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

Teleostei (teleosts) > Characiformes (Characins) > Anostomidae (Headstanders)
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 Countries | FAO areas | Ecosystems | Occurrences | Point map | Introductions | Faunafri

South America: Guaporé, Negro and Orinoco River basins.

Size / Weight / Age

Maturity: L_m ? range ? - ? cm
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).

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 Maturities | Reproduction | Spawnings | Egg(s) | Fecundities | 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)

Least Concern (LC) ; Date assessed: 26 June 2020

CITES

Not Evaluated

CMS (Ref. 116361)

Not Evaluated

Threat to humans

Harmless

Human uses

Fisheries: commercial; aquarium: commercial

FAO - Publication: search | FishSource |

More information

Trophic ecology
Food items
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Ecology
Ecology

Population dynamics
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Length-weight rel.
Length-length rel.
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Life cycle
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Egg(s)
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Distribution
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Anatomy
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Physiology
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Visual pigment(s)
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Diseases / Parasites
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Genetics
Genetics
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Internet sources

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=0.01096 (0.00533 - 0.02257), b=3.06 (2.89 - 3.23), in cm total length, based on LWR estimates for this (Sub)family-body shape (Ref. 93245).

Trophic level (Ref. 69278): 2.4 ±0.1 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 vulnerability (12 of 100).

Price category (Ref. 80766): Unknown.

Pseudanos gracilis (Kner, 1858)