Results 101 to 110 of about 14,954 (263)

Prevalence and intensity of black-spot disease in fish community from a subtropical stream (Santa Lucía river basin, Uruguay) [PDF]

open access: yes, 2008
The objective of the present study was to identify fish species susceptible to black spot disease, the temporal variation in intensity prevalence and abundance of black spot, and its correlation with environmental and host parameters.
Eguren, Gabriela   +1 more
core  

Análise da variação ontogenética da assinatura isotópica de Cyanocharax alburnus (Teleostei, Characiformes) [PDF]

open access: yes, 2011
A análise de isótopos estáveis está sendo cada vez mais utilizadas para o entendimento da real assimilação de nutrientes e da posição trófica de organismos.
Batista, Cibele Boeira
core  

Implications of differences between temperate and tropical freshwater ecosystems for the ecological risk assessment of pesticides [PDF]

open access: yes
Despite considerable increased pesticide use over the past decades, little research has been done into their fate and effects in surface waters in tropical regions.
Brink, P.J., van den, Daam, M.A.
core   +2 more sources

Histologia e Citologia [PDF]

open access: yes, 2018
XXXII Congresso Brasileiro de Zoologia, Foz do Iguaçu, 2018. Tema: Desafios e perspectivas para a Zoologia na América LatinaCaderno de Resumos de Trabalhos da Área temática Histologia e Citologia, do XXXII Congresso Brasileiro de ZoologiaSociedade ...

core  

Biomarcadores etológicos no invasivos de estrés ambiental: estudio comparativo en dos teleosteos de ecosistemas de la región pampeana argentina [PDF]

open access: yes, 2006
Mediante un dispositivo de registro automático se estudió el efecto de la exposición a soluciones subletales de Cd2+ (0.3 mg. L'1) sobre algunos parámetros etológicos de juveniles de Cyprinus carpió (carpa común) y de Astyanax fasciatus (“mojarra”).
Eissa, B. L.   +3 more
core   +1 more source

Redescription of Astyanax erythropterus (Holmberg, 1891) (Teleostei: Characiformes: Characidae) from La Plata basin in Argentina

open access: yesNeotropical Ichthyology, 2010
Astyanax erythropterus (Holmberg, 1891) originally described on the basis of one juvenile, is redescribed herein based on juveniles and adults from the type-localiy.
Paula Soneira   +4 more
doaj  

Reproductive performance of lambari ( Astyanax altiparanae ) in a seminatural system using different protocols

open access: green, 2020
Mariana Roza de Abreu   +5 more
openalex   +2 more sources

Catálogo de ejemplares tipo de la colección ictiológica del Museo de La Plata. Adenda 2015 [PDF]

open access: yes, 2015
Fil: Miquelarena, Amalia María. División Zoología Vertebrados. Facultad de Ciencias Naturales y Museo. Universidad Nacional de La Plata; ArgentinaFil: Nadalin, Diego Oscar. División Zoología Vertebrados.
Miquelarena, Amalia María   +1 more
core  

Astyanax totae, a new characid species (Teleostei: Characidae) from the upper rio Iguaçu basin, southeastern Brazil

open access: yesNeotropical Ichthyology
A new species of characid fish, Astyanax totae, is described from a small tributary in the upper drainage of the rio Iguaçu, Paraná basin, Brazil.
Carolina Ferreira Haluch   +1 more
doaj   +1 more source

Home - About - Disclaimer - Privacy