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Carcharhinus acronotus (Poey, 1860)

Blacknose shark
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Carcharhinus acronotus   AquaMaps   Data sources: GBIF OBIS
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Classification / Names आम नाम | उपशब्द | Catalog of Fishes(वर्ग, प्रजाति) | ITIS | CoL | WoRMS | Cloffa

इलाज़मौबरांकी (शारक और रेज़) (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);  acronotus: acro-, from akron (Gr.), top, summit or peak; notus, from notos (Gr.), back, allusion not explained, perhaps referring to “raised” (translation) back at first dorsal fin. (See ETYFish).
More on author: Poey.

Environment: milieu / climate zone / depth range / distribution range पारिस्थितिकी

समुद्री प्रवाल-भित्ति संयुक्त; गहराई सीमा 9 - 64 m (Ref. 50072), usually 9 - ? m (Ref. 55176). Subtropical; 40°N - 37°S, 100°W - 33°W (Ref. 55176)

वितरण देश | ऐफ ऐ ओ क्षेत्र | Ecosystems | संयोग | Point map | भूमिका | Faunafri

Western Atlantic: North Carolina, USA to southern Brazil and Uruguay (Ref. 58839), including the Gulf of Mexico and the Caribbean.

Length at first maturity / आकार / वज़न / Age

Maturity: Lm 110.7, range 87 - 137 cm
Max length : 200 cm TL पुल्लिंग / अलिंग; (Ref. 244); अधिकतम प्रकाशित वज़न: 18.9 kg (Ref. 40637); अधिकतम सूचित उम्र: 20 वर्षो (Ref. 108669)

जीवविज्ञान     शब्द संग्रह (उदाहरणार्थ epibenthic)

Found on continental and insular shelves, mainly over sandy, shell, and coral bottoms. Feeds on small fishes, including pinfish (Sparidae) and porcupine fish. Preyed on by larger sharks. Viviparous (with a yolk-sac placenta), with 3 to 6 young per litter. Performs a 'hunch' display, with back arched, caudal lowered and head raised, as a possible threat display when confronted by divers. Utilized dried salted for human consumption. Minimum depth from Ref. 055176.

Life cycle and mating behavior Maturities | पुनरुत्पत्ति | Spawnings | Egg(s) | Fecundities | लार्वा

Viviparous, placental (Ref. 50449), with 3 to 6 young per litter (Ref. 244). Distinct pairing with embrace (Ref. 205).

Main reference Upload your references | संदर्भ | संयोजक : Compagno, Leonard J.V. | सहयोगीयो

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)

  Endangered (EN) (A2bd); Date assessed: 01 July 2019

CITES


CMS (Ref. 116361)

Not Evaluated

Threat to humans

  Harmless (Ref. 244)





Human uses

मात्स्यिकी: लघु वाणिज्य; आखेट मत्स्य: हां
FAO - Publication: search | FishSource | Sea Around Us

अधिक जानकारी

Trophic ecology
खाद्य पदार्थ
Diet compositions
Food consumptions
Food rations
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Population dynamics
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Max. ages / sizes
Length-weight rel.
Length-length rel.
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Life cycle
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इंटरनेट स्रोत

Estimates based on models

Preferred temperature (Ref. 123201): 22.2 - 28, mean 25.5 °C (based on 520 cells).
Phylogenetic diversity index (Ref. 82804):  PD50 = 0.5000   [Uniqueness, from 0.5 = low to 2.0 = high].
Bayesian length-weight: a=0.00479 (0.00221 - 0.01036), b=3.09 (2.92 - 3.26), in cm total length, based on LWR estimates for this Genus-body shape (Ref. 93245).
Trophic level (Ref. 69278):  4.4   ±0.5 se; based on diet studies.
लौटाव (Ref. 120179):  निम्न, न्यूनतम जनसंख्या दुगनी होने का समय 4.5 - 14 वर्ष। (K=0.12; tm=3; tmax=15; Fec=4).
Prior r = 0.44, 95% CL = 0.29 - 0.66, Based on 1 full stock assessment.
Fishing Vulnerability (Ref. 59153):  High vulnerability (60 of 100).
Price category (Ref. 80766):   Medium.
Nutrients (Ref. 124155):  Calcium = 4.6 [0.8, 24.8] mg/100g; Iron = 0.382 [0.095, 1.094] mg/100g; Protein = 23 [20, 25] %; Omega3 = 0.156 [0.059, 0.385] g/100g; Selenium = 13.2 [4.0, 40.1] μg/100g; VitaminA = 34.1 [11.8, 102.7] μg/100g; Zinc = 0.367 [0.171, 0.718] mg/100g (wet weight);