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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.
Meio ambiente: milieu / Zona climática / intervalo de profundidade / faixa 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 de primeira maturação / 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. registrada: 43 anos (Ref. 50937)
Descrição suscinta
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)
Status na Lista Vermelha da UICN (Ref. 130435: Version 2025-2 (Global))
Ameaça para os humanos
Harmless
Uso pelos humanos
Pescarias: espécies comerciais; peixe esportivo: sim; Aquário: Aquários públicos
Ferramentas
Relatórios especiais
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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(a), 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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