Classification / Names Common names | Synonyms | Catalog of Fishes(genus, species) | ITIS | CoL | WoRMS | Cloffa

Teleostei (teleosts) > Gymnotiformes (Knifefishes) > Sternopygidae (Glass knifefishes)
Etymology: Eigenmannia: From Eigenmann, 1910, researcher of faunistic studies (Ref. 45335); waiwai: The specific name waiwai is a reference to the indigenous people whose home territory proximates the type locality for the species..

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

Freshwater; benthopelagic. Tropical

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

South America: Rio Mapuera, Rio Trombetas basin in Pará, Brazil.

Size / Weight / Age

Maturity: L_m ? range ? - ? cm
Max length : 22.4 cm TL male/unsexed; (Ref. 115689)

Short description Morphology | Morphometrics

Anal soft rays: 167 - 195. Eigenmannia waiwai differs from other members of the E. trilineata species group by having the length of anterodorsal process of maxilla equal to 1.5 times the width of the posterior nostril (vs. equal to 50% of the width of posterior nostril in E. antonioi, E. desantanai, E. guairaca, E. muirapinima, E. pavulagem, and E. vicentespelaea, or equal to the width of the posterior nostril in E. matintapereira, E. microstoma, and E. trilineata). In addition, it is distinguished from other species of the E. trilineata species group, with the exception of E. vicentespelaea, by having subterminal mouth (vs. terminal mouth). It can be diagnosed from E. vicentespelaea by having nine or ten longitudinal series of scales above the lateral line (vs. seven or eight), body depth at the vertical through the tip of longest pectoral-fin ray, 14.9-18.7% LEA (vs. 10.5-14.5%), depth of the posterodorsal expansion on infraorbitals 1 + 2 less than 50% of length of infraorbitals 1 + 2 (vs. approximately equal to length of infraorbitals 1 + 2), and length of the coronomeckelian bone equal to 20% of the length of Meckel’s cartilage (vs. 45% of the length of Meckel’s cartilage) (Ref. 115689).

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

Main reference Upload your references | References | Coordinator : Albert, James S. | Collaborators

Peixoto, L.A.W., G.M. Dutra and W.B. Wosiacki, 2015. The electric glass knifefishes of the Eigenmannia trilineata species-group (Gymnotiformes: Sternopygidae): monophyly and description of seven new species. Zool. J. Linn. Soc. 175:384-414. (Ref. 115689)

IUCN Red List Status (Ref. 130435)

Data deficient (DD) ; Date assessed: 26 January 2021

CITES

Not Evaluated

CMS (Ref. 116361)

Not Evaluated

Threat to humans

Harmless

Human uses

FAO - Publication: search | FishSource |

More information

Countries
FAO areas
Ecosystems
Occurrences
Introductions
Stocks
Ecology
Diet
Food items
Food consumption
Ration

Common names
Synonyms
Metabolism
Predators
Ecotoxicology
Reproduction
Maturity
Spawning
Spawning aggregation
Fecundity
Eggs
Egg development

Age/Size
Growth
Length-weight
Length-length
Length-frequencies
Morphometrics
Morphology
Larvae
Larval dynamics
Recruitment
Abundance
BRUVS

References
Aquaculture
Aquaculture profile
Strains
Genetics
Electrophoreses
Heritability
Diseases
Processing
Nutrients
Mass conversion

Collaborators
Pictures
Stamps, Coins Misc.
Sounds
Ciguatera
Speed
Swim. type
Gill area
Otoliths
Brains
Vision

Tools

Special reports

Check for Aquarium maintenance | Check for Species Fact Sheets | Check for Aquaculture Fact Sheets

Download XML

Summary page | Point data | Common names | Photos

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=0.00363 (0.00172 - 0.00768), b=2.97 (2.78 - 3.16), in cm total length, based on LWR estimates for this (Sub)family-body shape (Ref. 93245).

Trophic level (Ref. 69278): 3.1 ±0.4 se; based on size and trophs of closest relatives

Fishing Vulnerability (Ref. 59153): Low vulnerability (12 of 100).

Back to Search

Random Species

Eigenmannia waiwai Peixoto, Dutra & Wosiacki, 2015