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| Native range | All suitable habitat | Point map | Year 2050 |
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| This map was computer-generated and has not yet been reviewed. |
| Anguilla japonica AquaMaps Data sources: GBIF OBIS |
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Anguilla japonica
Picture by Shao, K.T.
Pictures | Stamps, coins, misc. | Google Bild
Picture by Shao, K.T.
Japan country information
Common names:
Kabayaki, Nihon-unagi, Unagi
Occurrence: native
Salinity: freshwater
Abundance: | Ref:
Importance: commercial | Ref: Masuda, H., K. Amaoka, C. Araga, T. Uyeno and T. Yoshino, 1984
Aquaculture: commercial | Ref: Masuda, H., K. Amaoka, C. Araga, T. Uyeno and T. Yoshino, 1984
Regulations: | Ref:
Uses: no uses
Comments: Recorded from the Chikuma River, Hokkaido (Ref. 37812, 11230); Kawahara-oike Lake, Nagasaki (Ref. 32231); in Futatsukawa Creek, Fukuoka Prefecture (Ref. 37350), Lake Hamana, Aichi and Minato River, Chiba (Ref. 48776). Also. Ref. 9988, 57032. Status of threat: Endangered (Ref. 94887).
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: Masuda, H., K. Amaoka, C. Araga, T. Uyeno and T. Yoshino, 1984
National Database:
Occurrence: native
Salinity: freshwater
Abundance: | Ref:
Importance: commercial | Ref: Masuda, H., K. Amaoka, C. Araga, T. Uyeno and T. Yoshino, 1984
Aquaculture: commercial | Ref: Masuda, H., K. Amaoka, C. Araga, T. Uyeno and T. Yoshino, 1984
Regulations: | Ref:
Uses: no uses
Comments: Recorded from the Chikuma River, Hokkaido (Ref. 37812, 11230); Kawahara-oike Lake, Nagasaki (Ref. 32231); in Futatsukawa Creek, Fukuoka Prefecture (Ref. 37350), Lake Hamana, Aichi and Minato River, Chiba (Ref. 48776). Also. Ref. 9988, 57032. Status of threat: Endangered (Ref. 94887).
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: Masuda, H., K. Amaoka, C. Araga, T. Uyeno and T. Yoshino, 1984
National Database:
Common names from other countries
Klassifizierung / Names Namen | Synonyme | Catalog of Fishes(Gattung, Arten) | ITIS | CoL | WoRMS | Cloffa
> Anguilliformes (Eels and morays) > Anguillidae (Freshwater eels)
Etymology: Anguilla: Latin, anguilla, .-ae = eel (Ref. 45335).
More on authors: Temminck & Schlegel.
Etymology: Anguilla: Latin, anguilla, .-ae = eel (Ref. 45335).
More on authors: Temminck & Schlegel.
Environment: milieu / climate zone / depth range / distribution range Ökologie
seewasser; süßwasser; brackwasser demersal; katadrom (Ref. 51243); tiefenbereich 1 - 400 m (Ref. 6898). Subtropical; 4°C - 27°C (Ref. 12468); 46°N - 15°N, 105°E - 170°E
Verbreitung Länder | FAO Gebiete | Ecosystems | Vorkommen | Point map | Einführungen | Faunafri
Asia: Japan to the East China Sea, Taiwan, Korea, China and northern Philippines. Spawning grounds of this species are presumed to be in the western Mariana Islands, at a salinity front near 15°N and 140°E (Ref. 54488). Most expensive food fish in Japan. Introduced elsewhere.
Size / Gewicht / Alter
Maturity: Lm ? range ? - ? cm
Max length : 150 cm TL Männchen/unbestimmt; (Ref. 9828); common length : 40.0 cm SL Männchen/unbestimmt; (Ref. 35840); max. veröff. Gewicht: 1.9 kg (Ref. 82795)
Max length : 150 cm TL Männchen/unbestimmt; (Ref. 9828); common length : 40.0 cm SL Männchen/unbestimmt; (Ref. 35840); max. veröff. Gewicht: 1.9 kg (Ref. 82795)
Kurzbeschreibung Bestimmungsschlüssel | Morphologie | Morphometrie
Wirbelzahl: 114 - 118. Plain-colored.
