerability (Ref.
59153): High vulnerability (55 of 100).
