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Pseudanos gracilis
Picture by JJPhoto
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Picture by JJPhoto
Classification / Names Common names | Synonyms | Catalog of Fishes(genus, species) | ITIS | CoL | WoRMS | Cloffa
Teleostei (teleosts) > Characiformes (Characins) > Anostomidae (Headstanders) > Anostominae
Etymology: Pseudanos: Derived from Greek, pseudes = false (Ref. 45335).
More on author: Kner.
Etymology: Pseudanos: Derived from Greek, pseudes = false (Ref. 45335).
More on author: Kner.
Environment: milieu / climate zone / depth range / distribution range Ecology
Freshwater; benthopelagic; pH range: ? - 7.0; dH range: 2 - 8; depth range 0 - 1 m (Ref. 2060). Tropical; 24°C - 26°C (Ref. 2060)
Distribution Territories | FAO areas | Ecosystems | Occurrences | Point map | Introductions | Faunafri
South America: Guaporé, Negro and Orinoco River basins.
Size / Weight / Age
Maturity: Lm ? range ? - ? cm
Max length : 18.1 cm SL male/unsexed; (Ref. 91907); common length : 14.0 cm TL male/unsexed; (Ref. 2060)
Max length : 18.1 cm SL male/unsexed; (Ref. 91907); common length : 14.0 cm TL male/unsexed; (Ref. 2060)
Short description Identification keys | Morphology | Morphometrics
Dorsal soft rays (total): 12; Anal soft rays: 11 - 12. Can be diagnosed by having the following characters: four branchiostegal rays; dark spots absent on the center of each body scale; and angle of the dorsal and ventralmost radii of body scales between 110° and 180° (Ref. 91907).
Body shape (shape guide): fusiform / normal.
Body shape (shape guide): fusiform / normal.
Adults are found in crevices in fast-flowing creeks (Ref. 598). Distinct pairs breed on densely grown weedy places (Ref. 205).
Life cycle and mating behavior Maturity | Reproduction | Spawning | Eggs | Fecundity | Larvae
Distinct pairs breed on densely grown weedy places (Ref. 205).
Main reference
Upload your references | References | Coordinator : Garavello, Júlio | Collaborators
Géry, J., 1977. Characoids of the world. Neptune City ; Reigate : T.F.H. [etc.]; 672 p. : ill. (chiefly col.) ; 23 cm. (Ref. 598)
IUCN Red List Status (Ref. 130435: Version 2025-2 (Global))
Least Concern (LC) ; Date assessed: 26 June 2020
CITES
Not Evaluated
Threat to humans
Harmless
Human uses
Fisheries: commercial; aquarium: commercial
FAO - Publication: search | FishSource |
More information
Trophic ecology
Food items (preys)
Diet composition
Food consumption
Food rations
Predators
Food items (preys)
Diet composition
Food consumption
Food rations
Predators
Ecology
Ecology
Ecology
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)
Genetics
Genome
Genetics
Heterozygosity
Heritability
Genetic Diversity
Genome
Genetics
Heterozygosity
Heritability
Genetic Diversity
Human related
Aquaculture systems
Aquaculture profiles
Strains
Ciguatera cases
Stamps, coins, misc.
Aquaculture systems
Aquaculture profiles
Strains
Ciguatera cases
Stamps, coins, misc.
Tools
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 | PubMed | Reef Life Survey | Socotra Atlas | TreeBase | Tree of Life | Wikipedia: Go, Search | World Records Freshwater Fishing | Zoological Record
Estimates based on models
|
Phylogenetic diversity index (Ref. 82804) |
PD50 = 0.5312 [Uniqueness, from 0.5 = low to 2.0 = high]. |
| Bayesian length-weight | a=0.01072 (0.00419 - 0.02740), b=3.04 (2.82 - 3.26), in cm total length, based on LWR estimates for this (Sub)family-body shape (Ref. 93245). |
|
Trophic level (Ref. 69278) |
2.4 ±0.2 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 to moderate vulnerability (30 of 100). 🛈 |
|
Price category (Ref. 80766) |
Unknown. |