Common names from other countries
Teleostei (teleosts) >
Characiformes (Characins) >
Crenuchidae (South American darters) > Characidiinae
Etymology: Melanocharacidium: Greek, melan, -anos = black + Greek, diminutive, charax = a marine fish woithout identification (Ref. 45335); nigrum: Specific name refers to the black pigmentation covering the whole the body. Although omitted in Ref. 37059, Buckup (pers. comm. 28/08/03) informs us that M. nigrum was correctly included in the working manuscript..
Environment: milieu / climate zone / depth range / distribution range
Ecology
Freshwater; benthopelagic. Tropical
South America: Amazon basin, rivers draining the Guiana Shield.
Size / Weight / Age
Maturity: Lm ?  range ? - ? cm
Max length : 6.7 cm SL male/unsexed; (Ref. 48602)
Maximum length from CLOFFSCA manuscript (Buckup pers. comm., 13/11/03).
Life cycle and mating behavior
Maturities | Reproduction | Spawnings | Egg(s) | Fecundities | Larvae
Buckup, P.A., 1993. Review of the characidiin fishes (Teleostei: Characiformes), with descriptions of four new genera and ten new species. Ichthyol. Explor. Freshwat. 4(2):97-154. (Ref. 13683)
IUCN Red List Status (Ref. 130435)
CITES (Ref. 128078)
Not Evaluated
Threat to humans
Harmless
Human uses
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Estimates based on models
Phylogenetic diversity index (Ref.
82804): PD
50 = 0.5020 [Uniqueness, from 0.5 = low to 2.0 = high].
Bayesian length-weight: a=0.01000 (0.00244 - 0.04107), b=3.04 (2.81 - 3.27), in cm Total Length, based on all LWR estimates for this body shape (Ref.
93245).
Trophic level (Ref.
69278): 3.5 ±0.3 se; based on size and trophs of closest relatives
Fishing Vulnerability (Ref.
59153): Low vulnerability (10 of 100).