Japan country information

Common names: Kourai-nigoi, Nigoi, コウライニゴイ
Occurrence: native
Salinity: freshwater
Abundance: | Ref:
Importance: | Ref:
Aquaculture: | Ref:
Regulations: | Ref:
Uses: no uses
Comments: Known from Honshu northward from Ishikawa, Shiga and Mie Prefectures, discontinuously distributed in Yamaguchi Prefecture and Kyushu westward from River Nishiki (Ref. 41299). Recorded from Lake Biwa (Ref. 78994). Spawns mainly in April in Chikugo River (Ref. 46489). Status of threat in the 2005 Red Data Book of Shiga Prefecture : data deficient so caution needed (Ref. 79825). Also Ref. 1441, 43281.
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

唇(鱼骨), Amur barbel, Nigoi, ... more

Classification / Names Nomi Comuni | Sinonimi | Catalog of Fishes(Genere, Specie) | ITIS | CoL | WoRMS | Cloffa

> Cypriniformes (Carps) > Gobionidae (Gudgeons)
Etymology: Hemibarbus: Greek, hemi = the half + Latin, barbus = barbel (Ref. 45335).
More on author: Pallas.

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

; acqua dolce benthopelagico; potamodromo (Ref. 35461); distribuzione batimetrica 5 - 20 m (Ref. 6898). Temperate; 54°N - 19°N, 105°E - 143°E

Distribuzione Stati | Aree FAO | Ecosystems | Presenze | Point map | Introduzioni | Faunafri

Asia: throughout the Amur basin (Ref. 1441); eastern Asia from the Amur basin to northern Vietnam, Japan and islands of Hainan and Taiwan (Ref. 26334). Recorded from Mekong basin in Laos which apparently the result of introduction, either in Laos, or more likely upriver in Mekong basin in China (Ref. 37786).

Length at first maturity / Size / Peso / Age

Maturity: L_m 30.5, range 29 - 32 cm
Max length : 67.0 cm TL maschio/sesso non determinato; (Ref. 126870); common length : 33.0 cm TL maschio/sesso non determinato; (Ref. 1441); common length :40.6 cm TL (female); peso massimo pubblicato: 3.0 kg (Ref. 56557); Età massima riportata: 15 anni (Ref. 56557)

Short description Chiavi di identificazione | Morfologia | Morfometria

Vertebre: 40 - 42. Body spots absent in adults. Elongated body with slightly convex dorsal profile. Head length longer than body depth. Snout length much longer than postorbital head length. Lips well developed, lateral lobes of lower lip broad and thick, with folds, the median process small. Barbel length slightly thick, shorter or equal to eye diameter. Dorsal spine strong, 2/3 of HL. Origin of dorsal fin nearer the tip of snout than the caudal base. Gill rakers more than 15 (Ref. 38453). Anal fin with 6 1/2 branched rays; last simple dorsal rays ossified, spine-like (Ref. 43281).

Omnivorous, feeding mainly on benthic invertebrates (Ref. 41299). Females are larger than males (Ref. 1441).

Life cycle and mating behavior Maturities | Riproduzione | Spawnings | Egg(s) | Fecundities | Larve

Main reference Upload your references | Bibliografia | Coordinatore | Collaboratori

Nakabo, T., 2002. Fishes of Japan with pictorial keys to the species, English edition I. Tokai University Press, Japan, pp v-866. (Ref. 41299)

IUCN Red List Status (Ref. 130435)

Least Concern (LC) ; Date assessed: 06 April 2020

CITES (Ref. 128078)

Not Evaluated

CMS (Ref. 116361)

Not Evaluated

Threat to humans

Harmless

Human uses

Pesca: commerciale

FAO(Publication : search) | FishSource |

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Fonti Internet

Estimates based on models

Phylogenetic diversity index (Ref. 82804): PD₅₀ = 0.5002 [Uniqueness, from 0.5 = low to 2.0 = high].

Bayesian length-weight: a=0.00708 (0.00586 - 0.00855), b=3.10 (3.05 - 3.15), in cm Total Length, based on LWR estimates for this species (Ref. 93245).

Trophic level (Ref. 69278): 3.5 ±0.5 se; based on size and trophs of closest relatives

Resilienza (Ref. 120179): Medio, tempo minimo di raddoppiamento della popolazione 1.4 - 4.4 anni (tm=3-4; k=0.16-0.19).

Fishing Vulnerability (Ref. 59153): Moderate to high vulnerability (55 of 100).

Price category (Ref. 80766): Unknown.

Hemibarbus labeo (Pallas, 1776)