Classification / Names Populärnamn | synonymer | Catalog of Fishes(Släkte, Arter) | ITIS | CoL | WoRMS | Cloffa

> Gymnotiformes (Knifefishes) > Hypopomidae (Bluntnose knifefishes)
Etymology: Akawaio: Named for Akawaio Amerindians that populate the region of the upper Mazaruni and to recognize their valuable help while studying the fishes of their lands. A masculine noun.; penak: From the Akawaio name ‘penak’, which is apparently used unambiguously for this species. A masculine noun in apposition..

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

; sötvatten bentopelagisk. Tropical

Utbredning Länder | FAO områden | Ekosystem | Förekomster | Point map | Utplanteringar | Faunafri

South America: endemic to the upper Mazaruni River in Guyana.

Size / Vikt / Age

Maturity: L_m ? range ? - ? cm
Max length : 21.7 cm TL hane/ej könsbestämd; (Ref. 94087)

Short description Morfologi | Morfometri

Mjukstrålar i analfenan: 173 - 199. Can be diagnosed by the following characters: coracoid with a foramen; opercle with concave posterior margin; one ossified basibranchial; absence of postpectoral or humeral accessory electric organs; 14 total pectoral-fin rays (ii-iii) (shared with ranges of some Brachyhypopomus species0; 173-199 anal-fin rays (shared with ranges of few species of Brachyhypopomus and Microsternarchus); snout length 24.7-32.6% HL; five pectoral radials, in some individuals four partially fused to five (shared with Hypopomus species); mesopterygoid with short or reduced ascending process (shared with Microsternarchus species); mesocoracoid bridge absent (shared with most species of Brachyhypopomus, Microsternarchus and Racenisia); and 17 precaudal vertebrae (shared with some Brachyhypopomus species) (Ref. 94087).

Life cycle and mating behavior Könsmognad | Reproduktion | Lek | Ägg | Fecundity | Larver

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

Maldonado-Ocampo, J.A., H. López-Fernández, D.C. Taphorn, C.R. Bernard, W.G.R. Crampton and N. Lovejoy, 2013. Akawaio penak, a new genus and species of Neotropical electric fish (Gymnotiformes, Hypopomidae) endemic to the upper Mazarumi River in the Guiana Shield. Zoologica Scripta (Ref. 94087)

IUCN Red List Status (Ref. 130435)

Endangered (EN) (B1ab(iii)+2ab(iii)); Date assessed: 14 December 2022

CITES

Not Evaluated

CMS (Ref. 116361)

Not Evaluated

Threat to humans

Harmless

Human uses

FAO - Publication: search | FishSource |

Ytterligare information

Länder
FAO områden
Ekosystem
Förekomster
Utplanteringar
Stocks
Ekologi
Föda
Födoslag
Födointag
Näringsinnehåll

Populärnamn
synonymer
Metabolik
Predatorer
Ekotoxikologi
Reproduktion
Könsmognad
Lek
Spawning aggregation
Fecundity
Ägg
Egg development

Age/Size
Tillväxt
Length-weight
Length-length
Length-frequencies
Morfometri
Morfologi
Larver
Larvdynamik
Rekrytering
Abundans
BRUVS

referenser
Vattenbruk
Vattenbruksprofil
Avelslinjer
Genetik
Electrophoreses
Ärftlighet
Sjukdomar
Behandling
Nutrients
Mass conversion

Medarbetare
Bilder
Stamps, Coins Misc.
Ljud
Ciguatera
Hastighet
Simsätt
Gälyta
Otoliths
Hjärnstorlek
Syn

Verktyg

Special reports

Check for Aquarium maintenance | Check for Species Fact Sheets | Check for Aquaculture Fact Sheets

Download XML

Summary page | Point data | Populärnamn | Photos

Internet-källor

Estimates based on models

Phylogenetic diversity index (Ref. 82804): PD₅₀ = 1.0000 [Uniqueness, from 0.5 = low to 2.0 = high].

Bayesian length-weight: a=0.00617 (0.00199 - 0.01914), b=3.06 (2.81 - 3.31), in cm total length, based on LWR estimates for this (Sub)family-body shape (Ref. 93245).

Trofisk nivå (Ref. 69278): 3.2 ±0.4 se; based on size and trophs of closest relatives

Fishing Vulnerability (Ref. 59153): Low vulnerability (12 of 100).

Tillbaka till Sök

Random Species

Topp

Akawaio penak Maldonado-Ocampo, López-Fernández, Taphorn, Bernard, Crampton & Lovejoy, 2013