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Triakis semifasciata Girard, 1855

Leopard Shark

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Triakis semifasciata
© Copyright Photographer/SFTEP, 2002
Triakis semifasciata
Triakis semifasciata
www.fao.org Copyright Michel Lamboeuf
Triakis semifasciata

español

Overview
Main identification features
  • back: dark saddles
  • flanks and fins: dark spots
Leopard houndshark

Elongate, robust humped body; snout short, bluntly rounded; mouth convex; teeth with a single large central and accessory points; 5 gill slits, last 2 over pectoral fin base; pectorals broadly triangular in adults; 2 large dorsal fins, second slightly smaller than first; first dorsal fin with oblique rear edge, center midway between pelvic than pectoral; anal fin smaller than and with origin under middle of second dorsal; eyes horizontal ovals, with ventral nictitating membranes; tail strongly asymmetrical, lower lobe without point.

Grey to grey-bronze above, white belly; large black, white centered saddles on back, large black spots scattered over lower body and fins.

Size: 210 cm.

Habitat: common in shallow tidal areas.

Depth: 0-156 m.

Temperate; Oregon to the lower 3/4 of the Gulf of California and central Mexico.


Attributes
Abundance: Common.
Cites: Not listed.
Climate Zone: North Temperate (Californian Province &/or Northern Gulf of California); Northern Subtropical (Cortez Province + Sinaloan Gap); Northern Tropical (Mexican Province to Nicaragua + Revillagigedos).
Depth Range Max: 156 m.
Depth Range Min: 0 m.
Diet: mobile benthic crustacea (shrimps/crabs); bony fishes; mobile benthic worms; mobile benthic gastropods/bivalves.
Eastern Pacific Range: Northern limit=33; Southern limit=19; Western limit=-118; Eastern limit=-104; Latitudinal range=14; Longitudinal range=14.
Egg Type: Live birth; No pelagic larva.
Feeding Group: Carnivore.
FishBase Habitat: Demersal.
Global Endemism: TEP non-endemic; East Pacific endemic; All species.
Habitat: Estuary; Mud; Soft bottom (mud, sand,gravel, beach, estuary & mangrove); Soft bottom only; Sand & gravel.
Inshore Offshore: Inshore; Inshore Only.
IUCN Red List: Conservation dependent; Listed.
Length Max: 210 cm.
Regional Endemism: Continent only; Continent; Temperate Eastern Pacific, primarily; Tropical Eastern Pacific (TEP) non-endemic; California province, primarily; All species.
Residency: Resident.
Salinity: Marine; Marine Only.
Water Column Position: Bottom; Bottom only;


Names
Scientific source:
      Integrated Taxonomic Information System

Links to other sites

References
  • Bellido-Millán, J.M. and Villavicencio-Garayzar, C.J., 2002., Pesqueria artesanal de tiburon en la region central del Golfo de California. En: Lozano-Vilano, M. L. (Ed.). Libro Jubilar en Honor al Dr. Salvador Contreras Balderas., Universidad Autonoma de Nuevo León:143-152.
  • Compagno, L.J.V., 1999., Checklist of living elasmobranchs. In Hamlett W.C. (ed.) Sharks, skates, and rays: the biology of elasmobranch fishes., The John Hopkins University Press:471-498.
  • Compagno, L.J.V., 1984., Sharks of the World. An annotated and illustrated catalogue of shark species known to date. Part 2. Carcharhiniformes. FAO Species Catalogue., FAO Fish. Synop. No 125, 4(2):251-655.
  • De la Cruz , J. , Galvan , F. , Abitia , L. A. , Rodriguez , J. and Gutierrez, F. J., 1994., Lista sistematica de los peces marinos de Bahia Magdalena, Baja California Sur (Mexico). Systematic List of marine fishes from Bahia Magdalena, Baja California Sur (Mexico)., Ciencias Marinas, 20:17-31.
  • Eschmeyer , W. N. , Herald , E. S. and Hamman, H., 1983., A field guide to Pacific coast fishes of North America from the Gulf of Alaska to Baja California. Peterson Field Guide Ser. 28., Houghton Mifflin:336pp.
  • Findley, L.T., Hendrickx, M.E., Brusca, R.C., van der Heiden, A.M., Hastings, P.A., Torre, J., 2003., Diversidad de la Macrofauna Marina del Golfo de California, Mexico., CD-ROM versión 1.0. Projecto de la Macrofauna del Golfo .  Derechos reservados de los autores y Conservación Internacional.
  • Fischer , W. , Krup , F. , Schneider , W. , Sommer , C. , Carpenter , K. E. and Niem, V. H., 1995., Guia FAO para la Identificacion de Especies de para los fines de la Pesca. Pacifico Centro-Oriental. Volumen II. Vertebrados - Parte 1., FAO2:647-1200.
  • Galván-Magaña, F., Gutiérrez-Sánchez, F., Abitia-Cárdenas, L.A., Rodríguez-Romero, J., 2000., The distribution and affinities of the shore fishes of the Baja California Sur lagoons. In Aquatic Ecosystems of Mexico: Status and Scope. Eds. M. Manuwar, S.G. Lawrence, I.F. Manuwar & D.F. Malley. Ecovision World Monograph Series., Backhuys Publishers:383-398.
  • Girard, C., 1855., Characteristics of some cartilaginous fishes of the Pacific coast of North America., Proc. Acad. Nat. Sci. Phila., 7:196-197.
  • Jordan , D.S. and Gilbert, C.H., 1880., Notes on a collection of fishes from San Diego, California., Proc. U.S. Nat. Mus., 3:23-34.
  • Love, M.S., Mecklenburg, C.W., Mecklenburg, T.A., Thorsteinson, L.K., 2005., es of the West Coast and Alaska: a checklist of North Pacific and Artic Ocena species from Baja California to the Alaska-Yukon border., U.S. Department of the Interior, U.S. Geological Survey, Biological Resources Division, 288pp.
  • Madrid Vera , J. , Ruíz Luna , A. and Rosado Bravo, I., 1998., Peces de la plataforma continental de Michoacán y sus relaciones regionales en el Pacífico mexicano., Revista de Biologia Tropical, 42(2):267-276.
  • Osburn , R. C. and Nichols, J. T., 1916., Shore Fishes Collected by the 'Albatross' Expedition in Lower California with Descriptions of New Species., Bull. Amer. Mus. Nat. Hist., 35:139-181.
  • Pondella II, D.J., Gintert, B.E., Cobb, J.R., Allen, L.G., 2005., Biogeography of the nearshore rocky-reef fishes at the southern and Baja California islands., Journal of Biogeography, 32:187-201.
  • Van der Heiden , A. M. and Findley, L. T., 1988., Lista de los peces marinos del sur de Sinaloa, México., Anales del Centro de Ciencias del Mar y Limnologia de la Universidad Autonoma Nacional de Mexico, 15:209-224.

