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Teleostei (teleosts) > Characiformes (Characins) > Characidae (Characins; tetras) > Stethaprioninae
Etymology: Hemigrammus: Greek, hemi = half + Greek, gramma = letter, signal (Ref. 45335); changae: Named for the late Fonchii Ingrid Chang Matzunaga, a Peruvian ichthyologist..

Environment: milieu / climate zone / depth range / distribution range Ecology

Freshwater; pelagic-neritic. Tropical

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South America: río Madre de Dios and río Mamoré basins, upper río Madeira basin, in southeastern Peru and Bolivia.

Size / Weight / Age

Maturity: L_m ? range ? - ? cm
Max length : 3.2 cm SL male/unsexed; (Ref. 120197)

Occurs in slow-flowing streams at "aguajales" (wetlands dominated by Mauritia flexuosa palms) which typically possess black water, a large amount of decayed organic matter, and are typically shallow. The type locality was a formerly a gold mining area that is in the process of recovery due to the implantation of a private conservation concession. This species is also recorded from oxbow lakes and, in Bolivia, from lakes and streams at the llanos (seasonally flooded savannahs). It is sympatric, and in some localities syntopic with Hemigrammus lunatus, but the latter species is more commonly found in floodplain lakes from white water rivers, a type of habitat where H. changae is apparently uncommon (Ref. 120197).

Life cycle and mating behavior Maturities | Reproduction | Spawnings | Egg(s) | Fecundities | Larvae

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Ota, R.P., F.C.T. Lima and M.H. Hidalgo, 2019. A new species of Hemigrammus Gill (Characiformes: Characidae) from the río Madeira basin in Peru and Bolivia. Zootaxa 4577(2):335-347. (Ref. 120197)

IUCN Red List Status (Ref. 130435)

Vulnerable (VU) (B2ab(iii)); Date assessed: 23 November 2020

CITES

Not Evaluated

CMS (Ref. 116361)

Not Evaluated

Threat to humans

Harmless

Human uses

FAO - Publication: search | FishSource |

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Estimates based on models

Phylogenetic diversity index (Ref. 82804): PD₅₀ = 0.5000 [Uniqueness, from 0.5 = low to 2.0 = high].

Bayesian length-weight: a=0.01202 (0.00548 - 0.02637), b=3.08 (2.90 - 3.26), in cm total length, based on LWR estimates for this (Sub)family-body shape (Ref. 93245).

Trophic level (Ref. 69278): 3.0 ±0.4 se; based on size and trophs of closest relatives

Resilience (Ref. 120179): High, minimum population doubling time less than 15 months (Preliminary K or Fecundity.).

Fishing Vulnerability (Ref. 59153): Low vulnerability (10 of 100).

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Hemigrammus changae Ota, Lima & Hidalgo, 2019