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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); falciformis: falx (L.), scythe or sickle; forma (L.), shape or form, referring to sickle-like shape of pectoral fins [authorship often attributed to Müller & Henle, who published Bibron’s description]. (See ETYFish).
Environment: milieu / climate zone / depth range / distribution range
بوم شناسي
دريايي وابسته به آب سنگ; اقیانوس رو (Ref. 51243); تغييرات عمق 0 - 4000 m (Ref. 55180), usually 0 - 500 m (Ref. 6871). Subtropical; 42°N - 43°S, 180°W - 180°E (Ref. 55180)
Circumtropical. Western Atlantic: Massachusetts, USA to southern Brazil, including the Gulf of Mexico and the Caribbean Sea to Uruguay (Ref. 244, 58839). Eastern Atlantic: Spain, Madeira to northern Angola; St. Paul's Rocks (Ref. 13121); Cape Verde (Ref. 34514). Indo-Pacific: scattered records from the Red Sea and Natal, South Africa (Ref. 5578) to China, New Zealand, and the Caroline, Hawaiian, Phoenix and Line islands. Eastern Pacific: southern Baja California, Mexico to northern Chile. Highly migratory species.
Length at first maturity / Size / Weight / سن
Maturity: Lm 219.1, range 180 - 260 cm
Max length : 350 cm TL جنس نر / بدون خواص جنسي; (Ref. 9997); common length : 250 cm TL جنس نر / بدون خواص جنسي; (Ref. 9997); بيشينه وزن گزارش شده: 346.0 kg (Ref. 40637); بيشينه سن گزارش شده: 25 سال ها (Ref. 31395)
خارهاي باله پشتي (کل) : 0; خارهاي باله مخرجي: 0. A large, slim shark with a moderately long, flat and rounded snout, large eyes, small jaws, and oblique-cusped teeth with serrations; 2nd dorsal fin low and with greatly elongated rear tip (Ref. 5578). Grey or bluish-grey above, white below; no conspicuous fin markings (Ref. 5578). Only Carcharhinus species with an interdorsal ridge that has the dorsal fin origin behind the free rear tip of the pectoral fin (Ref. 26938).
Found abundantly near the edge of continental and insular shelves, but also in the open sea and occasionally inshore (Ref. 244). Often found in deepwater reefs and near insular slopes (Ref. 244). Littoral and epipelagic, in the open sea or near the bottom at 18-500 m (Ref. 58302). It is quick-moving and aggressive (Ref. 244). Solitary (Ref. 26340); often associated with schools of tuna (Ref. 244). Feeds mainly on fishes, but also squid, paper nautiluses, and pelagic crabs (Ref. 244; 37816). Viviparous (Ref. 50449). Regarded as dangerous to humans (Ref. 9997). Flesh utilized fresh and dried-salted for human consumption; its hide for leather; its fin for shark-fin soup; its liver for oil (Ref. 244). 2 to 14 young, 73 to 87 cm, are born per litter (Ref. 1602).
Viviparous, placental (Ref. 50449). 2-15 pups (Ref. 6871, 37816) born at 57-87 cm TL (Ref. 9997); 1-16 pups born at 55-72 cm TL. Females appear to breed every year, but there appears to be no reproductive seasonality (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)
وضعيت در فهرست قرمز IUCN (Ref. 130435)
خطر برای انسان ها
Traumatogenic (Ref. 9997)
استفاده انسانی
ماهي گيري – شيلات: با ارزش تجاري بالا
ابزارها
گزارش های ويژه
بارگيری XML
منابع اينترنتي
Estimates based on models
Preferred temperature (Ref.
123201): 12 - 28.9, mean 26.7 °C (based on 8170 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 (0.00378 - 0.00579), b=3.08 (3.04 - 3.12), in cm total length, based on LWR estimates for this species (Ref.
93245).
Trophic level (Ref.
69278): 4.5 ±0.0 se; based on diet studies.
Generation time: 9.2 (7.4 - 13.1) years. Estimated as median ln(3)/K based on 14
growth studies.
جهندگی (Ref.
120179): پايين ، كم, كمينه زمان لازم براي دو برابر شدن جمعيت 5/4 – 14 سال (rm=0.054; K=0.05-0.15; tm=6-10; tmax=25; Fec=2-14).
Prior r = 0.06, 95% CL = 0.04 - 0.09, Based on 3 data-limited stock assessments.
Fishing Vulnerability (Ref.
59153): Very high vulnerability (82 of 100).
Climate Vulnerability (Ref.
125649): Very high vulnerability (76 of 100).
Nutrients (Ref.
124155): Calcium = 2.41 [0.46, 12.84] mg/100g; Iron = 0.321 [0.080, 0.980] mg/100g; Protein = 22.8 [19.9, 25.0] %; Omega3 = 0.211 [0.078, 0.542] g/100g; Selenium = 34.5 [10.6, 105.0] μg/100g; VitaminA = 23 [7, 76] μg/100g; Zinc = 0.281 [0.138, 0.566] mg/100g (wet weight);