Spawning occurs in the sea; small eels ascend the rivers in schools; develop and grow in freshwater. The species may crawl over land at night from one place to another (Ref. 5258, 11230). Adults feed on crustaceans, insects and fish (Ref. 5258). Maximum weight given (1889 g) has a maximum length of 100.8 cm TL in Ref. 82795. Utilized fresh, smoked, canned and frozen; eaten steamed, broiled and baked (Ref. 9988). Used in Chinese medicine (Ref. 12166).
Life cycle and mating behavior Geschlechtsreife | Fortpflanzung | Ablaichen | Eier | Fecundity | Larven
Assuming reproductive mode to be the same as that of Anguilla anguilla.
Hauptreferenz
Upload your references | Referenzen | Koordinator | Partner
Masuda, H., K. Amaoka, C. Araga, T. Uyeno and T. Yoshino, 1984. The fishes of the Japanese Archipelago. Vol. 1. Tokai University Press, Tokyo, Japan. 437 p. (text). (Ref. 559)
IUCN Rote Liste Status (Ref. 130435: Version 2024-2)
stark gefährdet (EN) (A2bcd); Date assessed: 06 November 2018
Bedrohung für Menschen
Harmless
Nutzung durch Menschen
Fischereien: hoch kommerziell; Aquakultur: kommerziell
FAO(Aquaculture systems: production, Artbeschreibung; Fischereien: production, Artbeschreibung; publication : search) | FishSource | Sea Around Us
Mehr Information
Population dynamics
Growth parameters
Max. ages / sizes
Length-weight rel.
Length-length rel.
Längenhäufigkeiten
Mass conversion
Rekrutierung
Dichte
Growth parameters
Max. ages / sizes
Length-weight rel.
Length-length rel.
Längenhäufigkeiten
Mass conversion
Rekrutierung
Dichte
Life cycle
Fortpflanzung
Geschlechtsreife
Fecundity
Ablaichen
Spawning aggregations
Eier
Eientwicklung
Larven
Larven Pop.Dyn.
Fortpflanzung
Geschlechtsreife
Fecundity
Ablaichen
Spawning aggregations
Eier
Eientwicklung
Larven
Larven Pop.Dyn.
Anatomy
Kiemenoberfläche
Brain
Otolith
Kiemenoberfläche
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)
Human related
Aquaculture systems
Aquakultur Profile
Zuchtlinien
Ciguatera cases
Stamps, coins, misc.
Aquaculture systems
Aquakultur Profile
Zuchtlinien
Ciguatera cases
Stamps, coins, misc.
Tools
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Zusatzinformationen
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Zusammenfassung | Point data | Namen | Photos
Internet Quellen
Alien/Invasive Species database | Aquatic Commons | BHL | Cloffa | BOLDSystems | Websites from users | FishWatcher Einträge suchen | CISTI | Catalog of Fishes(Gattung, Arten) | DiscoverLife | ECOTOX | Faunafri | Fishtrace | GenBank(Genom, nucleotide) | GloBI | GOBASE | | Google Books | Google Scholar | Google | IGFA World Record | MitoFish | Nationale Datenbanken | Otolith Atlas of Taiwan Fishes | PubMed | Reef Life Survey | Scirus | SeaLifeBase | Tree of Life | Wikipedia(Gehe zu, Suchen) | World Records Freshwater Fishing | Zoobank | Zoological Record
Estimates based on models
Preferred temperature (Ref. 115969): 2.5 - 23.3, mean 17 (based on 432 cells).
Phylogenetic diversity index (Ref. 82804): PD50 = 0.5000 [Uniqueness, from 0.5 = low to 2.0 = high].
Bayesian length-weight: a=0.00062 (0.00039 - 0.00099), b=3.18 (3.05 - 3.31), in cm Total Length, based on LWR estimates for this species & Genus-body shape (Ref. 93245).
Trophic level (Ref. 69278): 3.6 ±0.51 se; based on food items.
Widerstandsfähigkeit (Ref. 120179): niedrig, Verdopplung der Population dauert 4,5 - 14 Jahre. (K=0.07).
Fishing Vulnerability (Ref. 59153): High to very high vulnerability (71 of 100).