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> Gymnotiformes (Knifefishes) > Hypopomidae (Bluntnose knifefishes)
Etymology: Brachyhypopomus: Greek, brachys, eia = short + Greek, hypo = under + Greek, poma, -atos = cover (Ref. 45335); regani: Named for Charles Tate Regan (1878-1943), British 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. Tropical

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South America: Brazil, Ecuador, Guyana, Peru, Suriname, and Venezuela. Known from the Amazon basin, Orinoco drainage, the Essequibo River, and some coastal drainages of Guyana.

Size / Вес / Возраст

Maturity: L_m ? range ? - ? cm
Max length : 15.6 cm TL самец/пол неопределен; (Ref. 116763); 14.1 cm TL (female)

Краткое описание определительные ключи | морфология | морфометрия

членистые (мягкие) лучи анального плавника: 165 - 205. Brachyhypopomus regani is distinguished from other species of the genus Brachyhypopomus by the following combination of characters: presence of accessory electric organ over opercular region (vs. absence in all congeners except B. bombilla and B. menezesi); dorsal surface with large dark blotches against a lighter background (vs. dorsal surface speckled with small brown chromatophores on a pale background in B. bombilla); and caudal filament length 11.1-17.9% of length to end of anal fin (vs. 24.-33.3% in B. menezesi) (Ref. 116763).

Facultative air-breathing in the genus (Ref. 126274); Occurs only in high-conductivity whitewater floodplains in floating rafts of macrophytes and leaf litter of newly-inundated forest. Feeds on aquatic insect larvae, microcrustacea, and other small aquatic invertebrates with a predominance of Chironomidae larvae. Spawns in floating macrophytes during the rising and high water period (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)

Не вызывающий беспокойства (LC) ; Date assessed: 09 September 2020

CITES

Not Evaluated

CMS (Ref. 116361)

Not Evaluated

Угроза для людей

Harmless

Использование человеком

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дополнительная информация

Trophic ecology
пищевые объекты
Diet compositions
Food consumptions
Food rations
хищники

Ecology
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Population dynamics
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Length-weight rel.
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Размерный состав
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Life cycle
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Egg(s)
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Anatomy
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Swimming type
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Visual pigment(s)
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Human related
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Stamps, coins, misc.

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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 regani Crampton, de Santana, Waddell & Lovejoy, 2017