Cephaloscyllium umbratile, Blotchy swell shark : aquarium

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Cephaloscyllium umbratile Jordan & Fowler, 1903

Blotchy swell shark
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Native range | All suitable habitat | Point map | Year 2100
This map was computer-generated and has not yet been reviewed.
Cephaloscyllium umbratile   AquaMaps   Data sources: GBIF OBIS
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Image of Cephaloscyllium umbratile (Blotchy swell shark)
Cephaloscyllium umbratile
Picture by Shao, K.T.

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

Elasmobranchii (haaien en roggen) (sharks and rays) > Carcharhiniformes (Ground sharks) > Scyliorhinidae (Cat sharks)
Etymology: Cephaloscyllium: Greek, kephale = head + skylion = dogfish (Ref. 80388);  umbratile: Named from the Latin 'umbra' meaning shaded (Ref. 80388).  More on authors: Jordan & Fowler.

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

; marien rifbewoner; diepteverspreiding 20 - 500 m (Ref. 94801).   Subtropical

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

Western North Pacific: Japan Sea, East China Sea (Japan, Korea, China and Taiwan) (Ref. 94801); possibly up to New Zealand. Similar to Cephaloscyllium isabellum but the color pattern is different.

Length at first maturity / Size / Gewicht / Leeftijd

Maturity: Lm ?, range 95 - 101.1 cm
Max length : 120 cm TL mannelijk/geslacht niet bekend; (Ref. 95495); 110.0 cm (female)

Korte beschrijving Morfologie | Morfometrie

Overall color is lighter than C. isabellum, with irregular saddles and numerous blotches and a spotless ventral surface (Ref. 12951).

Biologie     Verklarende woordenlijst (b.v. epibenthic)

Found on rocky reefs (Ref. 12951); near shore, down to 300 m on sandy mud bottoms (Ref. 11230). Feeds mainly on bony fishes such as mackerel, sardines, filefishes, moray eels, dragonets, flatfishes and cowfishes (Ref. 12951) but also preys on elasmobranches and squid (Ref. 12951). Oviparous (Ref. 50449). Thrives and breeds in public aquariums (Ref. 12951).

Life cycle and mating behavior Geslachtsrijpheid | Voortplanting | Kuitschieten | Eieren | Fecundity | Larven

Oviparous (Ref. 559), two tendril eggcases are deposited at one time (Ref. 12951). Embryos feed solely on yolk (Ref. 50449). Eggs hatch after about 1 year and size upon hatching is 16-22 cm (Ref. 12951).

Voornaamste referentie Upload your references | Referenties | Coördinator : Compagno, Leonard J.V. | Medewerkers

Nakaya, K., S. Inque and H.-C. Ho, 2013. A review of the genus Cephaloscyllium (Chondrichthyes: Carcharhiniformes: Scyliorhinidae) from Taiwanese waters. Zootaxa 3752(1):101-129. (Ref. 94801)

Status op de Rode Lijst van het IUCN (Ref. 123251)

  Onvoldoende gegevens (DD) ; Date assessed: 01 January 2007

CITES (Ref. 123416)

Not Evaluated

CMS (Ref. 116361)

Not Evaluated

Gevaarlijk voor mensen

  Harmless (Ref. 12951)





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Estimates based on models

Preferred temperature (Ref. 115969): 11.5 - 26.5, mean 19.2 °C (based on 435 cells).
Phylogenetic diversity index (Ref. 82805):  PD50 = 0.5000   [Uniqueness, from 0.5 = low to 2.0 = high].
Bayesian length-weight: a=0.00331 (0.00170 - 0.00646), b=3.15 (2.97 - 3.33), in cm total length, based on LWR estimates for this (Sub)family-body shape (Ref. 93245).
Trophic level (Ref. 69278):  4.5   ±0.76 se; based on food items.
Weerstandsvermogen (Ref. 120179):  laag, minimale populatieverdubbelingstijd 4,5-14 jaar (Fec assumed to be <100).
Kwetsbaarheid (Ref. 59153):  High to very high vulnerability (68 of 100) .