Ελασμοβράγχιοι (καρχαρίες και σαλάχια) (sharks and rays) >
Squaliformes (Sleeper and dogfish sharks) >
Oxynotidae (Rough sharks)
Etymology: Oxynotus: oxys (Gr.), sharp; notos (Gr.), back, referring to its keeled back (“dorso carenato”) (See ETYFish); paradoxus: Latin for strange or contrary to expectation; Frade was not sure if this shark, with its first dorsal spine directed backward instead of forward, represented a new species or an aberrant form of O. centrina (See ETYFish).
Environment: milieu / climate zone / depth range / distribution range
Οικολογία
Θαλασσινό(ά) βαθύβιο(ς); εύρος βάθους 265 - 1044 m (Ref. 128029). Deep-water; 41°N - 11°N, 13°W - 3°W (Ref. 54694)
Eastern Atlantic: Atlantic slope from Scotland to Senegal (Ref. 247).
Μέγεθος / Βάρος / Age
Maturity: Lm ? range ? - ? cm
Max length : 120 cm TL αρσενικό/απροσδιόριστο; (Ref. 35388); common length : 85.0 cm TL αρσενικό/απροσδιόριστο; (Ref. )
Found on the continental slope (Ref. 247; shallow depth from Ref. 35388. Probably feeds on small bottom invertebrates and fishes. Ovoviviparous.
Life cycle and mating behavior
Γεννητική Ωρίμανση | Αναπαραγωγή | Γεννοβολία | Αβγά | Γονιμότητα | Προνύμφες
Distinct pairing with embrace (Ref. 205).
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 1 - Hexanchiformes to Lamniformes. FAO Fish. Synop. 125(4/1):1-249. Rome, FAO. (Ref. 247)
IUCN Red List Status (Ref. 130435: Version 2024-2)
Threat to humans
Harmless
Human uses
αλιεία: περιορισμένης εμπορικότητας
Εργαλεία
Special reports
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Διαδικτυακές πηγές
Estimates based on models
Phylogenetic diversity index (Ref.
82804): PD
50 = 0.5625 [Uniqueness, from 0.5 = low to 2.0 = high].
Bayesian length-weight: a=0.00372 (0.00163 - 0.00849), b=3.15 (2.94 - 3.36), in cm total length, based on LWR estimates for this (Sub)family-body shape (Ref.
93245).
Τροφικό Επίπεδο (Ref.
69278): 4.0 ±0.60 se; based on food items.
Ελαστικότητα (Ref.
120179): Χαμηλό, ελάχιστος χρόνος για διπλασιασμό πληθυσμού 4,5 - 14 έτη (Fec assumed to be <100).
Fishing Vulnerability (Ref.
59153): High to very high vulnerability (72 of 100).
Climate Vulnerability (Ref.
125649): Moderate vulnerability (36 of 100).
Nutrients (Ref.
124155): Calcium = 6.48 [1.20, 33.69] mg/100g; Iron = 0.264 [0.061, 0.871] mg/100g; Protein = 19 [17, 21] %; Omega3 = 0.267 [0.088, 0.854] g/100g; Selenium = 15.4 [4.5, 48.7] μg/100g; VitaminA = 8.94 [1.81, 45.35] μg/100g; Zinc = 0.358 [0.175, 0.690] mg/100g (wet weight);
