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> Gymnotiformes (Knifefishes) > Hypopomidae (Bluntnose knifefishes)
Etymology: Brachyhypopomus: Greek, brachys, eia = short + Greek, hypo = under + Greek, poma, -atos = cover (Ref. 45335); menezesi: Named for Naércio Aquino Menezes, Brazilian ichthyologist, for his important contributions to Neotropical fish systematics..

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

; sötvatten bentopelagisk. Tropical

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South America: middle and upper rio São Francisco drainage in Brazil.

Size / Vikt / Age

Maturity: L_m ? range ? - ? cm
Max length : 11.9 cm TL hane/ej könsbestämd; (Ref. 116763); 11.2 cm TL (female)

Short description Bestämningsnycklar | Morfologi | Morfometri

Brachyhypopomus menezesi is distinguished from other species of the genus Brachyhypopomus by the following combination of characters: presence of accessory electric organ over the opercular region (vs. absence in all congeners except B. bombilla and B. regani); 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 24.7-33.3% of length to end of anal fin (vs. 11.1-17.9% in B. regain) (Ref. 116763).

Facultative air-breathing in the genus (Ref. 126274); Occurs in small rivers, streams, and lakes based on geographical coordinates and labels accompanying the examined museum specimens. Stomach contents of a single specimen consisted of aquatic insect larvae, mostly Chironomidae (Ref. 116763).

Life cycle and mating behavior Maturities | Reproduktion | Spawnings | Egg(s) | Fecundities | Larver

Main reference Upload your references | referenser | Koordinator : Albert, James S. | Medarbetare

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)

IUCN Red List Status (Ref. 130435)

Least Concern (LC) ; Date assessed: 10 November 2020

CITES

Not Evaluated

CMS (Ref. 116361)

Not Evaluated

Threat to humans

Harmless

Human uses

FAO - Publication: search | FishSource |

Ytterligare information

Trophic ecology
Födoslag
Diet compositions
Food consumptions
Food rations
Predatorer

Ecology
Ekologi

Population dynamics
Growths
Max. ages / sizes
Length-weight rel.
Length-length rel.
Length-frequencies
Mass conversions
Recruitments
Abundances

Life cycle
Reproduktion
Maturities
Fecundities
Spawnings
Spawning aggregations
Egg(s)
Egg developments
Larver
Larvdynamik

Distribution
Länder
FAO områden
Ekosystem
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Utplanteringar
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Anatomy
Gill areas
Hjärnstorlek
Otoliths

Physiology
Body compositions
Nutrients
Oxygen consumptions
Swimming type
Swimming speeds
Visual pigment(s)
Fiskljud
Diseases / Parasites
Toxicities (LC50s)

Genetics
Genetik
Electrophoreses
Heritabilities

Human related
Aquaculture systems
Vattenbruksprofiler
Avelslinjer
Ciguatera cases
Stamps, coins, misc.

Outreach
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Taxonomy
Populärnamn
synonymer
Morfologi
Morfometri
Bilder

References
referenser

Verktyg

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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).

Trofisk nivå (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 menezesi Crampton, de Santana, Waddell & Lovejoy, 2017