Chinese Taipei (Taiwan) country information

Common names: [No common name]
Occurrence: native
Salinity: marine
Abundance: | Ref:
Importance: | Ref:
Aquaculture: | Ref:
Regulations: | Ref:
Uses: no uses
Comments: Although reported in various references (Ref. 247, 559) Shen (1993, Ref. 5193) states that it does not occur in Taiwan.
National Checklist:
Country Information: https://www.cia.gov/library/publications/resources/the-world-factbook/geos/tw.html
National Fisheries Authority:
Occurrences: Occurrences Point map
Main Ref: Compagno, L.J.V., 1984
National Database: The Fish Database of Taiwan

Common names from other countries

Requin scie moustache, Tiburón sierra japonés, قرش مِنشار ياباني, ... more

Classification / Names आम नाम | उपशब्द | Catalog of Fishes(वर्ग, प्रजाति) | ITIS | CoL | WoRMS | Cloffa

इलाज़मौबरांकी (शारक और रेज़) (sharks and rays) > Pristiophoriformes (Saw sharks) > Pristiophoridae (Saw sharks)
Etymology: Pristiophorus: pristio-, presumably derived from prio (Gr.), to saw, but treated here as a noun (a saw); phorus, from phoreus (Gr.), bearer or carrier, referring to saw-like snout (note also that pristis is Greek for sawfish). (See ETYFish); japonicus: -icus (L.), belonging to: Japan, where type locality (not specified) is situated. (See ETYFish).
More on author: Günther.

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

समुद्री ड़िमरसल; गहराई सीमा 0 - 500 m (Ref. 54710). Deep-water; 48°N - 22°N, 118°E - 145°E (Ref. 54710)

वितरण देश | ऐफ ऐ ओ क्षेत्र | Ecosystems | संयोग | Point map | भूमिका | Faunafri

Northwest Pacific: Japan, Korea, northern China. Does not occur in the Western Central Pacific (Ref. 31368).

आकार / वज़न / Age

Maturity: L_m ? range ? - ? cm
Max length : 136.0 cm TL (female)

Short description पहचान कुंजी | आकृति विज्ञान | मौरफोमैटरिक्स

Pristiophorus japonicus has a long, narrow, and narrowly tapering rostrum (rostrum length is 26-29% of TL), distance from rostral tip to barbels about equal or slightly greater than distance from barbels to mouth (1:1.1-1.2); distance from rostral barbels to nostrils about equal to distance from nostrils to 1st gill slits. About 15-26 large rostral teeth on each side of the rostrum in front of the barbels, 9-17+ behind them; distance from mouth to nostrils 1.1-1.2 times internarial space. Tooth rows 34-58 in upper jaw. Dorsal and pectoral fins covered with denticles in large specimens. Lateral trunk denticles largely unicuspidate. First dorsal fin origin behind free rear tips of pectorals by eye length or more (Ref. 247). Caudal fin almost straight, with slender upper and lower lobes; pectoral well developed but are not ray-like (Ref. 6871).

Lives on continental shelves and upper slopes on or near the bottom. Also found in coastal waters on sand or mud bottoms. Feeds on small bottom organisms using its barbels to poke the bottom with its snout. Ovoviviparous, with 12 young in a litter.

Life cycle and mating behavior Maturities | पुनरुत्पत्ति | Spawnings | Egg(s) | Fecundities | लार्वा

Ovoviviparous, embryos feed solely on yolk (Ref. 50449).

Main reference Upload your references | संदर्भ | संयोजक : Compagno, Leonard J.V. | सहयोगीयो

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)

IUCN Red List Status (Ref. 130435)

Least Concern (LC) ; Date assessed: 27 August 2019

CITES (Ref. 128078)

Not Evaluated

CMS (Ref. 116361)

Not Evaluated

Threat to humans

Harmless

Human uses

मात्स्यिकी: व्यापारिक

FAO(मात्स्यिकी: species profile; publication : search) | FishSource |

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Summary page | Point data | आम नाम | Photos

इंटरनेट स्रोत

Estimates based on models

Preferred temperature (Ref. 115969): 7.7 - 21.8, mean 17.4 (based on 199 cells).

Phylogenetic diversity index (Ref. 82804): PD₅₀ = 0.5156 [Uniqueness, from 0.5 = low to 2.0 = high].

Bayesian length-weight: a=0.00389 (0.00180 - 0.00842), b=3.12 (2.94 - 3.30), in cm Total Length, based on all LWR estimates for this body shape (Ref. 93245).

Trophic level (Ref. 69278): 3.8 ±0.58 se; based on food items.

लौटाव (Ref. 120179): निम्न, न्यूनतम जनसंख्या दुगनी होने का समय 4.5 - 14 वर्ष। (Fec=12).

Fishing Vulnerability (Ref. 59153): Very high vulnerability (82 of 100).

Price category (Ref. 80766): High.

Pristiophorus japonicus Günther, 1870