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Teleostei (teleosts) > Characiformes (Characins) > Anostomidae (Headstanders)
Eponymy: Nathaniel Thayer Jr (1808–1883) was an American philanthropist and financier. [...] (Ref. 128868), visit book page.
More on author: Borodin.

Issue
This species is placed in the genus Leporinus in Eschmeyer (CofF ver. Mar. 2011: Ref. 86697).

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

Freshwater; benthopelagic. Tropical

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

South America: Paraíba do Sul, Doce and Itapemirim rivers in Brazil.

Size / Weight / Age

Maturity: L_m ? range ? - ? cm

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

Sidlauskas, B.L. and R.P. Vari, 2008. Phylogenetic relationships within th South American fish family Anostomidae (Teleostei: Ostariophysi: Characiformes). Zool. J. Linn. Soc. 154(1):70-210. (Ref. 78750)

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

Vulnerable (VU) (B1ab(iii)); Date assessed: 16 May 2022

CITES

Not Evaluated

CMS (Ref. 116361)

Not Evaluated

Threat to humans

Harmless

Human uses

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
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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
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Taxonomy
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Synonyms
Morphology
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References
References

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Summary page | Point data | Common names | Photos

Internet sources

Estimates based on models

Phylogenetic diversity index (Ref. 82804): PD₅₀ = 0.5078 [Uniqueness, from 0.5 = low to 2.0 = high].

Bayesian length-weight: a=0.01047 (0.00456 - 0.02402), b=3.05 (2.85 - 3.25), 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): Medium, minimum population doubling time 1.4 - 4.4 years (Preliminary K or Fecundity.).

Fishing Vulnerability (Ref. 59153): Low vulnerability (17 of 100).

Hypomasticus thayeri (Borodin, 1929)