Results 1 to 10 of about 3,959 (200)

Diagnostic locus for identification of silverside hybrids (Odontesthes humensis and Odontesthes bonariensis) in a natural population

open access: yesBoletim do Instituto de Pesca, 2022
Hybridization is a natural phenomenon that occurs more often in fish than in other vertebrates. The use of nuclear and mitochondrial molecular markers provides valuable results in the detection of these events.
Daiane Machado Souza   +3 more
doaj   +3 more sources

Pisces, Atheriniformes, Atherinopsidae, Odontesthes perugiae Evermann and Kendall, 1906: distribution extension, new records and geographic distribution map for the species [PDF]

open access: yesCheck List, 2010
In this work, we report the presence of Odontesthes perugiae from the Camba Cué lagoon, in the Apipé Island, upper Paraná River. This distribution is the northernmost one for the species.
Mariela Cuello   +2 more
doaj   +4 more sources

Identificação de loci microssatélitescom potencial de amplificação na espécie de Peixe-Rei (Odontesthes humensis)

open access: yesArquivo Brasileiro de Medicina Veterinária e Zootecnia, 2014
In this work, 25,806 potentially amplifiable microsatellite loci (PAL) were identified in pejerrey, (Odontesthes humensis), with 21% of dinucleotide, 22% trinucleotide, 37% tetranucleotide, 13% pentanucleotide and 7% hexanucleotide.
R.A. Tavares   +9 more
doaj   +7 more sources

Shearing Tooth Morphology May Allow Sharks to Access Higher Trophic Levels at Smaller Sizes. [PDF]

open access: yesEcol Evol
Predator morphology imposes limitations on prey selection due to biomechanical constraints, making some prey functionally inaccessible and thereby constraining predator trophic niches. We assessed how two key components of trophic morphology—tooth shape and body size—affect prey selectivity and trophic niche in two sympatric sharks with contrasting ...
Riverón S   +7 more
europepmc   +2 more sources

Tolerancia in vitro de Fusarium solani y Fusarium semitectum (anamorfos, Ascomycota) a la exposición a desinfectantes de superficie utilizados en acuicultura In vitro tolerance of Fusarium semitectum and Fusarium solani (anamorphic, Ascomycota) ... [PDF]

open access: yesBoletín de la Sociedad Argentina de Botánica, 2013
Summary: In vitro tolerance of Fusarium semitectum and Fusarium solani (anamorphic, Ascomycota) exposed to surface disinfectant commonly used in aquaculture.
Suani G. Pacheco Marino   +2 more
doaj   +3 more sources

Macroparasites of silversides (Atherinopsidae: Odontesthes) in Argentina

open access: yesRevista Mexicana de Biodiversidad, 2016
This study presents new geographical distribution records for the macroparasites of the marine Odontesthes nigricans (Richardson, 1848) (89 wild specimens), and for the freshwater silversides Odontesthes bonariensis (Valenciennes, 1835) (43 wild and 108 ...
Verónica Flores   +5 more
doaj   +4 more sources

Diets of Three Sympatric Grebe Species in Lake Titicaca Indicate Possible Dietary Niche Partitioning. [PDF]

open access: yesEcol Evol
Lake Titicaca is home to three grebe species whose diets have not been thoroughly studied. In this natural history note, we provide the first description of the diets of these species and how they overlap and differentiate. ABSTRACT Dietary niche partitioning is a fundamental process in community ecology, of interest to both conservationists and ...
Villar DA   +3 more
europepmc   +2 more sources

Cross-amplification of microsatellites from the Atherinopsidae Odontesthes perugiae and Odontesthes argentinensis to Chilean silversides of the genus Odontesthes and Basilichthys Amplificación cruzada de microsatélites de los Atherinopsidae Odontesthes perugiae y Odontesthes argentinensis en pejerreyes chilenos del género Odontesthes y Basilichthys

open access: yesGayana, 2011
We tested the amplification potential of 8 microsatellites initially described for Odontesthes perugiae and O. argentinensis in 3 species of Odontesthes and 4 species of Basilichthys.
Pablo Muñoz   +3 more
doaj   +1 more source

Efeito de diferentes concentrações de salinas (NaCl) na sobrevivência de embriões de peixe – rei Odontesthes bonariensis e Odontesthes humensis

open access: yesBiotemas, 2009
Embriões de Odontesthes bonariensis e Odontesthes humensis com oito dias após fertilização, foram submetidos a diferentes concentrações salinas (NaCl): 0, 5, 10, 20 e 30g.L-1.
Sérgio Renato Noguez Piedras   +3 more
doaj   +4 more sources

A Pleistocene freshwater ichthyofaunal assemblage from central Argentina: What kind of fishes lived in the Pampean lagoons before the extinction of the megafauna? [PDF]

open access: yesPLoS ONE, 2020
This study contributes to the knowledge of continental fishes recovered from sedimentary successions corresponding to the Bonaerean Stage/Age (late mid-Pleistocene) in the locality of Centinela del Mar, General Alvarado County, Buenos Aires province ...
Sergio Bogan   +4 more
doaj   +2 more sources

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