Classification / Names
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Gymnotiformes (Knifefishes) >
Hypopomidae (Bluntnose knifefishes)
Etymology: Brachyhypopomus: Greek, brachys, eia = short + Greek, hypo = under + Greek, poma, -atos = cover (Ref. 45335); palenque: Derived from the río Palenque, a Pacific Ocean drainage of Ecuador, where the type series was collected. A noun in apposition..
Environment: milieu / climate zone / depth range / distribution range
ນິເວດວິທະຍາ
; ນ້ຳຈືດ ກ່ຽວກັບ (ຢູ່)ເທິງຊັ້ນພື້ນດິນໃນທະເລເປີດ; pH range: 6.5 - ?. Tropical; 24°C - 24°C (Ref. 116763)
South America: Ecuador.
ຂະໜາດ / ນ້ຳໜັກ / Age
Maturity: Lm ? range ? - ? cm
Max length : 20.3 cm TL ຕົວຜູ້/ບໍ່ມີເພດ; (Ref. 116763); 15.7 cm TL (female)
Short description
ຕົວທີ່ໃຊ້ໃນການຈຳແນກຊະນິດ | ສະລີລະວິທະຍາ | ການວັດແທກຮູບຮ່າງລັກສະນະພາຍນອກຂອງດິນ,ສັດ,ປາ…
ຄີກົ້ນຂອງປາ: 180 - 229. Brachyhypopomus palenque is distinguished from other species of the genus Brachyhypopomus by the following combination of characters: caudal filament length 7.4-14.0% of length to end of anal fin (vs. 14.1-83.1% in B. alberti, B. batesi, B. benjamini, B. brevirostris, B. bullocki, B. cunia, B. draco, B. gauderio, B. hamiltoni, B. hendersoni, B. janeiroensis, B. jureiae, B. menezesi, B. pinnicaudatus, B. provenzanoi, B. sullivani, and B. walteri); pale stripe along middorsal region absent (vs. prominent pale uninterrupted middorsal stripe from occipital region to base of caudal filament present in B. arrayae, B. beebei, and B. belindae); mouth width 25.1-37.8% HL (vs. 15.9-23.2% in B. bennetti and B. flavipomus); accessory electric organ over the opercular region absent (vs. present in B. bombilla and B. regani); 19-22 precaudal vertebrae (vs. 24-26 in B. verdii); continuous or discontinuous dark vertical or diagonally oriented bars or saddles on body surface dorsal to lateral line absent (vs. present in B. diazi and B. palenque) (Ref. 116763).
Facultative air-breathing in the genus (Ref. 126274); Inhabits small streams and rivers to an altitude of ca. 650 m. Collected from leaf litter or submerged root mats, usually up against or under logs or large rocks. Omnivorous. Feeds on aquatic invertebrates, predominantly larval Chironomidae and Coleoptera in the type locality (Ref. 116763).
Life cycle and mating behavior
Maturities | ການສືບພັນ | Spawnings | Egg(s) | Fecundities | ຕົວອ່ອນ
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)
Threat to humans
Harmless
Human uses
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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).
ຊັ້ນເຂດຮ້ອນ (Ref.
69278): 3.2 ±0.4 se; based on size and trophs of closest relatives
Fishing Vulnerability (Ref.
59153): Low vulnerability (10 of 100).
