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Acipenseriformes (Sturgeons and paddlefishes) >
Acipenseridae (Sturgeons)
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.
Ambiente: milieu / zona climática / intervalo de profundidade / gama de distribuição
Ecologia
; Água doce demersal; potamódromo (Ref. 130035). Temperate; 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.
Comprimento na primeira maturidade / Tamanho / Peso / Idade
Maturidade: Lm 54.7, range 45 - ? cm
Max length : 108 cm TL macho/indeterminado; (Ref. 86798); common length : 72.0 cm TL macho/indeterminado; (Ref. 12193); peso máx. Publicado: 4.9 kg (Ref. 4699); Idade máx. registada: 43 anos (Ref. 50937)
Descrição breve
Chaves de identificação | Morfologia | Morfometria
Bases of outer barbels in line with or ahead of inner barbels (Ref. 86798).
Body shape (shape guide): elongated.
Adults occur in the bottom of main channels and embayments of large turbid rivers; frequently in flowing water over sand and mixed with gravel and mud. They feed 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).
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)
Categoria na Lista Vermelha da IUCN (Ref. 130435: Version 2025-2 (Global))
Ameaça para o homem
Harmless
Utilização humana
Pescarias: espécies comerciais; peixe desportivo: sim; Aquário: Aquários públicos
Ferramentas
Relatórios especiais
Descarregue XML
Fontes da internet
Estimativas baseadas em modelos
Índice de diversidade filogenética (Ref. 82804) |
PD50 = 0.6250 [Uniqueness, from 0.5 = low to 2.0 = high]. |
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Bayesian length-weight
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a=0.00309 (0.00137 - 0.00696), b=3.18 (2.99 - 3.37), in cm total length, based on LWR estimates for this (Sub)family-body shape (Ref. 93245). |
Nível Trófico (Ref. 69278) |
3.5 ±0.3 se; based on diet studies. |
Resiliência (Ref. 120179) |
Muito baixo, tempo mínimo de duplicação da população maior que 14 anos (tm=5; tmax=43; K=0.13). |
Vulnerabilidade da pesca (Ref. 59153) |
High to very high vulnerability (69 of 100). 🛈 |
Categoria de preço (Ref. 80766) |
Unknown.
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