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Pristiophorus japonicus Günther, 1870
Japanese sawshark
مشاهدات خود را اضافه کنيد در Fish Watcher
| Native range | All suitable habitat | Point map | Year 2050 |
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| This map was computer-generated and has not yet been reviewed. |
| Pristiophorus japonicus AquaMaps Data sources: GBIF OBIS |
را بارگذاری کني تصاوير و فيلم ها
Pictures | Stamps, coins, misc. | تصوير گوگل
Pristiophorus japonicus
Picture by FAO
Pictures | Stamps, coins, misc. | تصوير گوگل
Picture by FAO
رده بندی / Names اسامي عام | مترادف | Catalog of Fishes(جنس, گونه ها) | ITIS | CoL | WoRMS | Cloffa
(كوسه ها و سپرماهيان) (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.
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 بوم شناسي
دريايي نزديك كف زي; تغييرات عمق 0 - 500 m (Ref. 54710). Deep-water; 48°N - 22°N, 118°E - 145°E (Ref. 54710)
پراكنش كشورها | مناطق سازمان خوار و بار جهاني (FAO) | Ecosystems | ظهور | Point map | معرفي | Faunafri
Northwest Pacific: Japan, Korea, northern China. Does not occur in the Western Central Pacific (Ref. 31368).
Size / Weight / سن
Maturity: Lm ? range ? - ? cm
Max length : 136.0 cm TL (female)
Max length : 136.0 cm TL (female)
توصيف مختصر كليدهاي شناسايي | ريخت شناسي | ريخت ستجي بوسيله انداره گيري
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 بلوغ | تولید مثل | تخم ریزی | تخم ها | Fecundity | توزاد ( لارو)
Ovoviviparous, embryos feed solely on yolk (Ref. 50449).
مآخذ اصلی
Upload your references | مراجع | هماهنگ كننده : Compagno, Leonard J.V. | همكاران
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)
وضعيت در فهرست قرمز IUCN (Ref. 130435: Version 2024-2)
حداقل نگرانی (LC) ; Date assessed: 27 August 2019
CITES
Not Evaluated
خطر برای انسان ها
Harmless
استفاده انسانی
ماهي گيري – شيلات: تجاري
FAO - ماهي گيري – شيلات: نمايه گونه; Publication: search | FishSource |
اطلاعات بيشتر
Population dynamics
Growth parameters
Max. ages / sizes
Length-weight rel.
Length-length rel.
نوسانات طولی
Mass conversion
بازسازی
فراواني
Growth parameters
Max. ages / sizes
Length-weight rel.
Length-length rel.
نوسانات طولی
Mass conversion
بازسازی
فراواني
Anatomy
منطقه آبششي
Brain
Otolith
منطقه آبششي
Brain
Otolith
Physiology
Body composition
Nutrients
Oxygen consumption
Swimming type
Swimming speed
Visual pigments
Fish sound
Diseases & Parasites
Toxicity (LC50s)
Body composition
Nutrients
Oxygen consumption
Swimming type
Swimming speed
Visual pigments
Fish sound
Diseases & Parasites
Toxicity (LC50s)
Genetics
ژنتيك
Heterozygosity
وارث
ژنتيك
Heterozygosity
وارث
ابزارها
E-book | راهنماي صحرايي | امكان نرم افزاري بسامد طولي | ابزار تاريخ زيستي | نقشه نقطه ای | Classification Tree
| Catch-MSY |
گزارش های ويژه
راجع به نگهداری آکواريم ملاحظه کنيد | برگه اطلاعات و مشخصات گونه ها را ملاحظه کنيد | برگه اطلاعات و مشخصات آبزی پروری را ببينيد
بارگيری XML
صفحه خلاصه | Point data | اسامي عام | تصاوير
منابع اينترنتي
AFORO (otoliths) | Aquatic Commons | BHL | Cloffa | BOLDSystems | Websites from users | فيش واچر را ببينيد | CISTI | Catalog of Fishes: جنس, گونه ها | DiscoverLife | ECOTOX | FAO - ماهي گيري – شيلات: نمايه گونه; Publication: search | Faunafri | Fishipedia | Fishtrace | GenBank: ژنوم, نوکلئوتيد | GloBI | Google Books | Google Scholar | Google | IGFA World Record | MitoFish | پايگاه هاي داده ها | Otolith Atlas of Taiwan Fishes | PubMed | Reef Life Survey | Socotra Atlas | Tree of Life | Wikipedia: برو, جستجو | World Records Freshwater Fishing | Zoobank | Zoological Record
Estimates based on models
Preferred temperature (Ref. 123201): 7.7 - 21.8, mean 17.4 °C (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.
جهندگی (Ref. 120179): پايين ، كم, كمينه زمان لازم براي دو برابر شدن جمعيت 5/4 – 14 سال (Fec=12).
Fishing Vulnerability (Ref. 59153): Very high vulnerability (82 of 100).