Acknowledgements

I thank Ashley MacDonald and John Pickering, University of Georgia, for technical support in building this page.



Following modified from CalPhotos
   
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CalPhotos     Photo Database

 

Number of matches : 7
Query: SELECT * FROM img WHERE ready=1 and taxon like "Triakis semifasciata%" and (lifeform != "specimen_tag" OR lifeform != "Animal") ORDER BY taxon

Click on the thumbnail to see an enlargement

Triakis semifasciata
UCMP specimen card
ID: 2222 0704 0051 0028 [detail]
© University of California Museum of Paleontology

Triakis semifasciata
UCMP specimen card
ID: 2222 0704 0051 0029 [detail]
© University of California Museum of Paleontology

Triakis semifasciata
UCMP specimen card
ID: 2222 0804 0009 0038 [detail]
© University of California Museum of Paleontology

Triakis semifasciata
UCMP specimen card
ID: 2222 0804 0009 0039 [detail]
© University of California Museum of Paleontology

Triakis semifasciata
Triakis semifasciata
Leopard Shark
ID: 0000 0000 0305 0023 [detail]
© 2005 Joseph Dougherty/ecology.org

Triakis semifasciata
Triakis semifasciata
Leopard Shark
ID: 0000 0000 0305 0837 [detail]
© 2005 John White

Triakis semifasciata
Triakis semifasciata
Leopard Shark
ID: 0000 0000 1008 0903 [detail]
© 2008 Tammy Ward

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Following modified from FishBase
   Top | See original

Triakis semifasciata   Girard, 1855

Leopard shark
Catalog of Fishes ( gen. , sp. ) | ITIS | CoL
Classification
Elasmobranchii | Carcharhiniformes | Triakidae | Triakinae
Synonyms
Mustelus felis , ... more
Common names
Virli léopard , Tollo leopardo , Tiburón leopardo , ... more
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Main reference
Compagno, L.J.V. 1984. (Ref. 244 )
Other references | Biblio | Coordinator : Compagno, Leonard J.V. | Collaborators
Size / Weight / Age
Max length : 198 cm TL male/unsexed; (Ref. 244 ); 180 cm TL (female); common length : 160 cm TL male/unsexed; (Ref. ); max. published weight: 18.4 kg (Ref. 40637 ); max. reported age: 30 years (Ref. 6145 )
Length at first maturity
L m 105.0 , range 100 - 129 cm
Environment
Demersal; brackish; marine; depth range ? - 91 m (Ref. 9253 ), usually ? - 6 m (Ref. 55312 )
Climate / Range
Subtropical; 45°N - 19°N, 126°W - 105°W (Ref. 55312 )
Distribution
Eastern Pacific: Oregon, USA to the Gulf of California.
Countries | FAO areas | Ecosystems | Occurrences | Introductions
Biology
    Glossary (e.g. 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.
IUCN Red List Status (Ref. 57073 )
Threat to humans
  Lower Risk: conservation dependent (LR/cd)     Harmless
Human uses
Fisheries: commercial; gamefish: yes; aquarium: commercial
More information
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FAO areas
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Eggs
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Age/Size
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Length-weight
Length-length
Length-frequencies
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Morphology
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Larval dynamics
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Tools
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Internet sources
Estimation of some characteristics with mathematical models
Phylogenetic diversity index (Ref. 82805 )
PD 50 = 0.5312
Trophic Level (Ref. 69278 )
3.66 s.e. 0.53 Based on diet studies.
Resilience (Ref. 69278 )
Very Low, minimum population doubling time more than 14 years (K=0.07-0.09; tm=11-21; tmax=30; Fec=4-12)
Vulnerability (Ref. 59153 )
Price category (Ref. 80766 )
Very high vulnerability (80 of 100)

Entered by Carpenter, Kent E. Modified by Luna, Susan M.




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Page last modified by : celloran - 20 April 2010

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