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Heterodontus ramalheira (Smith, 1949)

Whitespotted 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 ramalheira   AquaMaps   Data sources: GBIF OBIS
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Image of Heterodontus ramalheira (Whitespotted bullhead shark)
Heterodontus ramalheira
Picture by FAO

Classificatie / Names Lokale namen | Synoniemen | Catalog of Fishes(Genus, Soort(en)) | ITIS | CoL | WoRMS | Cloffa

Elasmobranchii (haaien en roggen) (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); ramalheira: In honor of João Ramalheira, captain of the trawler from which holotype was collected, and “who has brought in much valuable scientific material” [presumably a noun in apposition, without the patronymic “i”] (See ETYFish).
More on author: Smith.

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

marien demersaal; diepte 40 - 305 m (Ref. 106604), usually 100 - ? m (Ref. 43278). Deep-water; 22°N - 26°S, 30°E - 60°E

Verspreiding Landen | FAO regio's | Ecosystemen | Voorkomen | Point map | Introducties | Faunafri

Western Indian Ocean: off southern Mozambique and Natal, South Africa (Ref. 5578), also off the eastern shore of the Arabian Peninsula.

Grootte / Gewicht / Leeftijd

Maturity: Lm ?  range ? - ? cm
Max length : 64.0 cm TL mannelijk / geslacht onbekend; (Ref. 247); 83.0 cm TL (female)

Korte beschrijving Determinatiesleutels | Morfologie | Morfometrie

Dorsale stekels (totaal) : 2; Anale stekels: 0. Dark red-brown with scattered white spots (Ref. 6576).

Biologie     Verklarende woordenlijst (bv. epibenthic)

Found on the outer continental shelf and uppermost slopes (Ref. 247, 43278). Benthic (Ref. 43278). Feeds on crabs (Ref. 5578, 43278). Oviparous (Ref. 50449).

Levenscyclus en paargedrag Maturiteit | Voortplanting | Paaien | Eieren | Fecunditeit | Larven

Oviparous (Ref. 50449). Distinct pairing with embrace (Ref. 205).

Hoofdreferentie Upload your references | Referenties | Coördinator | Medewerkers

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)

Status op de Rode Lijst van het IUCN (Ref. 130435: Version 2024-1)

  Onvoldoende gegevens (DD) ; Date assessed: 24 April 2018

CITES

Not Evaluated

CMS (Ref. 116361)

Not Evaluated

Gevaar voor de mens

  Traumatogenic





Gebruik door de mens

Visserij: van geen belang; Aquarium: Publieke aquaria
FAO - visserij: soortsprofiel; Publication: search | FishSource |

Meer informatie

Trophic ecology
Voedselitems
Dieetsamenstelling
Voedselconsumptie
Food rations
Predatoren
Ecology
Ecologie
Population dynamics
Groeiparameters
Max. ages / sizes
Length-weight rel.
Length-length rel.
Lengtefrequenties
Massaconversie
Rekrutering
Abundantie
Life cycle
Voortplanting
Maturiteit
Maturity/Gills rel.
Fecunditeit
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References
Referenties

Tools

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Overzichtspagina | Puntgegevens | Lokale namen | Foto's

Internetbronnen

AFORO (otoliths) | Aquatic Commons | BHL | Cloffa | BOLDSystems | Websites from users | Bekijk FishWatcher | CISTI | Catalog of Fishes: Genus, Soort(en) | DiscoverLife | ECOTOX | FAO - visserij: soortsprofiel; Publication: search | Faunafri | Fishipedia | Fishtrace | GenBank: genoom, nucleotide | GloBI | Google Books | Google Scholar | Google | IGFA World Record | MitoFish | Otolith Atlas of Taiwan Fishes | PubMed | Reef Life Survey | Socotra Atlas | Tree of Life | Wikipedia: ga naar, zoek | World Records Freshwater Fishing | Zoological Record

Estimates based on models

Preferred temperature (Ref. 123201): 17.9 - 21.8, mean 19.1 °C (based on 15 cells).
Fylogenetische diversiteitsindex (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).
Trofisch niveau (Ref. 69278):  3.5   ±0.60 se; based on food items.
Weerstandsvermogen (Ref. 120179):  laag, minimale populatieverdubbelingstijd 4,5-14 jaar (Fec assumed to be <100).
Fishing Vulnerability (Ref. 59153):  Moderate to high vulnerability (53 of 100).