Japan country information

Common names: Shirozame
Occurrence: native
Salinity: marine
Abundance: | Ref:
Importance: commercial | Ref: Compagno, L.J.V., 1984
Aquaculture: | Ref:
Regulations: | Ref:
Uses: no uses
Comments: Occurs from Hokkaido southward (Ref. 559, 11230). Also Ref. 13563.
National Checklist:
Country Information: https://www.cia.gov/library/publications/resources/the-world-factbook/geos/ja.html
National Fisheries Authority: http://www.maff.go.jp/eindex.html
Occurrences: Occurrences Point map
Main Ref: Compagno, L.J.V., 1984
National Database:

Common names from other countries

Émissole côtière, Musola gris, 灰星鲨, ... more

Classification / Names Κοινά ονόματα | Συνώνυμα | Catalog of Fishes(Γένος, Είδη) | ITIS | CoL | WoRMS | Cloffa

Ελασμοβράγχιοι (καρχαρίες και σαλάχια) (sharks and rays) > Carcharhiniformes (Ground sharks) > Triakidae (Houndsharks) > Triakinae
Etymology: Mustelus: Latin for weasel, an ancient name for sharks, possibly referring to the pointed snouts, swift movements and/or rapacious feeding behavior of smaller predatory sharks [strictly not tautonymous with Squalus mustelus Linnaeus 1758 since type was designated by the ICZN]. (See ETYFish); griseus: Medieval Latin for gray, referring to gray or gray-brown color. (See ETYFish).

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

Θαλασσινό(ά) βενθικό(ς); εύρος βάθους 5 - 300 m (Ref. 104830), usually 51 - ? m (Ref. 104830). Tropical; 41°N - 11°N, 105°E - 142°E

Κατανομή Χώρες | Περιοχές FAO | Οικοσυστήματα | Παρουσίες | Point map | Εισαγωγές | Faunafri

Northwest Pacific: Japan, Korea, China, Taiwan, and Viet Nam (Ref. 244). Possibly occurring in the Philippines (Ref. 13563).

Length at first maturity / Μέγεθος / Βάρος / Age

Maturity: L_m 72.0, range 70 - 74 cm
Max length : 87.0 cm TL αρσενικό/απροσδιόριστο; (Ref. 244); 101.0 cm TL (female); μεγ. αναφερόμενη ηλικία: 9 έτη (Ref. 6983)

An inshore bottom-dwelling shark found down to at least 51 m (Ref. 244); also dwells in semi-enclosed sea areas with sand bottom (Ref. 11230). Probably feeds on benthic invertebrates, especially crustaceans (Ref. 13563). Viviparous, with a yolk-sac placenta (Ref. 244).

Life cycle and mating behavior Maturities | Αναπαραγωγή | Spawnings | Egg(s) | Fecundities | Προνύμφες

Viviparous with a yolk-sac placenta. Produces 5 to 16 young per litter, with larger adults having larger litters of young. Gestation period is 10 months, birth occurring in April and May. Size at birth about 28 cm (Ref. 244).

Main reference Upload your references | Αναφορές | Συντονιστής : Compagno, Leonard J.V. | Συνεργάτες

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 2 - Carcharhiniformes. FAO Fish. Synop. 125(4/2):251-655. Rome: FAO. (Ref. 244)

IUCN Red List Status (Ref. 130435)

Endangered (EN) (A2d); Date assessed: 29 August 2019

CITES (Ref. 128078)

Not Evaluated

CMS (Ref. 116361)

Not Evaluated

Threat to humans

Harmless (Ref. 13563)

Human uses

αλιεία: Εμπορικό(ά)

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Διαδικτυακές πηγές

Estimates based on models

Preferred temperature (Ref. 115969): 11.1 - 23.2, mean 18.5 (based on 212 cells).

Phylogenetic diversity index (Ref. 82804): PD₅₀ = 0.5000 [Uniqueness, from 0.5 = low to 2.0 = high].

Bayesian length-weight: a=0.00224 (0.00105 - 0.00478), b=3.14 (2.97 - 3.31), in cm Total Length, based on LWR estimates for this Genus-body shape (Ref. 93245).

Τροφικό Επίπεδο (Ref. 69278): 3.5 ±0.4 se; based on diet studies.

Ελαστικότητα (Ref. 120179): Πολύ χαμηλό, ελάχιστος χρόνος για διπλασιασμό πληθυσμού > 14 έτη (tm=5.3-6.5; tmax=9; Fec=5).

Fishing Vulnerability (Ref. 59153): High vulnerability (59 of 100).

Price category (Ref. 80766): Medium.

Mustelus griseus Pietschmann, 1908