This website uses cookies to enhance your browsing experience and ensure the functionality of our site. For more detailed information about the types of cookies we use and how we protect your privacy, please visit our Privacy Information page.

×

Cookie Settings

This website uses different types of cookies to enhance your experience. Please select your preferences below:

Nannaethiops unitaeniatus, Oneline tetra : aquarium

You can sponsor this page

Common name (e.g. trout)

Genus + Species (e.g. Gadus morhua)

  • Back to search
  • About this page
    • More Info
    • Plus d'info
    • Mais info
  • Languages
    • Arabic
    • Bahasa/Malay
    • Bangla
    • Chinese(Si)
    • Chinese(Tr)
    • Deutsch
    • English
    • Español
    • Farsi
    • Français
    • Greek
    • Hindi
    • Italiano
    • Japanese
    • Lao
    • Nederlands
    • Português(Br)
    • Português(Pt)
    • Russian
    • Swedish
    • Thai
    • Vietnamese
  • User feedbacks
    • Comments &
        Corrections
    • Fish Forum
    • Guest Book
    • Facebook
  • Citation
  • Uploads
    • Attach website
    • Upload photo
    • Upload video
    • Upload
        references
    • Fish Watcher
  • Related species
    • Species in
        Nannaethiops
    • Species in
        Distichodontidae
    • - Classification -
    • Distichodontidae
    • Characiformes
    • Teleostei
    • Chordata
    • Animalia
  • Search

Nannaethiops unitaeniatus Günther, 1872

Oneline tetra
Upload your photos and videos
 Pictures | Stamps, coins, misc. | Google image
Image of Nannaethiops unitaeniatus (Oneline tetra)
Nannaethiops unitaeniatus
Male picture by Mody, K.

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

Teleostei (teleosts) > Characiformes (Characins) > Distichodontidae (Distichodus)
Etymology: Nannaethiops: Latin, nannus = small + Aethiops, with appearance of being from Aethiopia, the nord east African region (Ref. 45335).
More on author: Günther.

Issue
Type species of genus (monotypic) (Ref. 81638).

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

Freshwater; pelagic; pH range: 6.5 - 7.5; dH range: ? - 12. Tropical; 23°C - 26°C (Ref. 1672)

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

Africa: Niger and Cross River in Nigeria (Ref. 2936, 31256, 86396) and Chad basin (Ref. 367, 86396). Found in Cameroon, Gabon, Equatorial Guinea, DRCongo, Republic of Congo, Cabinda (Ref. 81638). Also reported from Ghana (Ref. 11235) and the lower part of the Congo basin (Ref. 2936, 94734). Reports from other parts of the Congo basin (Ref. 1878, 1879, 41591, 46861) need confirmation.

Size / Weight / Age

Maturity: Lm ?  range ? - ? cm
Max length : 6.2 cm TL male/unsexed; (Ref. 2936)

Short description Identification keys | Morphology | Morphometrics

Dorsal spines (total): 0; Dorsal soft rays (total): 12 - 14; Anal spines: 0; Anal soft rays: 9 - 11. Diagnosis: distinguished from Neolebias by its always complete lateral line; caudal peduncle 1-1.5x longer that high (Ref. 2936, 86396). 32-36 scales in a longitudinal series (Ref. 81638, 86396). Four, rarely 5, scales between dorsal fin origin and lateral line (Ref. 81638). 11-16 (Ref. 86396) or 12-14 (Ref. 81638) total dorsal fin rays. 10 (Ref. 86396) or 9-11 (Ref. 81638) total anal fin rays.

Biology     Glossary (e.g. epibenthic)

Distinguished from Neolebias by its always complete lateral line (Ref. 2936). Feeds on worms, crustaceans and insects (Ref. 7020).

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

Main reference Upload your references | References | Coordinator | Collaborators

Gosse, J.-P. and E.J. Coenen, 1990. Distichodontidae. p. 237-260. In C. Lévêque, D. Paugy and G.G. Teugels (eds.) Faune des poissons d'eaux douces et saumâtres de l'Afrique de l'Ouest. Tome I. Coll. Faune Tropicale n° XXVIII. Musée Royal de l'Afrique Centrale, Tervuren and O.R.S.T.O.M., Paris, 384 p. (Ref. 2936)

IUCN Red List Status (Ref. 130435: Version 2024-2)

  Least Concern (LC) ; Date assessed: 11 May 2019

CITES

Not Evaluated

CMS (Ref. 116361)

Not Evaluated

Threat to humans

  Harmless





Human uses

Aquarium: commercial
FAO - Publication: search | FishSource |

More information

Trophic ecology
Food items
Diet composition
Food consumption
Food rations
Predators
Ecology
Ecology
Population dynamics
Growth parameters
Max. ages / sizes
Length-weight rel.
Length-length rel.
Length-frequencies
Mass conversion
Recruitment
Abundance
Life cycle
Reproduction
Maturity
Maturity/Gills rel.
Fecundity
Spawning
Spawning aggregations
Eggs
Egg development
Larvae
Larval dynamics
Distribution
Countries
FAO areas
Ecosystems
Occurrences
Introductions
BRUVS - Videos
Anatomy
Gill area
Brain
Otolith
Physiology
Body composition
Nutrients
Oxygen consumption
Swimming type
Swimming speed
Visual pigments
Fish sound
Diseases & Parasites
Toxicity (LC50s)
Genetics
Genetics
Heterozygosity
Heritability
Human related
Aquaculture systems
Aquaculture profiles
Strains
Ciguatera cases
Stamps, coins, misc.
Outreach
Collaborators
Taxonomy
Common names
Synonyms
Morphology
Morphometrics
Pictures
References
References

Tools

Bio-Quiz | E-book | Field guide | Identification keys | Length-frequency wizard | Life-history tool | Point map | Classification Tree | Catch-MSY |

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

AFORO (otoliths) | Aquatic Commons | BHL | Cloffa | BOLDSystems | Websites from users | Check FishWatcher | CISTI | Catalog of Fishes: genus, species | DiscoverLife | ECOTOX | FAO - Publication: search | Faunafri | Fishipedia | Fishtrace | GenBank: genome, nucleotide | GloBI | Google Books | Google Scholar | Google | IGFA World Record | MitoFish | Otolith Atlas of Taiwan Fishes | PubMed | Reef Life Survey | Socotra Atlas | Tree of Life | Wikipedia: Go, Search | World Records Freshwater Fishing | Zoobank | Zoological Record

Estimates based on models

Phylogenetic diversity index (Ref. 82804):  PD50 = 0.7500   [Uniqueness, from 0.5 = low to 2.0 = high].
Bayesian length-weight: a=0.01230 (0.00606 - 0.02499), b=2.87 (2.69 - 3.05), in cm total length, based on LWR estimates for this species & (Sub)family-body (Ref. 93245).
Trophic level (Ref. 69278):  3.0   ±0.37 se; based on food items.
Fishing Vulnerability (Ref. 59153):  Low vulnerability (10 of 100).

Random Species
Back to Search
Comments & Corrections
Back to Top

Accessed through: Not available
FishBase mirror site : Laguna, Philippines
Page last modified by : mrius-barile - 20 July 2016
Total processing time for the page : 3.7119 seconds