Brazil country information

Common names: [No common name]
Occurrence: native
Salinity: freshwater
Abundance: | Ref:
Importance: | Ref:
Aquaculture: | Ref:
Regulations: | Ref:
Uses: live export: yes;
Comments: Recorded from the state of Rio de Janeiro ( Perequê-Açu and Taquari river basins) (Ref. 50588). Type locality: Rio de Janeiro: Parati: rio Carrasquinho below the Cachoeira do Tobogã, upper Perequê-Açu basin, Penha, ca. 7.5 km west of highway BR 101, on road from Parati to Cunha (Ref. 50588).
National Checklist:
Country Information: https://www.cia.gov/library/publications/resources/the-world-factbook/geos/br.html
National Fisheries Authority:
Occurrences: Occurrences Point map
Main Ref: Pereira, E.H.L., R.E. Reis, P.F.M. Souza and H. Lazzarotto, 2003
National Database:

Common names from other countries

... more

Classification / Names Populärnamn | synonymer | Catalog of Fishes(Släkte, Arter) | ITIS | CoL | WoRMS | Cloffa

> Siluriformes (Catfishes) > Loricariidae (Armored catfishes) > Delturinae
Etymology: Hemipsilichthys: Greek, hemi = half + Greek, psilos = hairless + Greek, ichtys = fish (Ref. 45335); nimius: From the Latin nimius meaning nimiety, in allusion to the supernumerary rays of the dorsal fin, which has nine branched rays (Ref. 50588).
More on authors: Pereira, Reis, Souza & Lazzarotto.

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

; sötvatten bottenlevande. High altitude

Utbredning Länder | FAO områden | Ekosystem | Förekomster | Point map | Utplanteringar | Faunafri

South America: Perequê-Açu and Taquari river basins, southeastern Brazil. Collected in localities between 100 and 370 m above sea level.

Size / Vikt / Age

Maturity: L_m ? range ? - ? cm
Max length : 10.5 cm SL hane/ej könsbestämd; (Ref. 50588)

Short description Bestämningsnycklar | Morfologi | Morfometri

Taggstrålar i ryggfenan (totalt) : 0; Mjukstrålar i ryggfenan (totalt) : 7 - 9; Taggstrålar i analfenan: 0; Mjukstrålar i analfenan: 6. Eight (rarely 7 or 9) branched rays in the dorsal fin; dorsal-fin membrane expanded posteriorly, connecting proximal half of the last dorsal-fin ray to the dorsum; teeth cusps equal in size (Ref. 50588).

Type specimens were collected in small coastal streams flowing through well-preserved Atlantic forest; in localities between 100 and 370 m a.s.l., always in rocky substrate with fast flowing, clear water, under direct sunlight, and depths between 10 and 50 cm. Underwater observations indicate that this species is most active during the night, grazing on the bottom (Ref. 57859).

Life cycle and mating behavior Maturities | Reproduktion | Spawnings | Egg(s) | Fecundities | Larver

Main reference Upload your references | referenser | Koordinator : Fisch-Muller, Sonia | Medarbetare

Pereira, E.H.L., R.E. Reis, P.F.M. Souza and H. Lazzarotto, 2003. A new species of the loricariid catfish genus Hemipsilichthys from southern Rio de Janeiro coastal rivers, southeastern Brazil. Zootaxa 285:1-10. (Ref. 50588)

IUCN Red List Status (Ref. 130435)

Near Threatened (NT) (B2b(iii)); Date assessed: 07 November 2018

CITES (Ref. 128078)

Not Evaluated

CMS (Ref. 116361)

Not Evaluated

Threat to humans

Harmless

Human uses

FAO(Publication : search) | FishSource |

Ytterligare information

Trophic ecology
Födoslag
Diet compositions
Food consumptions
Food rations
Predatorer

Ecology
Ekologi
Home ranges

Population dynamics
Growths
Max. ages / sizes
Length-weight rel.
Length-length rel.
Length-frequencies
Mass conversions
Recruitments
Abundances

Life cycle
Reproduktion
Maturities
Fecundities
Spawnings
Spawning aggregations
Egg(s)
Egg developments
Larver
Larvdynamik

Distribution
Länder
FAO områden
Ekosystem
Förekomster
Utplanteringar
BRUVS - Videos

Anatomy
Gill areas
Hjärnstorlek
Otoliths

Physiology
Body compositions
Nutrients
Oxygen consumptions
Swimming type
Swimming speeds
Visual pigment(s)
Fiskljud
Diseases / Parasites
Toxicities (LC50s)

Genetics
Genetik
Electrophoreses
Heritabilities

Human related
Aquaculture systems
Vattenbruksprofiler
Avelslinjer
Ciguatera cases
Stamps, coins, misc.

Outreach
Medarbetare

Taxonomy
Populärnamn
synonymer
Morfologi
Morfometri
Bilder

References
referenser

Verktyg

Special reports

Check for Aquarium maintenance | Check for Species Fact Sheets | Check for Aquaculture Fact Sheets

Download XML

Summary page | Point data | Populärnamn | Photos

Internet-källor

Estimates based on models

Phylogenetic diversity index (Ref. 82804): PD₅₀ = 0.6250 [Uniqueness, from 0.5 = low to 2.0 = high].

Bayesian length-weight: a=0.00550 (0.00206 - 0.01463), b=3.12 (2.89 - 3.35), in cm Total Length, based on LWR estimates for this (Sub)family-body shape (Ref. 93245).

Resiliens (Ref. 120179): Hög, lägsta populationsfördubblingstid mindre än 15 månader (Preliminary K or Fecundity.).

Fishing Vulnerability (Ref. 59153): Low vulnerability (10 of 100).

Hemipsilichthys nimius Pereira, Reis, Souza & Lazzarotto, 2003