分類 / Names
俗名 | 同種異名 | Catalog of Fishes(屬, 種) | ITIS | CoL | WoRMS | Cloffa
Elasmobranchii
板鰓亞綱 (鯊魚與魟魚) (sharks and rays) >
Carcharhiniformes (Ground sharks) >
Carcharhinidae (Requiem sharks)
Etymology: Carcharhinus: karcharos (Gr.), sharp or jagged; rhinus, an ancient name for sharks, from rhine (Gr.), rasp, both words alluding to a shark's jagged, rasp-like skin. (See ETYFish); brachyurus: a- (Gr.), not; carenatus, alternate spelling of carinatus (L.), keeled or carinate, referring to absence of dermal fold (dorsal ridge) between the dorsal fins [treated as a junior synonym of C. brachyurus by some workers]. (See ETYFish).
More on author: Günther.
Environment: milieu / climate zone / depth range / distribution range
生態學
海洋; 半鹹淡水 礁區魚類; 海洋洄游的 (Ref. 51243); 深度上下限 0 - 360 m (Ref. 58018). ; 45°N - 52°S, 122°W - 180°E
Western Atlantic: Mexico, Gulf of Mexico, Brazil to Argentina. Eastern Atlantic: off France southward and around the coast of southern Africa to central Natal, South Africa (Ref. 5578), including the Mediterranean. Possibly two separate populations in southern Africa (Ref. 3209). Western Pacific: Japan to New Zealand. Eastern Pacific: southern California, USA to the Gulf of California in Mexico and Peru.
Length at first maturity / 大小 / 重量 / 年齡
Maturity: Lm 230.0, range 245 - 240 cm
Max length : 325 cm TL 雄魚/尚未辨別雌雄; (Ref. 2334); 最大體重: 304.6 kg (Ref. 40637); 最大年齡: 30 年 (Ref. 3209)
背棘 (總數): 0; 背的軟條 (總數): 0; 臀棘 0; 臀鰭軟條: 0. A large shark to with a bluntly pointed, broad snout, narrow, bent cusps on the upper teeth, and with no interdorsal ridge (Ref. 5578). Grey to bronzy in color, white below (Ref. 5578); fins mostly plain except for dusky tips on pelvic fins, as well as dusky to black tips and rear edges on pectoral fins (Ref. 9997).
A coastal and offshore shark (Ref. 9997) found along continental margins in most tropical and temperate seas. Occasionally enters large coastal bays and inshore areas (Ref. 6390). Occasionally found near the bottom (Ref. 6808). Migratory in the northern part of its range, moving northward in spring and summer and southward in autumn and winter (Ref. 244). Feeds on pelagic and bottom bony fishes, cephalopods, and small sharks and rays (Ref. 5578). Viviparous (Ref. 50449). Undoubtedly utilized for human consumption where it occurs (Ref. 244). Implicated in shark attacks on people (Ref. 9997).
Life cycle and mating behavior
成熟度 | 繁殖 | 產卵場 | 卵 | 孕卵數 | 仔魚
Viviparous, with a yolk-sac placenta. Litter contains 7 to 20 pups (Ref. 6871, 6390). Young born at 59 - 70 cm TL (Ref. 6390). Pupping may occur at any time of the year but there is a peak in births in summer (Ref. 6390). 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)
人類使用
漁業: 低經濟; 游釣魚種: 是的
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Estimates based on models
Preferred temperature (Ref.
123201): 11.6 - 23.8, mean 17.4 °C (based on 797 cells).
Phylogenetic diversity index (Ref.
82804): PD
50 = 0.5000 [Uniqueness, from 0.5 = low to 2.0 = high].
Bayesian length-weight: a=0.00468 (0.00230 - 0.00950), b=3.08 (2.91 - 3.25), in cm total length, based on LWR estimates for this species & Genus-body shape (Ref.
93245).
營養階層 (Ref.
69278): 4.5 ±0.0 se; based on diet studies.
Generation time: 28.9 ( na - na) years. Estimated as median ln(3)/K based on 1
growth studies.
回復力 (Ref.
120179): 非常低的, 最小族群倍增時間超過14 年 (K=0.04; tm=5-20; tmax=30; Fec=7).
Fishing Vulnerability (Ref.
59153): Very high vulnerability (87 of 100).
Climate Vulnerability (Ref.
125649): High vulnerability (57 of 100).
Nutrients (Ref.
124155): Calcium = 2.54 [0.47, 14.40] mg/100g; Iron = 0.3 [0.1, 0.9] mg/100g; Protein = 23 [20, 25] %; Omega3 = 0.172 [0.060, 0.438] g/100g; Selenium = 19.4 [5.6, 61.2] μg/100g; VitaminA = 30.3 [7.9, 119.7] μg/100g; Zinc = 0.413 [0.195, 0.829] mg/100g (wet weight);
