Pseudocarcharias kamoharai, Crocodile shark : fisheries

Pseudocarcharias kamoharai (Matsubara, 1936)

Crocodile 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.
Pseudocarcharias kamoharai   AquaMaps   Data sources: GBIF OBIS
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Pseudocarcharias kamoharai
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Classificatie / Namen Lokale namen | Synoniemen | Catalog of Fishes(Genus, Soort(en)) | ITIS | CoL | WoRMS | Cloffa

Elasmobranchii (haaien en roggen) (sharks and rays) > Lamniformes (Mackerel sharks) > Pseudocarchariidae (Crocodile sharks)
Etymology: Pseudocarcharias: pseudo-, from pseudes (Gr.), false, proposed as a subgenus of Carcharias (Odontaspididae) (See ETYFish)kamoharai: In honor of ichthyologist Toshiji Kamohara (1901-1972), Kochi University, who secured type at a fish market and presented it to Matsubara (See ETYFish).
Eponymy: Dr Toshiji Kamohara (1901–1972) was an ichthyologist who graduated from Tokyo Imperial University (1926). [...] (Ref. 128868), visit book page.

Milieu: milieu / Klimaatzone / Diepte / verspreidingsgebied Ecologie

marien pelagic-oceanic; oceanodroom (Ref. 51243); diepte 0 - 590 m (Ref. 6871), usually 0 - 200 m (Ref. 54740). Subtropical; 40°N - 40°S, 180°W - 180°E

Verspreiding Gebieden | FAO regio's | Ecosystemen | Voorkomen | Verspreidingskaart | Introducties | Faunafri

Tropical and subtropical waters of all oceans.

Lengte bij maturiteit / Grootte / Gewicht / Leeftijd

Maturiteit: Lm 91.6, range 89 - ? cm
Max length : 110 cm TL mannelijk / geslacht onbekend; (Ref. 43278); 122.0 cm TL (female); common length : 100.0 cm TL mannelijk / geslacht onbekend; (Ref. 13569); max. gepubliceerd gewicht: 5.9 kg (Ref. 130455)

Korte beschrijving Determinatiesleutels | Morfologie | Morfometrie

Dorsale stekels (totaal) : 0; Anale stekels: 0. A medium-sized spindle-shaped shark with very large eyes lacking a nictitating membrane, long gill slits extending onto dorsal surface of head, lanceolate teeth, weak keel and precaudal pits on caudal peduncle (Ref. 6871, 43278). Small and low dorsal fins, with second dorsal fin less than half the size of the first but larger than the anal fin (Ref. 6871). Pectoral fin broad and rounded (Ref. 6871). Light or dark grey above, paler below, fins white-edged, sometimes with small white spots on body and a white blotch between mouth and gill slits (Ref. 13569).
Body shape (shape guide): elongated.

Biologie     Verklarende woordenlijst (bv. epibenthic)

An oceanic species usually found offshore and far from land but sometimes occurring inshore (Ref. 9993, 43278, 58302). Epi- and mesopelagic, with occasional near-bottom occurrences (Ref. 43278, 58302). Although considered not dangerous to people, its powerful jaws, jaw muscles and teeth invite respect. Flesh not appreciated and therefore the catch is usually discarded (Ref. 247); utilized for its large, squalene-rich liver (Ref. 9993). Feeds on small pelagic bony fishes, squids and shrimps (Ref. 5578). Ovoviviparous, embryos feeding on yolk sac and other ova produced by the mother (Ref. 50449). With 4 young in a litter, born at 40 to 43 cm TL (Ref. 12288). Maximum length for female given in Romanove et.al 1994 (Ref. 44781). Common bycatch of tuna longline fisheries, and occasionally tuna gillnet fisheries (Ref.58048).

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

Exhibit ovoviparity (aplacental viviparity), with embryos feeding on other ova produced by the mother (oophagy) after the yolk sac is absorbed (Ref. 50449). With 4 young in a litter, born at 40-43 cm (Ref. 11228).

Hoofdreferentie Upload uw referenties | 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 2025-2 (Global))

  Niet bedreigd (LC) ; Date assessed: 09 November 2018

CITES

Not Evaluated

CMS (Ref. 116361)

Not Evaluated

Gevaar voor de mens

  Harmless





Gebruik door de mens

Visserij: van minder commercieel belang
FAO - visserij: soortsprofiel, landings search; Publication: search | FishSource | Sea Around Us

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Schattingen op basis van modellen

Fylogenetische diversiteitsindex
(Ref. 82804)
PD50 = 1.5000 [Uniqueness, from 0.5 = low to 2.0 = high].
Bayesian length-weight a=0.00347 (0.00134 - 0.00899), b=3.11 (2.88 - 3.34), in cm total length, based on LWR estimates for this (Sub)family-body shape (Ref. 93245).
Trofisch niveau
(Ref. 69278)
4.5   ±0.58 se; based on food items.
Generation time 8.0 ( na - na) years. Estimated as median ln(3)/K based on 1 growth studies.
Weerstandsvermogen
(Ref. 120179)
Zeer laag, minimale populatieverdubbelingstijd meer dan 14 jaar (tm=5.1; K=0.14; tmax=13; Fec=4).
Kwetsbaarheid van de visserij
(Ref. 59153)
High to very high vulnerability (66 of 100). 🛈
Prijsklasse
(Ref. 80766)
Unknown.