分類 / Names
共通名の | 類義語 | Catalog of Fishes(部類, 種) | ITIS | CoL | WoRMS | Cloffa
板鰓亜鋼(サメとエイ類) (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); obscurus: Latin for dark, probably referring to its darkish blue-gray body color. (See ETYFish).
More on author: Lesueur.
Environment: milieu / climate zone / depth range / distribution range
生態学
海; 汽水性の 関連する礁; 海洋回遊性 (Ref. 51243); 深さの範囲 0 - 400 m (Ref. 244), usually 200 - 400 m. Subtropical; 45°N - 46°S, 120°W - 156°E (Ref. 55186)
Western Atlantic: southern Massachusetts to Florida (USA), Georges Bank, Bahamas, Cuba, northern Gulf of Mexico, Nicaragua, southern Brazil and Uruguay (Ref. 58839). Eastern Atlantic: Canary Islands, Cape Verde, Senegal, Sierra Leone. Some records from the Mediterranean and Madeira may be based on Carcharhinus galapagensis. Indo-West Pacific: Red Sea (Ref. 5485), Mozambique and South Africa to Japan, China, Viet Nam and Australia. Eastern Pacific: southern California, USA to Gulf of California and the Revillagigedo Island. Highly migratory species.
Length at first maturity / サイズ / 重さ / 年齢
Maturity: Lm 249.5, range 220 - 300 cm
Max length : 420 cm TL オス/雌雄の選別がない; (Ref. 5578); common length : 250 cm TL オス/雌雄の選別がない; (Ref. 26999); 最大公表体重: 346.5 kg (Ref. 4699); 最大記録サイズ: 40 年 (Ref. 31395)
背面の脊椎 (合計) : 0; 肛門の骨: 0. A large shark with a broadly rounded snout, triangular saw-edged upper teeth, curved moderate-sized pectoral fins, and an interdorsal ridge (Ref. 5578). Blue-grey, lead-grey above, white below; tips of pectoral and pelvic fins, as well as lower lobe of caudal fin and dorsal fins often dusky in young, plain in adults (Ref. 9997).
Found in coastal and offshore waters but not oceanic (Ref. 5578). Adults are commonly found at depths of 200-400 m, young in shallower waters (Ref. 5485). A seasonal migratory species over parts of its range (Ref. 6871). Common component of the catch of the shark longline fishery (Ref.58048). Feeds on bottom and pelagic bony fish, sharks, skates, rays, cephalopods, gastropods, crustaceans, sometimes mammalian carrion and inorganic objects (Ref. 5578). Viviparous (Ref. 50449); with litter size number from 3-14 (Ref. 27549). Large adults are potentially dangerous (Ref. 4716, 6871). Utilized fresh, dried-salted, frozen and smoked for human consumption; hides for leather; fins for sharks-fin soup; and liver oil extracted for vitamins (Ref. 244).
Viviparous, with a yolk-sac placenta, litter size 3-14 pups (Ref. 244); 70-100 cm at birth (Ref. 6871). Gestation period of ~ 16 months (Ref.58048). 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のレッドリストの状況は (Ref. 130435)
絶滅危惧 (EN) (A2bd); Date assessed: 06 November 2018
人間に対する脅威
Traumatogenic (Ref. 4690)
Human uses
水産業: 商業; ゲームフィッシュ: はい
用具
特記事項
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インターネットの情報源
Estimates based on models
Preferred temperature (Ref.
123201): 8.7 - 18.6, mean 12.6 °C (based on 736 cells).
Phylogenetic diversity index (Ref.
82804): PD
50 = 0.5000 [Uniqueness, from 0.5 = low to 2.0 = high].
Bayesian length-weight: a=0.00759 (0.00428 - 0.01346), b=3.08 (2.93 - 3.23), in cm total length, based on LWR estimates for this species & Genus-body shape (Ref.
93245).
栄養段階 (Ref.
69278): 4.3 ±0.2 se; based on diet studies.
回復力 (Ref.
120179): 非常に低い, １４年以上の倍増期間の最小個体群 (rm=0.02; also Musick et al. 2000 (Ref.
36717)).
Prior r = 0.09, 95% CL = 0.06 - 0.13, Based on 1 data-limited stock assessment.
Fishing Vulnerability (Ref.
59153): Very high vulnerability (88 of 100).
Climate Vulnerability (Ref.
125649): High vulnerability (62 of 100).
Nutrients (Ref.
124155): Calcium = 2.25 [0.42, 12.59] mg/100g; Iron = 0.295 [0.071, 0.898] mg/100g; Protein = 23 [20, 25] %; Omega3 = 0.163 [0.056, 0.425] g/100g; Selenium = 21.7 [6.3, 69.9] μg/100g; VitaminA = 24.1 [6.3, 93.0] μg/100g; Zinc = 0.398 [0.189, 0.797] mg/100g (wet weight);
