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Teleostei (teleosts) > Cichliformes (Cichlids, convict blennies) > Cichlidae (Cichlids) > Geophaginae
Etymology: Guianacara: Composed from Guyana + Tupí, guaraní, acará = the name of a fish (Ref. 45335); stergiosi: Named for Basil Stergios.
Eponymy: Basil Stergios is a botanist at the Universidad Nacional Experimental de los Llanos Occidentales, whose numerous expeditions into remote regions of southern Venezuela have uncovered undescribed fishes, as well as plants. [...] (Ref. 128868), visit book page.
More on authors: López-Fernández, Taphorn & BaechleKullander.

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

Freshwater; pelagic. Subtropical

Distribution Countries | FAO areas | Ecosystems | Occurrences | Point map | Introductions | Faunafri

South America: Venezuela.

Size / Weight / Age

Maturity: L_m ? range ? - ? cm
Max length : 8.0 cm SL male/unsexed; (Ref. 57436)

Short description Identification keys | Morphology | Morphometrics

This species is distinguished from G. oelemariensis subgenus Oelemaria) by possessing 2 supraneural bones and a midlateral bar and a midlateral spot (vs. absence of a midlateral bar in G. oelemariensis). G. stergiosi is distinguished from all other species in the subgenus Guianacara by possessing of a round midlateral spot placed almost entirely below the upper lateral line, and representing the darkest area in the midlateral bar (the upper lateral line is in contact with the upper fifth of the round midlateral spot; midlateral bar progressively fades, and the midlateral spot becomes darker in all but small juvenile specimens) (Ref. 57436).

Inhabits moderately shallow, clear-black, acid waters with slow to moderate currents on rocky bottoms (Ref. 57436).

Life cycle and mating behavior Maturity | Reproduction | Spawning | Eggs | Fecundity | Larvae

Main reference Upload your references | References | Coordinator : Kullander, Sven O. | Collaborators

López-Fernández, H., D.C. Taphorn Baechle and S. Kullander, 2006. Two new species of Guianacara from the Guiana Shield of Eastern Venezuela (Perciformes: Cichlidae). Copeia 2006(3):384-395. (Ref. 57436)

IUCN Red List Status (Ref. 130435: Version 2024-1)

Least Concern (LC) ; Date assessed: 19 June 2017

CITES

Not Evaluated

CMS (Ref. 116361)

Not Evaluated

Threat to humans

Harmless

Human uses

FAO - Publication: search | FishSource |

More information

Trophic ecology
Food items
Diet composition
Food consumption
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Predators

Ecology
Ecology

Population dynamics
Growth parameters
Max. ages / sizes
Length-weight rel.
Length-length rel.
Length-frequencies
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Abundance

Life cycle
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Maturity
Maturity/Gills rel.
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Eggs
Egg development
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Distribution
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Anatomy
Gill area
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Physiology
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Swimming type
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Visual pigments
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Toxicity (LC50s)

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Genetics
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Internet sources

Estimates based on models

Phylogenetic diversity index (Ref. 82804): PD₅₀ = 0.5078 [Uniqueness, from 0.5 = low to 2.0 = high].

Bayesian length-weight: a=0.01995 (0.00926 - 0.04297), b=3.01 (2.83 - 3.19), in cm total length, based on LWR estimates for this (Sub)family-body shape (Ref. 93245).

Trophic level (Ref. 69278): 3.3 ±0.5 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).

Guianacara stergiosi López-Fernández, Taphorn Baechle & Kullander, 2006