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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); nasutus: Latin for large-nosed, referring to its elongated snout (See ETYFish).
Environment: milieu / climate zone / depth range / distribution range
Sinh thái học
Biển Tầng đáy biển sâu; Mức độ sâu 400 - 925 m (Ref. 244). Deep-water; 9°N - 28°S
Eastern Pacific: Gulf of Panama, Ecuador and central Chile. Also nominally recorded from the northeast Atlantic off Morocco, but identification uncertain.
Bộ gần gũi / Khối lượng (Trọng lượng) / Age
Maturity: Lm ?  range ? - ? cm
Max length : 70.0 cm TL con đực/không giới tính; (Ref. 9996)
Found on the upper continental slopes. Oviparous (Ref. 50449).
Life cycle and mating behavior
Chín muồi sinh dục | Sự tái sinh sản | Đẻ trứng | Các trứng | Sự sinh sản | Ấu trùng
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: Version 2024-2)
Threat to humans
Harmless
Human uses
Các nghề cá: không ích lợi (thú vị)
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Estimates based on models
Phylogenetic diversity index (Ref.
82804): PD
50 = 0.5000 [Uniqueness, from 0.5 = low to 2.0 = high].
Bayesian length-weight: a=0.00355 (0.00175 - 0.00721), b=3.08 (2.90 - 3.26), in cm total length, based on LWR estimates for this (Sub)family-body shape (Ref.
93245).
Mức dinh dưỡng (Ref.
69278): 3.1 ±0.30 se; based on food items.
Thích nghi nhanh (Ref.
120179): Rất thấp, thời gian nhân đôi của chủng quần tối thiểu là hơn 14 năm (Fec assumed to be <10).
Fishing Vulnerability (Ref.
59153): Moderate to high vulnerability (48 of 100).
Nutrients (Ref.
124155): Calcium = 8.92 [1.53, 55.68] mg/100g; Iron = 0.366 [0.077, 1.297] mg/100g; Protein = 16.6 [13.4, 19.7] %; Omega3 = 0.184 [0.072, 0.455] g/100g; Selenium = 14.1 [4.3, 47.2] μg/100g; VitaminA = 12.2 [2.4, 62.5] μg/100g; Zinc = 0.405 [0.191, 0.791] mg/100g (wet weight);