Heterodontus galeatus, Crested hornshark : fisheries

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Related species
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  Heterodontus
- Species in
  Heterodontidae
- - Classification -
- Heterodontidae
- Heterodontiformes
- Elasmobranchii
- Chordata
- Animalia

Heterodontus galeatus (Günther, 1870)

Crested hornshark

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Native range | All suitable habitat | Point map | Year 2050

This map was computer-generated and has not yet been reviewed.

Heterodontus galeatus AquaMaps Data sources: GBIF OBIS

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Image of Heterodontus galeatus (Crested hornshark)

Heterodontus galeatus
Female picture by Atkinson, W.

Classification / Names Common names | Synonyms | Catalog of Fishes(genus, species) | ITIS | CoL | WoRMS | Cloffa

Elasmobranchii (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 Ecology

Marine; reef-associated; depth range 0 - 93 m (Ref. 54545). Temperate; 27°S - 35°S, 150°E - 155°E

Distribution Countries | FAO areas | Ecosystems | Occurrences | Point map | Introductions | Faunafri

Western Pacific: eastern Australia.

Length at first maturity / Size / Weight / Age

Maturity: L_m ?, range 70 - ? cm
Max length : 152 cm TL male/unsexed; (Ref. 247); common length : 122 cm TL male/unsexed; (Ref. 247); max. reported age: 12 years (Ref. 72467)

Short description Identification keys | Morphology | Morphometrics

Dorsal spines (total): 2; Anal spines: 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 Maturity | Reproduction | Spawning | Eggs | Fecundity | Larvae

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

Main reference Upload your references | References | Coordinator | Collaborators

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: Version 2024-2)

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

CITES

Not Evaluated

CMS (Ref. 116361)

Not Evaluated

Threat to humans

Traumatogenic

Human uses

Fisheries: minor commercial

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

More information

Trophic ecology
Food items
Diet composition
Food consumption
Food rations
Predators

Ecology
Ecology

Population dynamics
Growth parameters
Max. ages / sizes
Length-weight rel.
Length-length rel.
Length-frequencies
Mass conversion
Recruitment
Abundance

Life cycle
Reproduction
Maturity
Maturity/Gills rel.
Fecundity
Spawning
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Eggs
Egg development
Larvae
Larval dynamics

Distribution
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BRUVS - Videos

Anatomy
Gill area
Brain
Otolith

Physiology
Body composition
Nutrients
Oxygen consumption
Swimming type
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Visual pigments
Fish sound
Diseases & Parasites
Toxicity (LC50s)

Genetics
Genetics
Heterozygosity
Heritability

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Ciguatera cases
Stamps, coins, misc.

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Summary page | Point data | Common names | Photos

Internet sources

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 (0.00165 - 0.00876), b=3.15 (2.95 - 3.35), in cm total length, based on LWR estimates for this (Sub)family-body shape (Ref. 93245).

Trophic level (Ref. 69278): 3.7 ±0.53 se; based on food items.

Resilience (Ref. 120179): Very Low, minimum population doubling time more than 14 years (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);

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