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Rhizoprionodon terraenovae (Richardson, 1836)

Atlantic sharpnose shark
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Rhizoprionodon terraenovae   AquaMaps   Data sources: GBIF OBIS
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Rhizoprionodon terraenovae
Picture by Flescher, D.


Mexico country information

Common names: Cazón de ley, Cazón de ley
Occurrence: native
Salinity: brackish
Abundance: | Ref:
Importance: commercial | Ref: Anonymous, 1994
Aquaculture: | Ref:
Regulations: no regulations | Ref: Anonymous, 1994
Uses: no uses
Comments: Of secondary importance to Mexican shark fisheries; a very common catch in Veracruz, Campeche and Yucatan (mostly juveniles and pre-adults); taken in smaller quantities in Quintana Roo (mostly pre-adults and adults) and Tamaulipas; probably caught in Tabasco (Ref. 13186). Marketed fresh (fillet), salt-dried, or as fish meal, liver oil; also for its skin and fins, and teeth for ornamental use (Ref. 26550).
National Checklist:
Country Information: https://www.cia.gov/library/publications/resources/the-world-factbook/geos/mx.html
National Fisheries Authority:
Occurrences: Occurrences Point map
Main Ref: Compagno, L.J.V., 1984
National Database:

Common names from other countries

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: Rhizoprionodon: rhiza (Gr.), root; prion (Gr.) saw; odon (Gr.), tooth, referring to teeth with serrated (saw-like) bases, or roots [replacement name for Rhizoprion Ogilby 1915, preoccupied by Rhizoprion Jourdan 1861 in mammals]. (See ETYFish);  terraenovae: terra (L.), earth or land; novus (L.), new, i.e., Newfoundland, Canada, where Richardson erroneously thought it occurred. (See ETYFish).
  More on author: Richardson.

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

समुद्री; खारा ड़िमरसल; गहराई सीमा 0 - 280 m (Ref. 26938), usually 0 - 10 m (Ref. 55195).   Subtropical; 43°N - 25°S, 100°W - 32°W (Ref. 55195)

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

Western Atlantic: New Brunswick, Canada to the Gulf of Mexico. Southwest Atlantic: coasts of Brazil.

Length at first maturity / आकार / वज़न / Age

Maturity: Lm 87.5, range 85 - 90 cm
Max length : 110 cm TL पुल्लिंग / अलिंग; (Ref. 37512); 110.0 cm TL (female); common length : 70.0 cm TL पुल्लिंग / अलिंग; (Ref. 37512); अधिकतम प्रकाशित वज़न: 7.3 kg (Ref. 40637); अधिकतम सूचित उम्र: 10 वर्षो (Ref. 6140)

Short description पहचान कुंजी | आकृति विज्ञान | मौरफोमैटरिक्स

Small, generally gray, streamlined shark, with long pointed snout. Posterior margin of anal fin straight or slightly concave. Second dorsal fin origin well behind anal fin origin (Ref. 26938).

जीवविज्ञान     शब्द संग्रह (उदाहरणार्थ epibenthic)

Reaches at least 103 cm TL (Ref. 244). Abundant in the continental shelves, from the intertidal to deeper waters. Often occurs close to the surf zone off sandy beaches, and also enclosed bays, sounds, and harbors, in estuaries and river mouths. Feeds on small bony fishes, shrimps, crabs, segmented worms and mollusks (gastropod feet). Viviparous, with 1 to 7 young in a litter (Ref. 27549). Size at birth about 29 to 37 cm. Utilized for human consumption. Minimum depth from Ref. 055195.

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

Distinct pairing with embrace (Ref. 205). Viviparous, placental (Ref. 50449). 1 to 7 young per litter. Larger females carry more young. Size at birth 29-37 cm. Gestation period is 10 to 11 months in the northern Gulf of Mexico. Sex ratio of near term fetuses is 1:1 (Ref. 244).

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)

  Least Concern (LC) ; Date assessed: 20 June 2019

CITES (Ref. 128078)


CMS (Ref. 116361)

Not Evaluated

Threat to humans

  Harmless




Human uses

मात्स्यिकी: निर्वाह मात्स्यिकी; आखेट मत्स्य: हां
FAO(मात्स्यिकी: production; publication : search) | FishSource | Sea Around Us

अधिक जानकारी

Trophic ecology
खाद्य पदार्थ
Diet compositions
Food consumptions
Food rations
परभक्षी
Population dynamics
Growths
Max. ages / sizes
Length-weight rel.
Length-length rel.
Length-frequencies
Mass conversions
Recruitments
Abundances
Life cycle
पुनरुत्पत्ति
Maturities
Fecundities
Spawnings
Spawning aggregations
Egg(s)
Egg developments
लार्वा
लारवल गतिकी
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देश
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Body compositions
Nutrients
Oxygen consumptions
Swimming type
Swimming speeds
Visual pigment(s)
मत्स्य आवाज़े
Diseases / Parasites
Toxicities (LC50s)
Genetics
आनुवंशिकी
Electrophoreses
Heritabilities
Human related
Aquaculture systems
जलीयकृषि रूपरेखाऐ
खींच
Ciguatera cases
Stamps, coins, misc.
References
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इंटरनेट स्रोत

Estimates based on models

Preferred temperature (Ref. 115969): 23.4 - 28, mean 27 (based on 1016 cells).
Phylogenetic diversity index (Ref. 82804):  PD50 = 0.5078   [Uniqueness, from 0.5 = low to 2.0 = high].
Bayesian length-weight: a=0.00457 (0.00277 - 0.00754), b=3.01 (2.87 - 3.15), in cm Total Length, based on LWR estimates for this species & Genus-body shape (Ref. 93245).
Trophic level (Ref. 69278):  4.4   ±0.5 se; based on diet studies.
लौटाव (Ref. 120179):  बहुत नीचे, न्यूनतम जनसंख्या दुगनी समय अवलागत 14 महीने। (K=0.19-0.45(?); tmax=10; tm=4; Fec 1-7).
Fishing Vulnerability (Ref. 59153):  Moderate to high vulnerability (50 of 100).
Climate Vulnerability (Ref. 125649):  Very high vulnerability (85 of 100).
Price category (Ref. 80766):   Medium.