You can sponsor this page

Gymnogeophagus balzanii (Perugia, 1891)

Argentine humphead
Hochladen Photos und videos
Pictures | Google Bild
Image of Gymnogeophagus balzanii (Argentine humphead)
Gymnogeophagus balzanii
Male picture by Casacuberta, M.


Uruguay country information

Common names: Castañeta, Earth eater
Occurrence: native
Salinity: freshwater
Abundance: | Ref:
Importance: | Ref:
Aquaculture: | Ref:
Regulations: | Ref:
Uses: no uses
Comments: Known from the lower Uruguay drainage (Ref. 36377).
National Checklist:
Country Information: https://www.cia.gov/library/publications/resources/the-world-factbook/geos/uy.html
National Fisheries Authority:
Occurrences: Occurrences Point map
Main Ref: Kullander, S.O., 2003
National Database: Dinara

Common names from other countries

Klassifizierung / Names Namen | Synonyme | Catalog of Fishes(Gattung, Arten) | ITIS | CoL | WoRMS | Cloffa

> Cichliformes (Cichlids, convict blennies) > Cichlidae (Cichlids) > Geophaginae
Etymology: Gymnogeophagus: Greek, gymnos = naked + Greek, gea = the earth + Greek, phaegein, to eat (Ref. 45335).

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

; süßwasser benthopelagisch; pH range: 6.0 - 8.0; dH range: 5 - 19.   Subtropical; 22°C - 26°C (Ref. 1672)

Verbreitung Länder | FAO Gebiete | Ecosystems | Vorkommen | Point map | Einführungen | Faunafri

South America: Paraná River basin, in the Paraguay drainage in Brazil and Paraguay, the Paraná drainage in Argentina; the lower Uruguay drainage in Uruguay and Brazil.

Size / Gewicht / Alter

Maturity: Lm ?  range ? - ? cm
Max length : 12.0 cm SL Männchen/unbestimmt; (Ref. 36377)

Biologie     Fachlexikon (Englisch) (z.B. epibenthic)

Max. length 20 cm TL (Ref. 1672).

Life cycle and mating behavior Geschlechtsreife | Fortpflanzung | Ablaichen | Eier | Fecundity | Larven

Larvophile mouth brooders. Female tends the clutch. This updates previous information from Ref. 1672.

Hauptreferenz Upload your references | Referenzen | Koordinator : Kullander, Sven O. | Partner

Kullander, S.O., 2003. Cichlidae (Cichlids). p. 605-654. 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. 36377)

IUCN Rote Liste Status (Ref. 130435)

  nicht bedroht (LC) ; Date assessed: 18 November 2020

CITES (Ref. 128078)

Not Evaluated

CMS (Ref. 116361)

Not Evaluated

Bedrohung für Menschen

  Harmless




Nutzung durch Menschen

Aquarium: Kommerziell
FAO(Publication : search) | FishSource |

Mehr Information

Länder
FAO Gebiete
Ecosystems
Vorkommen
Einführungen
Stocks
Ökologie
Nahrung
Nahrungsorganismen
Nahrungsaufnahme
Nahrungsmenge
Namen
Synonyme
Metabolismus
Räuber
Ökotoxikologie
Fortpflanzung
Geschlechtsreife
Ablaichen
Fecundity
Eier
Eientwicklung
Alter/Größe
Wachstum
Länge-Gewicht
Länge-Länge
Längenhäufigkeiten
Morphometrie
Morphologie
Larven
Larven Pop.Dyn.
Rekrutierung
Dichte
Referenzen
Aquakultur
Aquakultur Profil
Zuchtlinien
Genetik
Electrophoreses
Vererbbarkeit
Krankheiten
Verarbeitung
Mass conversion
Partner
Bilder
Stamps, Coins Misc.
Laute
Ciguatera
Geschwindigkeit
Schwimmstil
Kiemenoberfläche
Otoliths
Gehirngröße
Sehfähigkeit

Tools

Zusatzinformationen

Download XML

Internet Quellen

Estimates based on models

Phylogenetic diversity index (Ref. 82804):  PD50 = 0.5005   [Uniqueness, from 0.5 = low to 2.0 = high].
Bayesian length-weight: a=0.02188 (0.01030 - 0.04649), b=3.03 (2.84 - 3.22), in cm Total Length, based on LWR estimates for this (Sub)family-body shape (Ref. 93245).
Trophic level (Ref. 69278):  3.3   ±0.5 se; based on size and trophs of closest relatives
Widerstandsfähigkeit (Ref. 120179):  mittel, Verdopplung der Population dauert 1,4 - 4,4 Jahre. (Fec=500).
Fishing Vulnerability (Ref. 59153):  Low vulnerability (10 of 100).