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> Gymnotiformes (Knifefishes) > Hypopomidae (Bluntnose knifefishes)
Etymology: Brachyhypopomus: Greek, brachys, eia = short + Greek, hypo = under + Greek, poma, -atos = cover (Ref. 45335); provenzanoi: Named for Francisco Provenzano Rizzi, Venezuelan ichthyologist, for his contributions to Neotropical ichthyology. A noun in the genitive case..

Environment: milieu / climate zone / depth range / distribution range экология

; пресноводный донно-пелагический; pH range: 3.1 - 4.0. Tropical; 26°C - 28°C (Ref. 116763)

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South America: upper Orinoco and upper Negro (Amazonas drainage) in Venezuela.

Size / Вес / Возраст

Maturity: L_m ? range ? - ? cm
Max length : 9.4 cm TL самец/пол неопределен; (Ref. 116763); 11.0 cm TL (female)

Краткое описание определительные ключи | морфология | морфометрия

членистые (мягкие) лучи анального плавника: 162 - 195. Brachyhypopomus provenzanoi is distinguished from other species of the genus Brachyhypopomus by the absence of scales in middorsal region of anterior third of body (vs. presence in all congeners except B. benjamini) and by its dorsal surface of body with irregular pattern of distinct dark blotches on depigmented tan-colored background (vs. speckled with small brown chromatophores on light brown background in B. benjamini) (Ref. 116763)

Facultative air-breathing in the genus (Ref. 126274); Found in small, gently flowing, low-conductivity clearwater terra firme forest and savanna streams, and in static leaf-litter choked blackwater streams and swamps in Mauritia palm swamps. Most specimens in streams were observed sheltering in submerged and marginal aquatic vegetation growing in sandy beds, and those in Mauritia palm swamps were collected from dense leaf litter banks and root mats. Sympatric and syntopic with Brachyhypopomus bullocki, B. brevirostris, and B. sullivani in the type locality region. Food items food in the stomach contents were aquatic insect larvae and other small aquatic invertebrates (Ref. 116763).

Life cycle and mating behavior Maturities | размножение | Spawnings | Egg(s) | Fecundities | личинки

Основная ссылка Upload your references | ссылки | координатор : Albert, James S. | соавторы

Crampton, W.G.R., C.D. de Santana, J.C. Waddell and N.R. Lovejoy, 2017. A taxonomic revision of the Neotropical electric fish genus Brachyhypopomus (Ostariophysi: Gymnotiformes: Hypopomidae), with descriptions of 15 new species. Neotrop. ichthyol. 14(4):e150146. (Ref. 116763)

Статус Красного Списка МСОП (Ref. 130435)

Нехватка данных (DD) ; Date assessed: 07 September 2020

CITES

Not Evaluated

CMS (Ref. 116361)

Not Evaluated

Угроза для людей

Harmless

Использование человеком

FAO - Publication: search | FishSource |

дополнительная информация

Trophic ecology
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Ecology
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Estimates based on models

Phylogenetic diversity index (Ref. 82804): PD₅₀ = 0.5000 [Uniqueness, from 0.5 = low to 2.0 = high].

Bayesian length-weight: a=0.00380 (0.00145 - 0.00994), b=3.06 (2.83 - 3.29), in cm total length, based on LWR estimates for this (Sub)family-body shape (Ref. 93245).

Trophic level (Ref. 69278): 3.1 ±0.4 se; based on size and trophs of closest relatives

Fishing Vulnerability (Ref. 59153): Low vulnerability (10 of 100).

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Brachyhypopomus provenzanoi Crampton, de Santana, Waddell & Lovejoy, 2017