Heterodontus quoyi, Galapagos bullhead shark

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Heterodontus quoyi (Fréminville, 1840)

Galapagos bullhead shark
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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 quoyi   AquaMaps   Data sources: GBIF OBIS
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Image of Heterodontus quoyi (Galapagos bullhead shark)
Heterodontus quoyi
Picture by Murch, A.

Classificação / Names Nomes comuns | Sinónimos | Catalog of Fishes(Género, Espécies) | ITIS | CoL | WoRMS | Cloffa

Elasmobranchii (tubarões e raias) (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);  quoyi: In honor of naval surgeon and naturalist Jean René Constant Quoy (1790‒1869), for his friendship, his “tireless zeal and extensive knowledge” (translation) of zoology, and for lessons and advice that have guided Fréminville in his study of science. (See ETYFish).

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

marinhas associadas(os) a recifes; intervalo de profundidade 3 - 40 m (Ref. 5227), usually 16 - 30 m (Ref. 54549). Tropical; 0°S - 10°S, 90°W - 71°W

Distribuição Países | Áreas FAO | Ecossistemas | Ocorrências | Point map | Introduções | Faunafri

Eastern Pacific: Peru (including offshore islands) and the Galapagos Islands. There might be another Heterodontus species from Peru which is Heterodontus peruanus, but these two cannot be separated as of this time for lack of materials examined.

Tamanho / Peso / Idade

Maturity: Lm ?  range ? - ? cm
Max length : 107 cm SL macho/indeterminado; (Ref. 5227)

Biologia     Glossário (ex. epibenthic)

Inhabits sand flat and rocky, boulder strewn reef areas, with sand between outcroppings in inshore continental and insular waters. Rests motionless on the bottom. Is docile, non-aggressive and a poor swimmer (Ref. 5227). Nocturnal (Ref. 43278). Feeds on shellfish, crabs, and small invertebrates (Ref. 28023). Oviparous (Ref. 50449). Size at birth (for a newly hatched male) is 17 cm.

Life cycle and mating behavior Maturidade | Reprodução | Desova | Ovos | Fecundidade | Larvas

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

Referência principal Upload your references | Referências | Coordenador | Colaboradores

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)

Categoria na Lista Vermelha da IUCN (Ref. 130435)

  Preocupação menor (LC) ; Date assessed: 24 January 2020

CITES

Not Evaluated

CMS (Ref. 116361)

Not Evaluated

Ameaça para o homem

  Traumatogenic





Utilização humana

Pescarias: sem interesse
FAO - pescarias: perfil da espécie; Publication: search | FishSource |

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Fontes da internet

AFORO (otoliths) | Aquatic Commons | BHL | Cloffa | BOLDSystems | Websites from users | Consultar FishWatcher | CISTI | Catalog of Fishes: Género, Espécies | DiscoverLife | ECOTOX | FAO - pescarias: perfil da espécie; Publication: search | Faunafri | Fishipedia | Fishtrace | GenBank: genoma, nucleotídeo | GloBI | Google Books | Google Scholar | Google | IGFA World Record | MitoFish | Otolith Atlas of Taiwan Fishes | PubMed | Reef Life Survey | Socotra Atlas | Árvore da vida | Wikipedia: ir para, procurar | World Records Freshwater Fishing | Registo zoológico

Estimates based on models

Preferred temperature (Ref. 123201): 17.7 - 23.2, mean 20.5 °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).
Nível Trófico (Ref. 69278):  3.5   ±0.50 se; based on food items.
Resiliência (Ref. 120179):  Baixo, tempo mínimo de duplicação da população 4,5 - 14 anos (Fec assumed to be <100).
Fishing Vulnerability (Ref. 59153):  Very high vulnerability (78 of 100).
Nutrients (Ref. 124155):  Calcium = 12.5 [2.4, 47.7] mg/100g; Iron = 0.364 [0.088, 1.020] mg/100g; Protein = 19.2 [17.1, 21.3] %; Omega3 = 0.0756 [, ] g/100g; Selenium = 27.9 [8.7, 80.7] μg/100g; VitaminA = 53.7 [17.4, 155.9] μg/100g; Zinc = 0.969 [0.473, 1.973] mg/100g (wet weight);