Environment: milieu / climate zone / depth range / distribution range
Ekologi
laut; air tawar; payau dasar (demersal); anadromus (ruaya dari laut ke air tawar) (Ref. 51243). Temperate; 56°N - 33°N, 125°E - 145°E (Ref. 54262)
Northwest Pacific: Bering Sea, Tumnin (Datta) river, to northern Japan and Korea. This species was formerly regarded to be a population of Acipenser medirostris (Ref. 6866).
Size / Weight / umur
Maturity: Lm ?  range ? - ? cm
Max length : 150 cm TL jantan/; (Ref. 12218)
Duri punggung (Keseluruhan (total)) : 0; duri punggung lunak (Keseluruhan (total)) : 33 - 40; Duri dubur: 0; Sirip dubur lunak: 22 - 30. Body shields in 5 rows; dorsal shields 7 to 11, lateral 22 to 36 and ventral 10.
Commercially cultured in Japan (Ref. 6866). From April to May adults feed in fresh water and return to the ocean during the fall (Ref. 12218). Generation time: 15 years (Ref. 116373).
Life cycle and mating behavior
Kematangan | Reproduksi, perkembang biakan | Pemijahan | telur-telur | Fecundity | Larva
Eggs are laid from April to August under the substrate in sandy areas (Ref. 12218).
Birstein, V.J., 1993. Sturgeons and paddlefishes: threatened fishes in need of conservation. Conserv. Biol. 7:773-787. (Ref. 6866)
Status IUCN Red List (Ref. 130435: Version 2024-1)
ancaman kepada manusia
Harmless
penggunaan manusia
Perikanan: nilai komersial kecil; Budidaya air: komersial
Alat, peralatan
laporan khas
muat turun XML
Sumber internet
Estimates based on models
Preferred temperature (Ref.
123201): 13.6 - 20.1, mean 18.3 °C (based on 34 cells).
Phylogenetic diversity index (Ref.
82804): PD
50 = 0.5000 [Uniqueness, from 0.5 = low to 2.0 = high].
Bayesian length-weight: a=0.00295 (0.00131 - 0.00665), b=3.18 (3.00 - 3.36), in cm total length, based on LWR estimates for this Genus-body shape (Ref.
93245).
Trophic level (Ref.
69278): 3.3 ±0.3 se; based on size and trophs of closest relatives
Daya lenting (Ref.
120179): sangat rendah, Waktu penggandaan populasi minimum lebih dari 14 tahun (Preliminary K or Fecundity.).
Fishing Vulnerability (Ref.
59153): Very high vulnerability (90 of 100).