Actinopterygii (ray-finned fishes) >
Characiformes (Characins) >
Distichodontidae (Distichodus)
Etymology: Nannocharax: Latin, nannus = small + Greek, charax = a marine fish without identification (Ref. 45335); reidi: Named in honor of the collector of the specimens that served as the basis of the description, Dr. Gordon McGregor Reid, of the North of England Zoological Society, who first reported that these samples might represent an undescribed form (Ref. 54201). More on author: Vari.
Environment / Climate / Range
Ecology
Freshwater; pelagic. Tropical, preferred ?
Size / Weight / Age
Maturity: Lm ?  range ? - ? cm
Max length : 6.4 cm SL male/unsexed; (Ref. 81638)
Short description
Morphology | Morphometrics
Dorsal
spines
(total): 0;
Dorsal
soft rays
(total): 10-12;
Anal
spines: 0;
Anal
soft rays: 8 - 10;
Vertebrae: 36 - 38. Diagnosis: 46-48 (Ref. 81638) or 47-49 (Ref. 54201) lateral line scales. 6-8 anal fin branched rays; tip of pelvic fin falling short of, or barely extending to rear of, vent; dark pigmentation on body in form of broad bars or with overall dark pigmentation; adipose fin pigmented to at least some degree; completely dark in some larger individuals (Ref. 81638).
Life cycle and mating behavior
Maturity | Reproduction | Spawning | Eggs | Fecundity | Larvae
Vari, R.P. and C.J. Ferraris Jr., 2004. A new species of Nannocharax (Characiformes: Distichodontidae) from Cameroon, with the description of contact organs and breeding tubercles in the genus. Proc. Biol. Soc. Wash. 117(4):551-563. (Ref. 54201)
IUCN Red List Status (Ref. 109396)
CITES (Ref. 94142)
Not Evaluated
Threat to humans
Harmless
Human uses
Fisheries:
More information
Common namesSynonymsMetabolismPredatorsEcotoxicologyReproductionMaturitySpawningFecundityEggsEgg development
Age/SizeGrowthLength-weightLength-lengthLength-frequenciesMorphometricsMorphologyLarvaeLarval dynamicsRecruitmentAbundance
ReferencesAquacultureAquaculture profileStrainsGeneticsAllele frequenciesHeritabilityDiseasesProcessingMass conversion
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Estimates of some properties based on models
Phylogenetic diversity index (Ref.
82805): PD
50 = 0.5000 [Uniqueness, from 0.5 = low to 2.0 = high].
Bayesian length-weight: a=0.00380 (0.00147 - 0.00985), b=3.11 (2.88 - 3.34), based on LWR estimates for this (Sub)family-body shape (Ref.
93245).
Trophic Level (Ref.
69278): 3.2 ±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) .