Environment: milieu / Klimaatzone / Diepte / distribution range
Ecologie
marien; zoet water; brak water demersaal; katadroom (Ref. 35893), usually ? - 1 m (Ref. 35893). Temperate; 5°C - 33°C (Ref. 56353); 41°N - 31°N
Asia: Japan.
Grootte / Gewicht / Leeftijd
Maturiteit: Lm ? range ? - ? cm
Max length : 30.0 cm SL mannelijk / geslacht onbekend; (Ref. 56353)
Adults are found in the middle reaches of rivers during the summer; migrates downstream in autumn (Ref. 559). River bed consists of cobbles, boulders and gravel in riffles and sand and gravel in pools (Ref. 56353). Feed on fishes (Ref. 559). Juveniles migrate from the spawning ground in the sea to the middle reaches of rivers to grow (Ref. 56353).
Levenscyclus en paargedrag
Maturiteit | Voortplanting | Paaien | Eieren | Fecunditeit | Larven
From an aquarium observation, parental care is provided by the male which guarded and cared for the eggs until they hatch (Ref. 56353).
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)
Status op de Rode Lijst van het IUCN (Ref. 130435: Version 2025-1)
Gevaar voor de mens
Harmless
Gebruik door de mens
Visserij: commercieel
Tools
Speciale rapporten
Download XML
Internetbronnen
Estimates based on models
Fylogenetische diversiteitsindex (Ref.
82804): PD
50 = 0.5000 [Uniqueness, from 0.5 = low to 2.0 = high].
Bayesian length-weight: a=0.00589 (0.00281 - 0.01234), b=3.15 (2.97 - 3.33), in cm total length, based on LWR estimates for this (Sub)family-body shape (Ref.
93245).
Trofisch niveau (Ref.
69278): 4.2 ±0.73 se; based on food items.
Weerstandsvermogen (Ref.
120179): Hoog, minimale populatieverdubbelingstijd minder dan 15 maanden (Fec = 15,000).
Fishing Vulnerability (Ref.
59153): Low to moderate vulnerability (27 of 100).
🛈
