Results 91 to 100 of about 14,954 (263)

Biologia reprodutiva e indução de micronúcleos em Astyanax spp : expostos às aguas do Rio Jacutinga, Sul do Brasil [PDF]

open access: yes, 2017
O estudo teve como objetivo avaliar a biologia reprodutiva e o percentual de micronúcleos (MN) em eritrócitos de Astyanax spp. Foram comparadas duas porções do Rio Jacutinga-SC, uma área alagada pela Usina Hidrelétrica de Itá-SC
Armiliato, Neide   +2 more
core  

Physico-chemical characteristics of water and ichthyofauna composition of the Piedras Moras reservoir (Córdoba, Argentina) [PDF]

open access: yes, 2017
El embalse Piedras Moras (32°10,13’S, 64°16,50’W) es el último de una serie de seis que se han construido sobre la cuenca del río Tercero en la provincia de Córdoba (Argentina).
Biolé, Fernanda Gabriela   +3 more
core   +1 more source

Mercury bioaccumulation in fishes of a paddy field in Southern of Brazil

open access: yesActa Limnologica Brasiliensia, 2015
Aim: The aim of present study was to evaluate the Hg concentration in two species of fish (Astyanax sp and Corydoras paleatus) and its potential use as a biomonitor, in order to know if the use of pesticides and fertilizers in paddy can enhance the Hg ...
Vinicius Tavares Kütter   +5 more
doaj   +1 more source

Does Euripides Call the Gods ????????????????? [PDF]

open access: yes, 1979
published or submitted for ...
McDonald, Marianne
core  

Fish, Corumbataí and Jacaré-Pepira river basins, São Paulo State, Brazil [PDF]

open access: yes, 2006
Fish were studied in two river basins (Corumbataí and Jacaré-Pepira) subjected to strong human pressure, in the interior of the State of São Paulo, southeastern Brazil.
Braga, F. M. S., Gomiero, L. M.
core  

Astyanax cocibolca, a new characid (Pisces: Ostariophysi) from Lake Nicaragua, Central America

open access: yesRevista de Biología Tropical, 2008
Astyanax cocibolca, a small filter-feeding species is a new characid species endemic to Lake Nicaragua. It is distinguished from the syntopic Astyanax aeneus by its high gill raker count, slender body, upturned snout, long maxillary bones, conical outer ...
William A Bussing
doaj  

Gonadal development and reproductive period of the characin Astyanax aff. bimaculatus (Characiformes: Characidae) in a tropical reservoir in southeastern Brazil [PDF]

open access: gold, 2019
Francisco Gerson Araújo   +4 more
openalex   +1 more source

Plasticity in the diet of Astyanax taeniatus in a coastal stream from south-east Brazil

open access: yesBrazilian Journal of Biology
In this work we aimed to characterise the diet of Astyanax taeniatus (Jenyns 1842) (Characiformes, Characidae) along the Mato Grosso stream and we hypothesised that the diet of this species would vary according to spatial, seasonal and ontogenetic ...
LR. Manna, CF. Rezende, R. Mazzoni
doaj   +1 more source

Complete mitochondrial genome sequence of neotropical fish Astyanax giton Eigenmann 1908 (Ostariophysi; Characidae)

open access: yesMitochondrial DNA. Part B. Resources, 2017
Here we report, for the first time, the complete mitochondrial genome of Astyanax giton which, together with other species, are popularly known as tetras.
Cynthia Aparecida Valiati Barreto   +4 more
doaj   +1 more source

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