Environment: milieu / climate zone / kisaran kedalaman / distribution range
Ekologi
laut; air tawar; payau dasar (demersal); katadromus (ruaya dari air tawar ke laut) (Ref. 35893), usually ? - 1 m (Ref. 35893). Temperate; 5°C - 33°C (Ref. 56353); 41°N - 31°N
Asia: Japan.
Size / Weight / umur
Kematangan: Lm ? range ? - ? cm
Max length : 30.0 cm SL jantan/; (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
Kematangan | Reproduksi, perkembang biakan | Pemijahan | telur-telur | Fecundity | Larva
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 IUCN Red List (Ref. 130435: Version 2025-1)
ancaman kepada manusia
Harmless
penggunaan manusia
Perikanan: komersial
Alat, peralatan
laporan khas
muat turun XML
Sumber internet
Estimates based on models
Phylogenetic diversity index (Acuan
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).
Trophic level (Acuan
69278): 4.2 ±0.73 se; based on food items.
Daya lenting (Acuan
120179): Tinggi, Waktu penggandaan populasi minimum kurang dari 15 bulan (Fec = 15,000).
Fishing Vulnerability (Ref.
59153): Low to moderate vulnerability (27 of 100).
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