Classification / Names
Common names | Synonyms | Catalog of Fishes (gen., sp.) | ITIS | CoL | WoRMS | Cloffa
Actinopterygii (ray-finned fishes) >
Perciformes (Perch-likes) >
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 / Climate / Range
Ecology
Freshwater; benthopelagic. Tropical, preferred ?
South America: lower río Cuao (Orinoco drainage) in Venezuela.
Size / Weight / Age
Maturity: Lm ?  range ? - ? cm
Max length : 4.0 cm SL male/unsexed; (Ref. 94599)
Short description
Morphology | Morphometrics
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
Maturity | Reproduction | Spawning | Eggs | Fecundity | Larvae
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. 115185)
CITES (Ref. 94142)
Not Evaluated
Threat to humans
Harmless
Human uses
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=0.01622 (0.00720 - 0.03654), b=3.05 (2.86 - 3.24), in cm Total Length, based on LWR estimates for this (Sub)family-body shape (Ref.
93245).
Trophic Level (Ref.
69278): 3.3 ±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) .