Nigeria country information

Common names: Ijakere, Saganci, Usawu
Occurrence: native
Salinity: freshwater
Abundance: | Ref:
Importance: | Ref:
Aquaculture: | Ref:
Regulations: | Ref:
Uses: live export: yes;
Comments: Widely distributed in Nigeria (Ref. 31256). Known from Ogun River (Ref. 2914), Oshun River (Ref. 81278, 88135), Niger River basin (Ref. 2914, 81278, 88135), including Benue River (Ref. 2914, 81278, 88135) and Lake Kainji (Ref. 3799, 13861), and Cross River (Ref. 2914, 52861, 81278, 88135).
National Checklist:
Country Information: https://www.cia.gov/library/publications/resources/the-world-factbook/geos/ni.html
National Fisheries Authority:
Occurrences: Occurrences Point map
Main Ref: Decru, E., E. Vreven and J. Snoeks, 2012
National Database:

Common names from other countries

African pike, Angbagne, Ijakere, ... more

Classification / Names Nomi Comuni | Sinonimi | Catalog of Fishes(Genere, Specie) | ITIS | CoL | WoRMS | Cloffa

> Characiformes (Characins) > Hepsetidae (African pikes)
Etymology: Hepsetus: Greek, epsetas, -e, -on = boiled, but there is the following sentence: "oí epsetoi" = certain fishes, and also could be related to "psetta" = grouper (Ref. 45335); odoe: The specific name refers to the local names in the Adangme language of Hepsetus specimens in Ghana: 'Akawo nyagbe', which means 'dog-like teeth' and 'akawo' which means 'attacker' or 'predator' (Ref. 88135).
More on author: Bloch.

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

; acqua dolce demersale; pH range: 6.0 - 7.5; dH range: ? - 18; potamodromo (Ref. 51243). Tropical; 26°C - 28°C (Ref. 2060)

Distribuzione Stati | Aree FAO | Ecosystems | Presenze | Point map | Introduzioni | Faunafri

Africa: easternmost part of West Africa, from the Sassandra River, Ivory Coast, in the west to the Shari River, Central African Republic, in the east; and southwards up to the Kribi River in Cameroon (Ref. 88135). Reports from outside this area refer to other species of Hepsetus (Ref. 88135, 93279, 93907, 108775).

Length at first maturity / Size / Peso / Age

Maturity: L_m 14.0 range ? - ? cm
Max length : 44.2 cm SL maschio/sesso non determinato; (Ref. 83624)

Short description Morfologia | Morfometria

Spine dorsali (totale): 0; Raggi dorsali molli (totale): 9; Spine anali 0; Raggi anali molli: 12; Vertebre: 45 - 49. Diagnosis: This species is distinguished from all other Hepsetus species by the following unique combination of characters: number of lateral line scales low, 43–51; nostril-lower jaw distance short, 36.6–42.1% of head length; number of gill rakers high, 17–23; number of scales between dorsal fin and lateral line 7.5-9.5; number of scales between adipose fin and lateral line 4.5-6.5; head width broad, 32.8–42.3% of head length; and internasal distance high, 21.9–28.3% of head length (Ref. 88135).

This species seems to prefer upper river courses or small rivers where Hydrocynus species are absent or scarce (Ref. 81278).

Life cycle and mating behavior Maturità | Riproduzione | Deposizione | Uova | Fecundity | Larve

Builds a free-floating bubblenest.

Main reference Upload your references | Bibliografia | Coordinatore | Collaboratori

Decru, E., E. Vreven and J. Snoeks, 2012. A revision of the West African Hepsetus (Characiformes: Hepsetidae) with a description of Hepsetus akawo sp. nov. and a redescription of Hepsetus odoe (Bloch, 1794). J. Nat. Hist. 46(1-2):1-23. (Ref. 88135)

IUCN Red List Status (Ref. 130435)

Least Concern (LC) ; Date assessed: 15 May 2019

CITES (Ref. 128078)

Not Evaluated

CMS (Ref. 116361)

Not Evaluated

Threat to humans

Harmless

Human uses

Pesca: pesca di sussistenza; Acquario: Commerciale

FAO(Acquacoltura: production; pesca: production; publication : search) | FishSource |

Informazioni ulteriori

Stati
Aree FAO
Ecosystems
Presenze
Introduzioni
Stocks
Ecologia
Dieta
Prede
Consumo di cibo
Razione

Nomi Comuni
Sinonimi
Metabolismo
Predatori
Ecotossicologia
Riproduzione
Maturità
Deposizione
Fecundity
Uova
Egg development

Age/Size
Accrescimento
Length-weight
Length-length
Length-frequencies
Morfometria
Morfologia
Larve
Dinamica popolazioni larvali
Reclutamento
Abbondanza

Bibliografia
Acquacoltura
Profilo di acquacoltura
Varietà
Genetica
Electrophoreses
Ereditarietà
Malattie
Elaborazione
Mass conversion

Collaboratori
Immagini
Stamps, Coins Misc.
Suoni
Ciguatera
Velocità
Modalità di nuoto
Area branchiale
Otoliths
Cervelli
Vista

Strumenti

Special reports

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

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Summary page | Point data | Nomi Comuni | Photos

Fonti Internet

Estimates based on models

Phylogenetic diversity index (Ref. 82804): PD₅₀ = 0.5312 [Uniqueness, from 0.5 = low to 2.0 = high].

Bayesian length-weight: a=0.00550 (0.00411 - 0.00735), b=3.13 (3.05 - 3.21), in cm Total Length, based on LWR estimates for this species (Ref. 93245).

Trophic level (Ref. 69278): 4.1 ±0.71 se; based on food items.

Resilienza (Ref. 120179): Medio, tempo minimo di raddoppiamento della popolazione 1.4 - 4.4 anni (K=0.27-0.59; tmax=5; Fec < 10,000).

Fishing Vulnerability (Ref. 59153): Low vulnerability (21 of 100).

Price category (Ref. 80766): Unknown.

Hepsetus odoe (Bloch, 1794)