Classification / Names Populärnamn | synonymer | Catalog of Fishes(Släkte, Arter) | ITIS | CoL | WoRMS | Cloffa

Elasmobranchii (hajar och rockor) (sharks and rays) > Heterodontiformes (Bullhead and horn sharks) > Heterodontidae (Bullhead, horn, or Port Jackson sharks)
Etymology: Heterodontus: heteros (Gr.), different; odontos (Gr.), tooth, referring to pointy teeth (for clutching prey) at front of jaws, different than rounded molar-like teeth (for grinding hard-shelled invertebrates) at the back. (See ETYFish); galeatus: Latin for helmeted, probably referring to high, enlarged supraorbital ridges or crest. (See ETYFish).
More on author: Günther.

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

marina revassocierade; djupintervall 0 - 93 m (Ref. 54545). Temperate; 27°S - 35°S, 150°E - 155°E

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

Western Pacific: eastern Australia.

Length at first maturity / Size / Vikt / Age

Maturity: L_m ?, range 70 - ? cm
Max length : 152 cm TL hane/ej könsbestämd; (Ref. 247); common length : 122 cm TL hane/ej könsbestämd; (Ref. 247); rapporterad maxålder: 12 år (Ref. 72467)

Short description Morfologi | Morfometri

Taggstrålar i ryggfenan (totalt): 2; Mjukstrålar i ryggfenan (totalt): 0; Taggstrålar i analfenan 0; Mjukstrålar i analfenan: 0. Body with broad blackish bands or saddle markings (Ref. 9838).

A moderately common benthic and epibenthic shark found on the continental shelf (Ref. 247, 43278). Occurs from close inshore to about 93 m depth (Ref. 247, 43278). Feeds primarily on sea urchins, but also on crustaceans, mollusks, and small fishes (Ref. 31369). Oviparous, egg cases spirally flanged and with long tendrils (Ref. 6871). Hatches at about 22 cm (Ref. 6871).

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

Oviparous, paired eggs are laid. Embryos feed solely on yolk (Ref. 50449). Distinct pairing with embrace (Ref. 205).

Main reference Upload your references | referenser | Koordinator | 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 1 - Hexanchiformes to Lamniformes. FAO Fish. Synop. 125(4/1):1-249. Rome, FAO. (Ref. 247)

IUCN Red List Status (Ref. 130435)

Least Concern (LC) ; Date assessed: 03 May 2015

CITES

Not Evaluated

CMS (Ref. 116361)

Not Evaluated

Threat to humans

Traumatogenic

Human uses

Fiskeri: mindre kommeriell

FAO - fiskeri: species profile; Publication: search | FishSource |

Ytterligare information

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Estimates based on models

Preferred temperature (Ref. 123201): 20.2 - 24, mean 21.8 °C (based on 16 cells).

Phylogenetic diversity index (Ref. 82804): PD₅₀ = 0.5059 [Uniqueness, from 0.5 = low to 2.0 = high].

Bayesian length-weight: a=0.00380 (0.00166 - 0.00872), b=3.15 (2.95 - 3.35), in cm total length, based on LWR estimates for this (Sub)family-body shape (Ref. 93245).

Trofisk nivå (Ref. 69278): 3.7 ±0.53 se; based on food items.

Resiliens (Ref. 120179): Mycket låg, lägsta populationsfördubblingstid mer än 14 år (tm=11.8).

Fishing Vulnerability (Ref. 59153): Very high vulnerability (90 of 100).

Price category (Ref. 80766): Unknown.

Nutrients (Ref. 124155): Calcium = 2.87 [0.37, 11.82] mg/100g; Iron = 0.113 [0.027, 0.319] mg/100g; Protein = 19.5 [17.2, 21.5] %; Omega3 = 0.198 [0.078, 0.467] g/100g; Selenium = 7.8 [2.2, 24.7] μg/100g; VitaminA = 33.2 [8.1, 135.9] μg/100g; Zinc = 0.439 [0.206, 0.907] mg/100g (wet weight);

Heterodontus galeatus (Günther, 1870)