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Characiformes (Characins) >
Alestidae (African tetras)
Etymology: Micralestes: Greek, mikros = small + Greek,lestes = thief (Ref. 45335).
Eponymy: Lieutenant Maurice Joseph Auguste Marie Raphael Storms (1875–1941) is described in Boulenger’s cryptic etymology as “…a cousin of the late Raymond Storms, so well-known for his important contributions to paleoichthyology”. [...] (Ref. 128868), visit book page.
More on author: Boulenger.
Ambiente: milieu / zona climatica / distribuzione batimetrica / gamma di distribuzione
Ecologia
; acqua dolce pelagico; pH range: 6.0 - 7.6; dH range: 18 - 25. Tropical; 22°C - 26°C (Ref. 2059)
Africa: widely distributed in the Congo River basin (Ref. 42032) in Central African Republic (Ref. 45441) and Democratic Republic of the Congo (Ref. 42032). Also reported from the Rusizi and Malagarasi in Burundi (Ref. 98755), the Lake Chad basin in Central African Republic (Ref. 83569) and the Lake Tanganyika basin in Tanzania (Ref. 4967).
Dimensione / Peso / Età
Maturità: Lm ? range ? - ? cm
Max length : 10.0 cm SL maschio/sesso non determinato; (Ref. 4967)
Breve descrizione
Chiavi di identificazione | Morfologia | Morfometria
Spine dorsali (totale) : 2; Raggi dorsali molli (totale) : 8; Spine anali: 3; Raggi anali molli: 15 - 16. Body height 2.9-3.9 times in standard length (Ref. 42032). Head length 3.7-3.9 times in standard length (Ref. 42032). Cuspid number: external row on upper jaw 5-6, internal row on upper jaw 6-8, external row on lower jaw 5-8, internal row on lower jaw 1 (Ref. 42032). Weakly developed black mediolateral band in front of the pelvic fins but more expressed to the back of the body (Ref. 42032). Mediolateral band silvery in live specimens (Ref. 42032). Fins without black spot (Ref. 42032).
Body shape (shape guide): fusiform / normal.
Inhabits lakes (Ref. 4967).
Ciclo vitale e comportamento di accoppiamento
Maturità | Riproduzione | Deposizione | Uova | Fecondità | Larve
Paugy, D., 1984. Characidae. p. 140-183. In J. Daget, J.-P. Gosse and D.F.E. Thys van den Audenaerde (eds.) Check-list of the freshwater fishes of Africa (CLOFFA). ORSTOM, Paris and MRAC, Tervuren. Vol. 1. (Ref. 5331)
Stato della Lista Rossa IUCN (Ref. 130435: Version 2025-2 (Global))
Minaccia per l'uomo
Harmless
Usi umani
Strumenti
Rapporti speciali
Scarica XML
Fonti Internet
Stime basate su modelli
Indice di diversità filogenetica (Fonte Biblio.
82804): PD
50 = 0.5000 [Uniqueness, from 0.5 = low to 2.0 = high].
Bayesian length-weight: a=0.01072 (0.00491 - 0.02339), b=3.02 (2.84 - 3.20), in cm total length, based on LWR estimates for this (Sub)family-body shape (Ref.
93245).
Livello trofico (Fonte Biblio.
69278): 3.2 ±0.4 se; based on size and trophs of closest relatives
Resilienza (Fonte Biblio.
120179): Alto, tempo minimo di raddoppiamento della popolazione meno di 15 mesi (Preliminary K or Fecundity.).
Vulnerabilità della pesca (Ref.
59153): Low vulnerability (10 of 100).
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