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> Characiformes (Characins) > Alestidae (African tetras)
Etymology: More on author: Günther.

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

; स्वच्छ जल, अलवण जल; खारा पिलाजिक; pH range: 6.0 - 8.0; dH range: 5 - 19; पोटामोड़िरोमस (Ref. 51243). Tropical; 22°C - 26°C (Ref. 1672)

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Africa: present along the Atlantic border of the African continent from Gambia to the Democratic Republic of the Congo (Ref. 2880, 5331, 80290, 81279). Generally found in upper as well as lower river courses and may even occur in brackish waters of estuarine areas (Ref. 2880, 81279). Only Brycinus species that inhabits smaller water courses (Ref. 80290).

Length at first maturity / आकार / वज़न / Age

Maturity: L_m 4.5 range ? - ? cm
Max length : 16.4 cm TL पुल्लिंग / अलिंग; (Ref. 57961)

Short description पहचान कुंजी | आकृति विज्ञान | मौरफोमैटरिक्स

गुदा कांटा: 0; ऐनल सौफट रेज़: 18 - 26. Diagnosis: fronto-parietal fontanel narrow, but always present; 25-34 lateral line scales; 5.5 scales between lateral line and dorsal fin; 15-23 anal fin branched rays; 13-15 gill rakers on lower limb of first gill arch; 6 teeth in outer premaxillary row (Ref. 2880, 80290, 81279). Head length/snout length 3.3-4.4; 8.5-11.5 predorsal scales (Ref. 80290). Precaudal spot elongate, extending to end of caudal fin (Ref. 81279).

Generally found in the upper and lower reaches of big rivers and also in estuarine zones of mixohaline waters (Ref. 2880). The only Brycinus species to penetrate small rivers and streams (Ref. 2880), but such specimens are always smaller than those in large rivers (Ref. 80290). Aquarium keeping: in groups of 5 or more individuals; minimum aquarium size 100 cm (Ref. 51150).

Life cycle and mating behavior Maturities | पुनरुत्पत्ति | Spawnings | Egg(s) | Fecundities | लार्वा

Spawns in pairs or schools.

Main reference Upload your references | संदर्भ | संयोजक | सहयोगीयो

Paugy, D. and S.A. Schaefer, 2007. Alestidae. p. 347-411. In M.L.J. Stiassny, G.G. Teugels and C.D. Hopkins (eds.) Poissons d'eaux douces et saumâtres de basse Guinée, ouest de l'Afrique centrale/The fresh and brackish water fishes of Lower Guinea, west-central Africa. Vol. 1. Coll. Faune et Flore tropicales 42. Istitut de recherche pour le développement, Paris, France, Muséum nationale d'histoire naturelle, Paris, France and Musée royale de l'Afrique centrale, Tervuren, Belgique. 800 p. (Ref. 80290)

IUCN Red List Status (Ref. 130435)

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

CITES

Not Evaluated

CMS (Ref. 116361)

Not Evaluated

Threat to humans

Harmless

Human uses

मात्स्यिकी: ; जलजीवालय: व्यापारिक

FAO - Publication: search | FishSource |

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इंटरनेट स्रोत

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=0.01318 (0.00971 - 0.01789), b=3.00 (2.95 - 3.05), in cm total length, based on LWR estimates for this species (Ref. 93245).

Trophic level (Ref. 69278): 2.2 ±0.0 se; based on diet studies.

लौटाव (Ref. 120179): माध्यम, न्यूनतम जनसंख्या दुगनी होने का समय 1.4 - 4.4 वर्ष। (Fec = 160).

Fishing Vulnerability (Ref. 59153): Low vulnerability (10 of 100).

Price category (Ref. 80766): Unknown.

Nutrients (Ref. 124155): Calcium = 266 [108, 667] mg/100g; Iron = 2.29 [1.13, 5.39] mg/100g; Protein = 18.4 [16.3, 20.7] %; Omega3 = 0.292 [0.153, 0.547] g/100g; Selenium = 34 [16, 75] μg/100g; VitaminA = 19.7 [7.5, 53.6] μg/100g; Zinc = 2.64 [1.87, 3.74] mg/100g (wet weight);

Bryconalestes longipinnis (Günther, 1864)