ইলাসমোব্রাঙ্কি (হাঙ্গর এবং রে) (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
বাস্তুসংস্থান
সামুদ্রিক ব্যথিডিমারসাল সমুদ্র তলদেশবিহারী; গভীরতার পরিসীমা 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.
আকৃতি / ওজন / Age
Maturity: Lm ? range ? - ? cm
Max length : 85.0 cm TL পুরুষ/ লিঙ্গ অনিধর্ারিত ; (Ref. 244); 76.0 cm TL (female)
Found on the continental slopes. Oviparous (Ref. 50449).
Life cycle and mating behavior
Maturities | প্রজনন | Spawnings | Egg(s) | Fecundities | শুককীট
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
মৎস্য: আকর্ষণবিহীণ
হাতিয়ার
Special reports
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ইন্টারনেট সুত্র
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).
ট্রফিক পর্যায়ে (Ref.
69278): 4.0 ±0.4 se; based on size and trophs of closest relatives
স্থিতিস্থাপক (Ref.
120179): অত্যন্ত কম , সর্বনিম্ন প্রজন দ্বিগুনের সময় ১৪ বৎসর (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);
