>
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
البيئة
; المياه العذبة قاعية التغذية و المعيشة. Tropical
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.
الحجم / وزن / العمر
Maturity: Lm ? range ? - ? cm
Max length : 15.6 cm TL ذكر/ مختلط الجنس; (Ref. 116763); 14.1 cm TL (female)
وصف مختصر
مفاتيح التعريف | الوصف الخارجي | قياسات المظهر الخارجي
أشعه شرجية لينه: 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 | التكاثر | Spawnings | Egg(s) | Fecundities | Larvae
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)
استخدامات بشرية
أدوات
تقارير خاصة
Download XML
مصادر علي الأنترنت
Estimates based on models
Phylogenetic diversity index (Ref.
82804): PD
50 = 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).
مستوى غذائي (Ref.
69278): 3.1 ±0.4 se; based on size and trophs of closest relatives
Fishing Vulnerability (Ref.
59153): Low vulnerability (10 of 100).
