Lớp phụ Cá sụn (cá mập và cá đuối) (sharks and rays)
(Ground sharks) > Carcharhinidae
Etymology: Carcharhinus: Greek, karcharos = sharpen + Greek, rhinos = nose (Ref. 45335).
Environment: milieu / climate zone / depth range / distribution range
Sinh thái học
; Biển Cùng sống ở rạn san hô; Mức độ sâu 1 - 286 m (Ref. 58302), usually 30 - 180 m (Ref. 37816). Tropical; 36°N - 34°S, 180°W - 180°E (Ref. 55181)
Circumtropical with a preference for waters around oceanic islands. Eastern Atlantic: including St. Paul's Rocks (Refs. 13121, 52289). Western Indian Ocean: including Walter's Shoal, south of Madagascar. Western Pacific: including Middleton and Elizabeth Reefs. Eastern Pacific: Galápagos (Ref. 58896).
Length at first maturity / Bộ gần gũi / Khối lượng (Trọng lượng) / Age
Maturity: Lm ?, range 215 - 245 cm
Max length : 370 cm TL con đực/không giới tính; (Ref. 1602); common length : 300 cm TL con đực/không giới tính; (Ref. 9253); Khối lượng cực đại được công bố: 85.5 kg (Ref. 40637); Tuổi cực đại được báo cáo: 24 các năm (Ref. 31395)
Các tia vây lưng cứng (tổng cộng): 0; Các vây lưng mềm (tổng cộng): 0; Tia cứng vây hậu môn 0; Tia mềm vây hậu môn: 0. Low inter-dorsal ridge present (Ref.9997). Dark grey above, light below, fins plain or with slightly dusky tips (Ref. 9997).
A common but habitat-limited tropical shark found close inshore to well as offshore near or on insular or continental shelves (Ref. 244). Prefers clear water with coral and rocky bottoms (Ref. 244). Although a coastal pelagic species, it is capable of crossing considerable distances of open ocean between islands (at least 50 km) (Ref. 244). Juveniles restricted to shallower water, in 25 m or less (Ref. 244; 37816). Found in superficial aggregations (Ref. 244). Tends to feed near the bottom but may take bait from the surface (Ref. 5485). Feeds mainly on bottom fishes, also squid and octopi (Ref. 244). In the Galapagos Is. it preys on sea lions and marine iguanas (Ref. 28023). Aggressive and dangerous to people (Ref. 9997). Viviparous (Ref. 50449). 6 to 16 young of 57 to 80 cm are born per litter (Ref. 1602).
Viviparous, with a yolk sac placenta (Ref. 244). 6 to 16 young born at 60-80 cm (Ref. 26346). 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 2 - Carcharhiniformes. FAO Fish. Synop. 125(4/2):251-655. Rome: FAO. (Ref. 244)
IUCN Red List Status (Ref. 123251)
CITES (Ref. 123416)
Threat to humans
Traumatogenic (Ref. 4690)
Các nghề cá: buôn bán nhỏ
Các công cụ
Các nguồn internet
Estimates based on models
Preferred temperature (Ref. 115969
): 15 - 28.2, mean 23.8 °C (based on 1899 cells).
Phylogenetic diversity index (Ref. 82805
= 0.5000 [Uniqueness, from 0.5 = low to 2.0 = high].
Bayesian length-weight: a=0.00479 (0.00219 - 0.01045), b=3.09 (2.92 - 3.26), in cm total length, based on LWR estimates for this Genus-body shape (Ref. 93245
Mức dinh dưỡng (Ref. 69278
): 4.2 ±0.4 se; based on diet studies.
Thích nghi nhanh (Ref. 120179
): Rất thấp, thời gian nhân đôi của chủng quần tối thiểu là hơn 14 năm (Fec=4).
Vulnerability (Ref. 59153
): Very high vulnerability (84 of 100) .
Nutrients (Ref. 124155
): Calcium = 6.25 [0.84, 22.96] mg/100g ; Iron = 0.331 [0.095, 0.929] mg/100g ; Protein = 22.1 [19.0, 24.5] % ; Omega3 = 0.1 [0.0, 0.2] g/100g ; Selenium = 40.7 [10.4, 109.3] μg/100g ; VitaminA = 50.1 [17.9, 139.7] μg/100g ; Zinc = 0.454 [0.208, 0.914] mg/100g (wet weight);