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Teleostei (teleosts) > Cichliformes (Cichlids, convict blennies) > Cichlidae (Cichlids) > Geophaginae
Etymology: Apistogramma: Greek, apisto = uncertain + Greek, gramma = graphic signal (Ref. 45335); helkeri: Named after Oliver Helker, one of the collectors, who brought this species to the attention of the authors and provided several photos and the information on the collecting site..

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

Freshwater; benthopelagic. Tropical

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

South America: lower río Cuao (Orinoco drainage) in Venezuela.

Size / Weight / Age

Maturity: L_m ? range ? - ? cm
Max length : 4.0 cm SL male/unsexed; (Ref. 94599)

Short description Identification keys | Morphology | Morphometrics

Dorsal spines (total): 14 - 15; Dorsal soft rays (total): 7; Anal spines: 3; Anal soft rays: 6.

Collected from a black-water swamp. Occurs in association with other fish which include Nannostomus marginatus Eigenmann, 1909, N. trifasciatus Steindachner, 1876, Carnigiella strigata (Günther, 1864), the dwarf cichlids Laetacara fulvipinnis Staeck & Schindler, 2007 and Apistogramma uaupesi Kullander, 1980 (Ref. 94599).

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

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

Schindler, I. and W. Staeck, 2013. Description of Apistogramma helkeri sp. n., a new geophagine dwarf cichlid (Teleostei: Cichlidae) from the lower río Cuao (Orinoco drainage) in Venezuela. Vert. Zool. 63(3):301-306. (Ref. 94599)

IUCN Red List Status (Ref. 130435)

Data deficient (DD) ; Date assessed: 18 May 2017

CITES

Not Evaluated

CMS (Ref. 116361)

Not Evaluated

Threat to humans

Harmless

Human uses

FAO - Publication: search | FishSource |

More information

Trophic ecology
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Ecology
Ecology

Population dynamics
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Length-weight rel.
Length-length rel.
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Life cycle
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Egg(s)
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Distribution
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Anatomy
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Brains
Otoliths

Physiology
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Swimming type
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Visual pigment(s)
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Diseases / Parasites
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Genetics
Genetics
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Human related
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Stamps, coins, misc.

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Internet sources

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=0.01950 (0.00838 - 0.04534), b=2.99 (2.81 - 3.17), in cm total length, based on LWR estimates for this Genus-body shape (Ref. 93245).

Trophic level (Ref. 69278): 3.3 ±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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Apistogramma helkeri Schindler & Staeck, 2013