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Characiformes (Characins) >
Alestidae (African tetras)
Etymology: Bryconaethiops: Greek, bryko = to bite+ Aethiops, region in North east Africa (Ref. 45335).
More on author: Günther.
Issue
The synonym Bryconaethiops yseuxi is revalidated (Ref. 74421).
Environment: milieu / climate zone / εύρος βάθους / distribution range
Οικολογία
; Γλυκού νερού Πελαγικό(ά); pH range: 6.0 - 7.5; dH range: 8 - 18. Tropical; 24°C - 28°C (Ref. 2060)
Africa: Ogowe (Ref. 5331, 80290), Nyong, Lobé, Ntem, Kouilou basins and in Nkomi lagoon (Ref. 80290). Also in the lower, middle (Ref. 80290) and upper (Ref. 5331) Congo and the Malagarasi (Ref. 54847). Reports from Lake Kivu (Ref. 5331, 80290) are based on an erroneous locality interpretation whereby the Kivu Province was mistaken for Lake Kivu (Ref. 46152).
Μέγεθος / Βάρος / Age
Γεννητική Ωρίμανση: Lm ? range ? - ? cm
Max length : 17.2 cm SL αρσενικό/απροσδιόριστο; (Ref. 74421)
Ραχιαίες άκανθες (συνολικά) : 0; Μαλακές ραχιαίες ακτίνες (συνολικά) : 10; Εδρικές άκανθες: 0; Μαλακές εδρικές ακτίνες: 18 - 23. Diagnosis: 6.5-7.5 scales in transverse row between lateral line and dorsal fin origin; 12 scales around caudal peduncle (Ref. 74421, 80290); 35-40 (Ref. 80290) or 34-41 (Ref. 74421) lateral line scales. Eye diameter/head length 26-40% (Ref. 80290) or 31.4-43.8 (Ref. 74421). 15-20 (Ref. 80290) or 17-19 (Ref. 74421) anal fin branched rays.
Body shape (shape guide): fusiform / normal.
Affinities: similar to B. macrops but with a higher number of scales around caudal peduncle and a smaller eye (Ref. 80290).
Life cycle and mating behavior
Γεννητική Ωρίμανση | Αναπαραγωγή | Γεννοβολία | Αβγά | Γονιμότητα | Προνύμφες
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: Version 2025-1)
Threat to humans
Harmless
Human uses
Εργαλεία
Special reports
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Διαδικτυακές πηγές
Estimates based on models
Phylogenetic diversity index (Αναφ.
82804): PD
50 = 0.5312 [Uniqueness, from 0.5 = low to 2.0 = high].
Bayesian length-weight: a=0.01122 (0.00605 - 0.02082), b=3.04 (2.88 - 3.20), in cm total length, based on LWR estimates for this species & (Sub)family-body (Ref.
93245).
Τροφικό Επίπεδο (Αναφ.
69278): 3.1 ±0.4 se; based on size and trophs of closest relatives
Ελαστικότητα (Αναφ.
120179): Υψηλό, ελάχιστος χρόνος για διπλασιασμό πληθυσμού < 15 μήνες (Preliminary K or Fecundity.).
Fishing Vulnerability (Ref.
59153): Low vulnerability (11 of 100).
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