इलाज़मौबरांकी (शारक और रेज़) (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); manis: Latin for ghost or shade of the departed, referring to its grayish-white color. (See ETYFish).
Environment: milieu / climate zone / depth range / distribution range
पारिस्थितिकी
समुद्री बाथीड़िमरसल; गहराई सीमा 600 - 1900 m (Ref. 55584). Deep-water; 60°N - 40°N
Northwest Atlantic: off Massachusetts, USA. Northeast Atlantic: Porcupine Bank west of Ireland. Nominal records of Apristurus profundurum from off Mauritania (Ref. 6479) possibly pertain to this species also.
आकार / वज़न / Age
Maturity: Lm ? range ? - ? cm
Max length : 85.0 cm TL पुल्लिंग / अलिंग; (Ref. 244); 76.0 cm TL (female)
Found on the continental slopes. Oviparous (Ref. 50449).
Life cycle and mating behavior
Maturities | पुनरुत्पत्ति | Spawnings | Egg(s) | Fecundities | लार्वा
Oviparous, 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
मात्स्यिकी: कोई रुचि बग़ैर
साधन
Special reports
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इंटरनेट स्रोत
Estimates based on models
Preferred temperature (Ref.
123201): 3.1 - 3.9, mean 3.7 °C (based on 6 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).
Trophic level (Ref.
69278): 4.0 ±0.4 se; based on size and trophs of closest relatives
लौटाव (Ref.
120179): बहुत नीचे, न्यूनतम जनसंख्या दुगनी समय अवलागत 14 महीने। (Fec assumed to be <10).
Fishing Vulnerability (Ref.
59153): Moderate to high vulnerability (54 of 100).
Nutrients (Ref.
124155): Calcium = 8.63 [1.58, 52.32] mg/100g; Iron = 0.326 [0.073, 1.122] mg/100g; Protein = 18.8 [16.7, 21.0] %; Omega3 = 0.234 [0.089, 0.599] g/100g; Selenium = 17 [5, 57] μg/100g; VitaminA = 5.85 [1.19, 27.20] μg/100g; Zinc = 0.287 [0.143, 0.534] mg/100g (wet weight);
