Environment: milieu / climate zone / depth range / distribution range
بوم شناسي
دريايي; آب شيرين; لب شور نزديك كف زي; رود کوچ (Ref. 51243). Temperate; 35°N - 2°S, 97°W - 132°E (Ref. 54266)
Northwest Pacific: China and Japan (Sagami Sea) (Ref. 4537). Reported from Korea (Ref. 12218). Pearl River and Chinese sea (Ref. 42845).
Size / Weight / سن
Maturity: Lm ?  range ? - ? cm
Max length : 346 cm TL جنس نر / بدون خواص جنسي; (Ref. 52325); common length : 39.0 cm TL جنس نر / بدون خواص جنسي; (Ref. 35840); بيشينه وزن گزارش شده: 600.0 kg (Ref. 47439); بيشينه سن گزارش شده: 33 سال ها (Ref. 52325)
خارهاي باله پشتي (کل) : 0; شعاع نرم باله پشتي (کل) : 50 - 57; خارهاي باله مخرجي: 0; شعاع نرم باله مخرجي: 32 - 40. Body shields in 5 rows; dorsal shields 10 to 17.
Fry can be found in slow moving waters, adults in deep waters (Ref. 12218). Used in Chinese medicine (Ref. 12166). Reported to reach a length of more than 3 meters (Ref. 109736).
Birstein, V.J., 1993. Sturgeons and paddlefishes: threatened fishes in need of conservation. Conserv. Biol. 7:773-787. (Ref. 6866)
وضعيت در فهرست قرمز IUCN (Ref. 130435)
خطر برای انسان ها
Harmless
استفاده انسانی
ماهي گيري – شيلات: تجاري
ابزارها
گزارش های ويژه
بارگيری XML
منابع اينترنتي
Estimates based on models
Preferred temperature (Ref.
123201): 15.6 - 26.5, mean 23.5 °C (based on 180 cells).
Phylogenetic diversity index (Ref.
82804): PD
50 = 0.5000 [Uniqueness, from 0.5 = low to 2.0 = high].
Bayesian length-weight: a=0.00324 (0.00142 - 0.00736), b=3.17 (2.99 - 3.35), in cm total length, based on LWR estimates for this Genus-body shape (Ref.
93245).
Trophic level (Ref.
69278): 3.5 ±0.37 se; based on food items.
Generation time: 12.1 ( na - na) years. Estimated as median ln(3)/K based on 1
growth studies.
جهندگی (Ref.
120179): خیلی آهسته, كمينه زمان لازم براي دو برابر شدن جمعيت بيش از 14 سال (Tm=9-26; Tmax=33).
Fishing Vulnerability (Ref.
59153): Very high vulnerability (79 of 100).