Environment: milieu / climate zone / depth range / distribution range
Ökologie
seewasser; süßwasser; brackwasser demersal; katadrom (Ref. 35893), usually ? - 1 m (Ref. 35893). Temperate; 5°C - 33°C (Ref. 56353); 41°N - 31°N
Asia: Japan.
Size / Gewicht / Alter
Maturity: Lm ?  range ? - ? cm
Max length : 30.0 cm SL Männchen/unbestimmt; (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).
Life cycle and mating behavior
Maturities | Fortpflanzung | Spawnings | Egg(s) | Fecundities | 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)
IUCN Rote Liste Status (Ref. 130435)
Bedrohung für Menschen
Harmless
Nutzung durch Menschen
Fischereien: kommerziell
Tools
Zusatzinformationen
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Internet Quellen
Estimates based on models
Phylogenetic diversity index (Ref.
82804): PD
50 = 0.5000 [Uniqueness, from 0.5 = low to 2.0 = high].
Bayesian length-weight: a=0.00676 (0.00300 - 0.01523), b=3.17 (2.98 - 3.36), in cm total length, based on LWR estimates for this (Sub)family-body shape (Ref.
93245).
Trophic level (Ref.
69278): 4.2 ±0.73 se; based on food items.
Widerstandsfähigkeit (Ref.
120179): hoch, Verdopplung der Population dauert weniger als 15 Monate. (Fec = 15,000).
Fishing Vulnerability (Ref.
59153): Low to moderate vulnerability (27 of 100).