Nannostomus eques Steindachner, 1876
Brown pencilfish
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Nannostomus eques
Picture by Muséum-Aquarium de Nancy/D. Terver
Pictures | Stamps, coins, misc. | Google image
Picture by Muséum-Aquarium de Nancy/D. Terver
Classification / Names Common names | Synonyms | Catalog of Fishes(genus, species) | ITIS | CoL | WoRMS | Cloffa
Teleostei (teleosts) > Characiformes (Characins) > Lebiasinidae (Pencilfishes) > Pyrrhulininae
Etymology: Nannostomus: Latin, nannus = small + Greek, stoma = mouth (Ref. 45335).
More on author: Steindachner.
Etymology: Nannostomus: Latin, nannus = small + Greek, stoma = mouth (Ref. 45335).
More on author: Steindachner.
Taxonomic Remarks
The most recent reference to distribution is by Weitzman & Weitzman (1982), but due to a printer’s error Fig. 22.12 provides the correct distribution for Nannostomus eques, not Fig. 22.13. The most recent systematic description by Weitzman (1966). This species is commonly exported as an aquarium fish from Brazil, Peru and Guyana. Most recent systematic description is by Weitzman (1966). Commonly exported as an aquarium fish since 1910, Stansch (1914).
Environment: milieu / climate zone / depth range / distribution range Ecology
Freshwater; benthopelagic; pH range: 5.0 - 6.0; dH range: 5 - 12. Tropical; 23°C - 28°C (Ref. 1672)
Distribution Territories | FAO areas | Ecosystems | Occurrences | Point map | Introductions | Faunafri
South America: central and upper Amazon.
Size / Weight / Age
Feeds on worms, crustaceans and insects (Ref. 7020). Oviparous (Ref. 205). Aquarium keeping: in groups of 5 or more individuals; minimum aquarium size 60 cm (Ref. 51539).
Life cycle and mating behavior Maturity | Reproduction | Spawning | Eggs | Fecundity | Larvae
Main reference
Upload your references | References | Coordinator : Weitzman, Marilyn | Collaborators
Weitzman, M. and S.H. Weitzman, 2003. Lebiasinidae (Pencil fishes). p. 241-251. In R.E. Reis, S.O. Kullander and C.J. Ferraris, Jr. (eds.) Checklist of the Freshwater Fishes of South and Central America. Porto Alegre: EDIPUCRS, Brasil. (Ref. 37104)
IUCN Red List Status (Ref. 130435: Version 2025-2 (Global))
Least Concern (LC) ; Date assessed: 21 September 2020
CITES
Not Evaluated
Threat to humans
Harmless
Human uses
Fisheries: commercial; aquarium: commercial
FAO - Publication: search | FishSource |
More information
Population dynamics
Growth parameters
Max. ages / sizes
Length-weight rel.
Length-length rel.
Length-frequencies
Mass conversion
Recruitment
Abundance
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
Reproduction
Maturity
Maturity/Gills rel.
Fecundity
Spawning
Spawning aggregations
Eggs
Egg development
Larvae
Larval dynamics
Anatomy
Gill area
Brain
Otolith
Gill area
Brain
Otolith
Physiology
Body composition
Nutrients
Oxygen consumption
Swimming type
Swimming speed
Visual pigments
Fish sound
Diseases & Parasites
Toxicity (LC50s)
Body composition
Nutrients
Oxygen consumption
Swimming type
Swimming speed
Visual pigments
Fish sound
Diseases & Parasites
Toxicity (LC50s)
Tools
Bio-Quiz | E-book | Field guide | Length-frequency wizard | Life-history tool | Point map |
Catch-MSY |
Special reports
Download XML
Internet sources
AFORO (otoliths) | Aquatic Commons | BHL | Cloffa | Websites from users | Check FishWatcher | CISTI | Catalog of Fishes: genus, species | DiscoverLife | ECOTOX | FAO - Publication: search | Faunafri | Fishipedia | Fishtrace | GloBI | Google Books | Google Scholar | Google | IGFA World Record | OneZoom | Open Tree of Life | Otolith Atlas of Taiwan Fishes | Public aquariums | PubMed | Reef Life Survey | Socotra Atlas | TreeBase | Tree of Life | Wikipedia: Go, Search | World Records Freshwater Fishing | Zoobank | Zoological Record
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=0.00759 (0.00389 - 0.01479), b=3.13 (2.96 - 3.30), in cm total length, based on LWR estimates for this species & (Sub)family-body (Ref. 93245). |
|
Trophic level (Ref. 69278) |
3.3 ±0.40 se; based on food items. |
|
Resilience (Ref. 120179) |
Medium, minimum population doubling time 1.4 - 4.4 years (tm = 2). |
|
Fishing Vulnerability (Ref. 59153) |
Low vulnerability (10 of 100). 🛈 |
|
Price category (Ref. 80766) |
Unknown. |