Gymnogeophagus jaryi AlonsoTeránAguileraŘíčanCasciottaSerraAlmirónBenítez et al., 2019
Envoyez vos Photos et vidéos
Images Google
No image available for this species;
drawing shows typical species in Cichlidae.
Images Google
drawing shows typical species in Cichlidae.
Classification / Noms Noms communs | Synonymes | Catalog of Fishes(Genre, Espèce) | 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); jaryi: Name derived from the Guaraní word 'jarýi' meaning grandmother, and it is dedicated to the Non-Governmental Organization of 'Abuelas de Plaza de Mayo' whose objective is to locate and restore to their legitimate families all the children who disappeared during the last Argentine dictatorship; noun in apposition.
Etymology: Gymnogeophagus: Greek, gymnos = naked + Greek, gea = the earth + Greek, phaegein, to eat (Ref. 45335); jaryi: Name derived from the Guaraní word 'jarýi' meaning grandmother, and it is dedicated to the Non-Governmental Organization of 'Abuelas de Plaza de Mayo' whose objective is to locate and restore to their legitimate families all the children who disappeared during the last Argentine dictatorship; noun in apposition.
Taxonomic Remarks
Entered from e-publication.
Environnement : milieu / zone climatique / profondeur / gamme de distribution Écologie
; eau douce benthopélagique. Tropical
Distribution Territoires | Zones FAO | Écosystèmes | Occurrences | Carte par point | Introductions | Faunafri
South America: Argentina and Paraguay.
Taille / Poids / Âge
Description synthétique Clés d'identification | Morphologie | Morphométrie
Épines dorsales (Total) : 13 - 14; Rayons mous dorsaux (Total) : 10 - 11; Épines anales: 3; Rayons mous anaux: 8 - 9. This species is distinguished from all its congeners except G. australis and G. caaguazuensis, by the presence of a hyaline to grey anterior portion of the dorsal fin; differs from caaguazuensis by having a longer caudal peduncle, caudal fin not lyrate, central portion of scales on dorsal part of trunk light iridescent blue and white spots in soft portion of dorsal fin in adult males; differs from australis by the light iridescent blue coloration of central area of scales on the dorsal portion of trunk and tail, and by the absence of scales on the soft portion of the dorsal fin. It is further distinguished by the following unique set of characters: D 10-11 branched rays; 27-30 E1 scales; absence of lips thickening; adult males with a hump, with large white spots forming transversal stripes distally and in anterior area of the dorsal fin’s soft portion, absence of a conspicuous and oblique dark band from the eye to the anterior border of the head, anterior part of dorsal fin hyaline to grey, scales of the midlateral spot each bearing a semicircular light blue blotch, the head hump start at the horizontal through the eyes, concave anterior profile in lateral view, base of unpaired fins yellow, and whitish hyaline spots on caudal fin (Ref. 119666).
Cross section: compressed.
Cross section: compressed.
Inhabits streams with sandy and rocky bottom and abundant marginal vegetation. The climate where it is found, on the mountain ridge in Aristóbulo del Valle, is classified as warm and temperate. In this area there is a significant rainfall throughout the year (average per year is 1,678 mm), and even in August with the lowest precipitation, it still has a considerable amount of rain (111 mm). The lowest precipitation occur from July to September, the driest period and lowest water levels from December to February due to the marked seasonal change in temperature, and peaks in precipitation occur from May and October. The annual average temperature is 19.1°C, with 23.9ºC monthly average temperature in January and 14.3ºC in June. Water level in the stream can have important changes: water turbidity is variable among the year with peaks of turbidity after rains and increases in water visibility the rest of the year. Specimens are frequently collected in the rocky areas or associated with marsh and marginal vegetation. The holotype was collected together with the female paratype under the marginal vegetation and with fry on November 2016 (Ref. 119666).
