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Elasmobranchii (hajar och rockor) (sharks and rays) > Carcharhiniformes (Ground sharks) > Triakidae (Houndsharks) > Triakinae
Etymology: Triakis: Greek, triakis = three times (Ref. 45335). More on authors: Müller & Henle.

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

; marina; brackvatten bottenlevande. Subtropical; 48°N - 20°N

Utbredning Länder | FAO områden | Ekosystem | Förekomster | Point map | Utplanteringar | Faunafri

Northwest Pacific: southern Siberia to Taiwan (Ref. 244). Nominal records from the Philippines (Ref. 13563).

Length at first maturity / Size / Vikt / Age

Maturity: L_m ?, range 99 - 108 cm
Max length : 150 cm TL hane/ej könsbestämd; (Ref. 244)

Found on the continental and insular shelves, often occurring in shallow water close inshore. Prefers estuaries and shallow bays, especially sandy and algal-covered areas and eelgrass flats. Feeds on small fishes and probably crustaceans and other benthic invertebrates. Often solitary, though some may cluster in resting areas on bottom. Ovoviviparous (aplacental), with 10 to 20 young in a litter. Meat is regarded as of inferior quality.

Life cycle and mating behavior Könsmognad | Reproduktion | Lek | Ägg | Fecundity | Larver

Ovoviviparous, embryos feed solely on yolk (Ref. 50449).

Main reference Upload your references | referenser | Koordinator : Compagno, Leonard J.V. | Medarbetare

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. 123251)

Least Concern (LC) ; Date assessed: 08 July 2007

CITES (Ref. 123416)

Not Evaluated

CMS (Ref. 116361)

Not Evaluated

Threat to humans

Harmless (Ref. 13563)

Human uses

Fiskeri: mindre kommeriell

FAO(Publication : search) | FishSource |

Ytterligare information

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Estimates based on models

Preferred temperature (Ref. 115969): 14.8 - 21.8, mean 18.8 °C (based on 52 cells).

Phylogenetic diversity index (Ref. 82805): PD₅₀ = 0.5312 [Uniqueness, from 0.5 = low to 2.0 = high].

Bayesian length-weight: a=0.00257 (0.00117 - 0.00566), b=3.12 (2.93 - 3.31), in cm total length, based on LWR estimates for this (Sub)family-body shape (Ref. 93245).

Trofisk nivå (Ref. 69278): 3.8 ±0.2 se; based on diet studies.

Generation time: 6.7 ( na - na) years. Estimated as median ln(3)/K based on 2 growth studies.

Resiliens (Ref. 120179): Låg, lägsta populationsfördubblingstid 4,5-14 år (Fec=10; K=0.16; tmax=20.6).

Vulnerability (Ref. 59153): High vulnerability (64 of 100) .

Price category (Ref. 80766): High.

Triakis scyllium Müller & Henle 1839