Peces Criollos - Freshwater Fishes of Argentina Peces Criollos - Freshwater Fishes of Argentina
English  Deutsch  Español 
 
 
 
 
 
 
 
 
 
 
 
 
 
 

Odontesthes argentinensis - first record from freshwaters in Argentina

Odontesthes argentinensis UY
Odontesthes argentinensis
(photo from Fishbase)

first record from freshwaters in Argentina:
Odontesthes argentinensis (Valenciennes, 1835)

published in:
Colautti, D., L. Miranda, M. Gonzalez-Castro, G.V. Villanova, C.A. Strüssmann, M. Mancin, T. Maiztegui, G. Berasain, R.S. Hattori, F. Grosman, P. Sanzano, I. Lozano, S. Llamazares Vegh, V. Salinas, O. Del Ponti, P. del Fresno, P. Minotti, Y. Yamamoto & C. Baigún (2019):
Evidence of a landlocked reproducing population of the marine pejerrey Odontesthes argentinensis (Actinopterygii; Atherinopsidae).
Journal of Fish Biology (accepted articles): doi: 10.1111/jfb.14207

abstract (from publication):
In South America, the order Atheriniformes includes the monophyletic genus Odontesthes with 20 species that inhabit freshwater, estuarine and coastal environments. Pejerrey Odontesthes argentinensis is widely distributed in coastal and estuarine areas of the Atlantic Ocean and is known to foray into estuaries of river systems, particularly in conditions of elevated salinity. However, to our knowledge, a landlocked self-sustaining population has never been recorded. In this study, we examined the pejerrey population of Salada de Pedro Luro Lake (south-east of Buenos Aires Province, Argentina) to clarify its taxonomic identity. An integrative taxonomic analysis based on traditional meristic, landmark-based morphometrics and genetic techniques suggests that the Salada de Pedro Luro pejerrey population represents a novel case of physiological and morphological adaptation of a marine pejerrey species to a landlocked environment and emphasises the environmental plasticity of this group of fishes.

CLOFFAR - 2nd edition

Scleronema milonga sp.nov. from Argentina

Scleronema macanuda sp.nov. from Uruguay

Scleronema teiniagua sp.nov. from Uruguay

Scleronema ibirapuita - first record from Uruguay

Scleronema minutum is a sr. synonym of Pygidium angustirostris

Scleronema operculatum - not a species from Argentina or Uruguay

CLOFFUY - update 3

Oligosarcus hepsetus - not a species from Argentina or Uruguay

Moenkhausia forestii - first record from Argentina

Moenkhausia sanctaefilomenae - not a species from Argentina

Moenkhausia australis - confirmed for Argentina

Andromakhe gen.nov. - 5 comb.nov from Astyanax

Psalidodon - 30 comb.nov. from Astyanax

Psalidodon anisitsi comb.nov. from Hyphessobrycon

 Powered by ReadSys