Cycle de vie et comportement reproducteur Maturité | Reproduction | Frai | Œufs | Fécondité | Larves
Référence principale
Téléchargez vos références | Références | Coordinateur : Kullander, Sven O. | Collaborateurs
Alonso, F., G.E. Terán, G. Aguilera, O. Rican, J. Casciotta, W.S. Serra, A. Almirón, M.F. Benítez, I. García and J.M. Mirande, 2019. Description of a new species of the Neotropical cichlid genus Gymnogeophagus Miranda Ribeiro, 1918 (Teleostei: Cichliformes) from the Middle Parana´ basin, Misiones, Argentina. PLoS ONE 14(2):e0210166. (Ref. 119666)
Statut dans la liste rouge de l'IUCN (Ref. 130435: Version 2025-2 (Global))
Menacé (EN) (B1ab(iii)); Date assessed: 16 December 2020
CITES
Not Evaluated
Menace pour l'homme
Harmless
Utilisations par l'homme
Pêcheries: sans intérêt
FAO - Publication: search | FishSource |
Plus d'informations
Écologie trophique
Aliments (proies)
Composition du régime alimentaire
Consommation alimentaire
Rations alimentaires
Prédateurs
Aliments (proies)
Composition du régime alimentaire
Consommation alimentaire
Rations alimentaires
Prédateurs
Écologie
Écologie
Écologie
Dynamique des populations
Paramètres de croissance
Âges / tailles maximales
Longueur-poids rel.
Rel. longueur-longueur.
Fréquences de longueurs
Conversion de masse
Recrutement
Abondance
Paramètres de croissance
Âges / tailles maximales
Longueur-poids rel.
Rel. longueur-longueur.
Fréquences de longueurs
Conversion de masse
Recrutement
Abondance
Cycle de vie
Reproduction
Maturité
Maturité/épines rel.
Fécondité
Frai
Agrégats de frai
Œufs
Développement de l'œuf
Larves
Dynamique des populations larvaires
Reproduction
Maturité
Maturité/épines rel.
Fécondité
Frai
Agrégats de frai
Œufs
Développement de l'œuf
Larves
Dynamique des populations larvaires
Anatomie
Surface branchiale
Cerveau
Otolithe
Surface branchiale
Cerveau
Otolithe
Physiologie
Composition corporelle
Nutriments
Consommation d'oxygène
Type de natation
Vitesse de nage
Pigments visuels
Son de poisson
Maladies et parasites
Toxicité (CL50)
Composition corporelle
Nutriments
Consommation d'oxygène
Type de natation
Vitesse de nage
Pigments visuels
Son de poisson
Maladies et parasites
Toxicité (CL50)
Génétique
génôme
Génétique
Hétérozygotie
Héritabilité
Diversité génétique
génôme
Génétique
Hétérozygotie
Héritabilité
Diversité génétique
Liées à l'homme
Systèmes d'aquaculture
Profils d'aquaculture
Souches
Cas de ciguatera
Timbres, pièces de monnaie, divers
Systèmes d'aquaculture
Profils d'aquaculture
Souches
Cas de ciguatera
Timbres, pièces de monnaie, divers
Outils
E-book | Guide de terrain | Générateur de fréquences de longueur | Outil de dynamique de population | Carte par point |
Capture-MSY |
Articles particuliers
Télécharger en XML
Sources Internet
AFORO (otoliths) | Aquatic Commons | BHL | Cloffa | Websites from users | FishWatcher | CISTI | Catalog of Fishes: Genre, Espèce | 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 | Arbre de Vie | Wikipedia: aller à, chercher | World Records Freshwater Fishing | Zoobank | Zoological Record
Estimations basées sur des modèles
|
Indice de diversité phylogénétique (Réf. 82804) |
PD50 = 0.5000 [Uniqueness, from 0.5 = low to 2.0 = high]. |
| Bayesian length-weight | a=0.01995 (0.00922 - 0.04317), b=3.01 (2.83 - 3.19), in cm total length, based on LWR estimates for this (Sub)family-body shape (Ref. 93245). |
|
Niveau trophique (Réf. 69278) |
3.4 ±0.5 se; based on size and trophs of closest relatives |
|
Résilience (Réf. 120179) |
Haut, temps minimum de doublement de population inférieur à 15 mois (Preliminary K or Fecundity.). |
|
Vulnérabilité de la pêche (Ref. 59153) |
Low vulnerability (20 of 100). 🛈 |