Triakis semifasciata, Leopard shark : fisheries, gamefish, aquarium

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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.

Klassifizierung / Names Namen | Synonyme | Catalog of Fishes(Gattung, Arten) | ITIS | CoL | WoRMS | Cloffa

Elasmobranchii (Haie und Rochen) (sharks and rays) > Carcharhiniformes (Ground sharks) > Triakidae (Houndsharks) > Triakinae
Etymology: Triakis: Greek, triakis = three times (Ref. 45335).  More on author: Girard.

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

; seewasser; brackwasser demersal; tiefenbereich 0 - 156 m (Ref. 96339), usually ? - 6 m (Ref. 55312).   Subtropical; 45°N - 19°N, 126°W - 105°W (Ref. 55312)

Verbreitung Länder | FAO Gebiete | Ecosystems | Vorkommen | Point map | Einführungen | Faunafri

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

Length at first maturity / Size / Gewicht / Alter

Maturity: Lm 105.0, range 100 - 129 cm
Max length : 198 cm TL Männchen/unbestimmt; (Ref. 244); 180.0 cm TL (female); common length : 160 cm TL Männchen/unbestimmt; (Ref. ); max. veröff. Gewicht: 18.4 kg (Ref. 40637); max. veröff. Alter: 30 Jahre (Ref. 6145)

Biologie     Fachlexikon (Englisch) (z.B. 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 Geschlechtsreife | Fortpflanzung | Ablaichen | Eier | Fecundity | Larven

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

Hauptreferenz Upload your references | Referenzen | Koordinator : Compagno, Leonard J.V. | Partner

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 Rote Liste Status (Ref. 123251)

  nicht bedroht (LC) ; Date assessed: 18 December 2014

CITES (Ref. 123416)

Not Evaluated

CMS (Ref. 116361)

Not Evaluated

Bedrohung für Menschen

  Harmless





Nutzung durch Menschen

Fischereien: kommerziell; Sportfisch: ja; Aquarium: Kommerziell
FAO - Fischereien: Artbeschreibung; Publication: search | FishSource | Sea Around Us

Mehr Information

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Eier
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Internet Quellen

Aquatic Commons | BHL | Cloffa | Websites from users | FishWatcher Einträge suchen | CISTI | Catalog of Fishes: Gattung, Arten | DiscoverLife | ECOTOX | FAO - Fischereien: Artbeschreibung; Publication: search | Faunafri | Fishipedia | Fishtrace | GenBank: Genom, nucleotide | GloBI | Google Books | Google Scholar | Google | IGFA World Record | MitoFish | Otolith Atlas of Taiwan Fishes | Öffentliche Aquarien | PubMed | Reef Life Survey | Socotra Atlas | Tree of Life | Wikipedia: Gehe zu, Suchen | World Records Freshwater Fishing | Zoological Record

Estimates based on models

Preferred temperature (Ref. 115969): 12.8 - 24, mean 20.4 °C (based on 131 cells).
Phylogenetic diversity index (Ref. 82805):  PD50 = 0.5312   [Uniqueness, from 0.5 = low to 2.0 = high].
Bayesian length-weight: a=0.00251 (0.00124 - 0.00508), b=3.11 (2.94 - 3.28), in cm total length, based on LWR estimates for this species & (Sub)family-body (Ref. 93245).
Trophic level (Ref. 69278):  3.7   ±0.2 se; based on diet studies.
Generation time: 15.0 ( na - na) years. Estimated as median ln(3)/K based on 2 growth studies.
Widerstandsfähigkeit (Ref. 120179):  sehr niedrig, Verdopplung der Population dauert mehr als 14 Jahre. (K=0.07-0.09; tm=11-21; tmax=30; Fec=4-12).
Verwundbarkeit (Ref. 59153):  Very high vulnerability (80 of 100) .
Preiskategorie (Ref. 80766):   High.