分类 / Names
俗名 | 同种异名 | Catalog of Fishes(属, 种) | ITIS | CoL | WoRMS | Cloffa
Chondrostei >
Acipenseriformes (Sturgeons and paddlefishes) >
Acipenseridae (Sturgeons) > Scaphirhynchinae
Etymology: Scaphirhynchus: Greek, skaphe, -eos = boat + Greek, rhyngchos = snout (Ref. 45335); platorynchus: From the words platy, meaning broad and rynchus, meaning snout (Ref. 10294).
More on author: Rafinesque.
Environment: milieu / climate zone / depth range / distribution range
生态学
; 淡水 居于水底的; 河川洄游 (Ref. 51243). 溫帶; 10°C - 20°C (Ref. 2060); 50°N - 30°N
North America: USA in Mississippi River basin from west Pennsylvania to Montana and south to Louisiana; Mobile Bay drainage, Alabama and Mississippi; upper Rio Grande, New Mexico.
北美洲: 在美國密西西比河流域從西方的賓州到蒙大納而且南至路易斯安那; 摩比灣流域，阿拉巴馬州與密西西比; 大河上游，新墨西哥州。 被認為是瀕臨絕種的.(參考文獻 6866) 國際間的買賣限制。 ( 引用2, 自從 1.4.98 以後)
Length at first maturity / 大小 / 重量 / 年龄
Maturity: Lm 54.7, range 45 - ? cm
Max length : 108 cm TL 雄鱼/尚未辨别雌雄; (Ref. 86798); common length : 72.0 cm TL 雄鱼/尚未辨别雌雄; (Ref. 12193); 最大体重: 4.9 kg (Ref. 4699); 最大年龄: 43 年 (Ref. 50937)
简单描述
型态特徵 | 形态测量图
Bases of outer barbels in line with or ahead of inner barbels (Ref. 86798).
Occurs in the bottom of main channels and embayments of large turbid rivers; frequently in flowing water over sand and mixed with gravel and mud. Feeds primarily on larvae of aquatic insects (especially burrowing mayflies, caddis larvae and midge larvae (Ref. 10294)), worms, and crustaceans (Ref. 50937). Spawning occurs from April to June in large rivers in areas of swift current and coarse substrates (Ref. 10294).
出现于大浑浊的河主水道与湾的底部; 时常在流动在沙子上的水方面而且混和着砾石与泥。 主要吃水生昆虫幼生，蠕虫与甲壳动物。 (参考文献 50937)
Life cycle and mating behavior
成熟度 | 繁殖 | 产卵场 | 卵 | 孕卵数 | 仔鱼
北美洲: 在美國密西西比河流域從西方的賓州到蒙大納而且南至路易斯安那; 摩比灣流域，阿拉巴馬州與密西西比; 大河上游，新墨西哥州。 被認為是瀕臨絕種的.(參考文獻 6866) 國際間的買賣限制。 ( 引用2, 自從 1.4.98 以後)
Robins, C.R., R.M. Bailey, C.E. Bond, J.R. Brooker, E.A. Lachner, R.N. Lea and W.B. Scott, 1991. Common and scientific names of fishes from the United States and Canada. Am. Fish. Soc. Spec. Publ. (20):183 p. (Ref. 3814)
人类利用
游钓鱼种: 是的; 水族馆: 公众的水族馆
更多信息
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Estimates based on models
Phylogenetic diversity index (Ref.
82804): PD
50 = 0.6250 [Uniqueness, from 0.5 = low to 2.0 = high].
Bayesian length-weight: a=0.00407 (0.00149 - 0.01114), b=3.16 (2.92 - 3.40), in cm total length, based on LWR estimates for this (Sub)family-body shape (Ref.
93245).
营养阶层 (Ref.
69278): 3.5 ±0.3 se; based on diet studies.
回复力 (Ref.
120179): 非常低的, 最小族群倍增时间超过14 年 (tm=5; tmax=37-43; K=0.13).
Fishing Vulnerability (Ref.
59153): High to very high vulnerability (69 of 100).
