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Triakis semifasciata Girard, 1855

Leopard shark
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Image of Triakis semifasciata (Leopard shark)
Triakis semifasciata
Picture by Moreau, J.


Mexico country information

Common names: Tiburón leopardo, Tiburón leopardo
Occurrence: native
Salinity: marine
Abundance: | Ref:
Importance: minor commercial | Ref: De la Cruz Agüero, J., M. Arellano Martínez, V.M. Cota Gómez and G. de la Cruz-Agüero, 1997
Aquaculture: | Ref:
Regulations: | Ref:
Uses: no uses
Comments: May be found along western coast of Baja California and throughout the Gulf of California (Ref. 9253). Also from Mazatlan (Ref. 96339). Recorded from several localities in Baja California Sur (Ref. 37955). Catches are little-known, but presumably occur (Ref. 244).
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 Nombres comunes | Sinónimos | Catalog of Fishes(Género, Especie) | ITIS | CoL | WoRMS | Cloffa

Elasmobranquios (tiburones y rayas) (sharks and rays) > Carcharhiniformes (Ground sharks) > Triakidae (Houndsharks) > Triakinae
Etymology: Triakis: tri-, from tres (L.), three; akis (Gr.), point, referring to each tooth consisting of one large central cusp flanked on by both sides by a small cusplet. (See ETYFish);  semifasciata: semi-, from semis (L.), half; fasciatus (L.), banded, referring to striking black saddle marks that cover only dorsal half of body. (See ETYFish).
  More on author: Girard.

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

marino; salobre demersal; rango de profundidad 0 - 156 m (Ref. 96339), usually ? - 6 m (Ref. 55312).   Subtropical; 45°N - 19°N, 126°W - 105°W (Ref. 55312)

Distribución Países | Áreas FAO | Ecosistemas | Ocurrencias, apariciones | Point map | Introducciones | Faunafri

Eastern Pacific: Oregon, USA to the Gulf of California.

Length at first maturity / Tamaño / Peso / Age

Maturity: Lm 109.8, range 100 - 129 cm
Max length : 198 cm TL macho / no sexado; (Ref. 244); 180.0 cm TL (female); common length : 160 cm TL macho / no sexado; (Ref. ); peso máximo publicado: 18.4 kg (Ref. 40637); edad máxima reportada: 30 años (Ref. 6145)

Biología     Glosario (por ej. epibenthic)

Found in shallow water from the intertidal to deeper waters, most commonly in enclosed muddy bays; including estuaries and lagoons (S. Wilson, pers. comm.). Prefer sandy areas, mud flats, and bottoms strewn with rocks near rocky reefs and kelp beds. Feed mainly on crabs, shrimps, bony fish, fish eggs, clam necks and innkeeper worms among a large variety of food in its diet. Form mixed schools. Ovoviviparous (aplacental), with 4 to 29 young in a litter. Utilized fresh or frozen for human consumption.

Life cycle and mating behavior Maturities | Reproducción | Spawnings | Egg(s) | Fecundities | Larva

Females produce 6-24 young, which are 20-23 cm long at birth (Ref. 43439). Ovoviviparous, embryos feed solely on yolk (Ref. 50449).

Main reference Upload your references | Referencias | Coordinador : Compagno, Leonard J.V. | Colaboradores

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: 18 December 2014

CITES (Ref. 128078)

Not Evaluated

CMS (Ref. 116361)

Not Evaluated

Threat to humans

  Harmless




Human uses

Pesquerías: comercial; pesca deportiva: si; Acuario: Comercial
FAO(pesquerías: species profile; publication : search) | FishSource | Sea Around Us

Más información

Trophic ecology
componentes alimenticios
Diet compositions
Food consumptions
Food rations
Despredadores
Ecology
Ecología
Home ranges
Population dynamics
Growths
Max. ages / sizes
Length-weight rel.
Length-length rel.
Length-frequencies
Mass conversions
Recruitments
Abundances
Life cycle
Reproducción
Maturities
Fecundities
Spawnings
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Egg(s)
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Larva
Dinámica larvaria
Distribution
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Tipo de natación
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Visual pigment(s)
Sonidos de peces
Diseases / Parasites
Toxicities (LC50s)
Genetics
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Perfiles de acuicultura
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Estimates based on models

Preferred temperature (Ref. 115969): 12.8 - 24, mean 20.4 (based on 131 cells).
Phylogenetic diversity index (Ref. 82804):  PD50 = 0.5312   [Uniqueness, from 0.5 = low to 2.0 = high].
Bayesian length-weight: a=0.00229 (0.00119 - 0.00443), b=3.13 (2.97 - 3.29), in cm Total Length, based on LWR estimates for this species & (Sub)family-body (Ref. 93245).
Nivel trófico (Ref. 69278):  3.7   ±0.2 se; based on diet studies.
Resiliencia (Ref. 120179):  Muy bajo, población duplicada en un tiempo mínimo superior a 14 años (K=0.07-0.09; tm=11-21; tmax=30; Fec=4-12).
Fishing Vulnerability (Ref. 59153):  Very high vulnerability (80 of 100).
Price category (Ref. 80766):   High.