Actinopterygii (ray-finned fishes) > Characiformes
(Characins) > Alestidae
Etymology: Micralestes: Greek, mikros = small + Greek,lestes = thief (Ref. 45335).
Environment: milieu / climate zone / depth range / distribution range
Freshwater; pelagic. Tropical
Africa: endemic to Lake Tanganyika, present in Lufuko River at Mpala (Ref. 42032, 94006) and in Lukuga River outflow (Ref. 97302).
Size / Weight / Age
Maturity: Lm ?  range ? - ? cm
Max length : 9.0 cm SL male/unsexed; (Ref. 4967)
Morphology | Morphometrics
soft rays: 15 - 18. Body height 3.35-3.6 times in standard length (Ref. 42032). Head length 3.95-4.1 times in standard length (Ref. 42032). Cuspid number: on external row of upper jaw 3-5, on internal row of upper jaw 5-8, on external row of lower jaw 5-7, on internal row of lower jaw 1 (Ref. 42032). Black mediolateral band starting behind the operculum and quickly enlarging towards the back, ending at the origin of the caudal fin (Ref. 42032). Mediolateral band silvery in live specimens (Ref. 42032). Fins without black spot (Ref. 42032).
Inhabits rivers and lagoons (Ref. 4967). Water beetles, insect remains, pieces of weed, algae, sand grains and debris found in stomach (Ref. 36899).
Life cycle and mating behavior
Maturity | Reproduction | Spawning | Eggs | Fecundity | Larvae
Eccles, D.H., 1992. FAO species identification sheets for fishery purposes. Field guide to the freshwater fishes of Tanzania. Prepared and published with the support of the United Nations Development Programme (project URT/87/016). FAO, Rome. 145 p. (Ref. 4967)
IUCN Red List Status (Ref. 115185)
CITES (Ref. 115941)
Threat to humans
Common namesSynonymsMetabolismPredatorsEcotoxicologyReproductionMaturitySpawningFecundityEggsEgg development
ReferencesAquacultureAquaculture profileStrainsGeneticsAllele frequenciesHeritabilityDiseasesProcessingMass conversion
Estimates of some properties based on models
Phylogenetic diversity index (Ref. 82805
= 0.5000 [Uniqueness, from 0.5 = low to 2.0 = high].
Bayesian length-weight: a=0.01122 (0.00514 - 0.02450), b=3.00 (2.81 - 3.19), in cm Total Length, based on LWR estimates for this (Sub)family-body shape (Ref. 93245
Trophic Level (Ref. 69278
): 3.1 ±0.4 se; Based on size and trophs of closest relatives
Resilience (Ref. 69278
): High, minimum population doubling time less than 15 months (Preliminary K or Fecundity.).
Vulnerability (Ref. 59153
): Low vulnerability (10 of 100) .