Results 1 to 10 of about 3,656 (144)

Effects Caused by the Ingestion of Microplastics: First Evidence in the Lambari Rosa (Astyanax altiparanae) [PDF]

open access: yesAnimals, 2023
Microplastics are a class of contaminants that pose a threat to aquatic biota, as they are easily found in aquatic ecosystems and can be ingested by a wide variety of organisms, such as fish.
Ana Laura Athayde Lourenço   +3 more
doaj   +2 more sources

Bioaccumulation and Depletion of the Antibiotic Sulfadiazine 14C in Lambari (Astyanax bimaculatus) [PDF]

open access: yesAnimals, 2023
Antibiotics are present in the environment, primarily due to their release through wastewater treatment plants, agricultural practices, and improper disposal of unused medications.
Patrícia Alexandre Evangelista   +7 more
doaj   +2 more sources

Integrating ontogenetic shift, growth and mortality to determine a species' ecological role from isotopic signatures. [PDF]

open access: yesPLoS ONE, 2015
Understanding species linkages and energy transfer is a basic goal underlying any attempt at ecosystem analysis. Although the first food-web studies were based on gut contents of captured specimens, the assessment of stable isotopes, mainly δ13C and δ15N,
Nelson F Fontoura   +4 more
doaj   +2 more sources

Reproductive aspects of an isolated population of Psalidodon aff. fasciatus (Teleostei: Characidae) from southern Brazil

open access: yesActa Limnologica Brasiliensia, 2023
: Aim To investigate reproductive characteristics in a small population of Psalidodon aff. fasciatus living in isolation in an environment with a unique geological configuration, a doline-shaped depression (known as Furna 2), with a mean diameter of 80 ...
Franciele Fernanda Kerniske   +5 more
doaj   +1 more source

Experiência e racionalidade estética no trabalho docente

open access: yesDevir Educação, 2020
Compreender o trabalho docente como experiência, incorporar a racionalidade estética e o cuidado de si tornam-se condições para a sua valorização. O enfraquecimento e a precarização das atividades educativas na sociedade contemporânea tem provocado ...
Mauricio Inácio dos Santos   +1 more
doaj   +1 more source

Preferência alimentar de juvenis de lambari-cachorro, Oligosarcus hepsetus, em relação a duas espécies de presas de peixe em ambiente controlado

open access: yesCiência Rural, 2014
O presente trabalho foi baseado em dados pretéritos sobre a dieta natural do lambari-cachorro Oligosarcus hepsetus em um reservatório do Sudeste brasileiro, e com isso foi testada a preferência alimentar desse carnívoro, a partir de experimentos com ...
Alejandra Filippo Gonzalez Neves dos Santos   +3 more
doaj   +1 more source

Effect of the inclusion of fish residue oils in diets on the fatty acid profile of muscles of males and females lambari (Astyanax altiparanae)

open access: yesRevista Brasileira de Zootecnia, 2012
This study evaluated the effects of two lipids sources of fish residue (tilapia and salmon) compared with a vegetable oil source (soybean oil) on the fatty acid profiles of male and female lambari. This experiment was developed in a completely randomized
Ligia Uribe Gonçalves   +2 more
doaj   +1 more source

Effect of photoperiod stress assessment and locomotor activity of female lambari (Astyanax bimaculatu)

open access: yesCiência e Agrotecnologia, 2014
Some studies and scientific investments have been done in aquaculture aiming to minimize the stress of the fish due to different factors, as management, nutritional status, water quality, temperature, photoperiod, and salinity. This study aimed to verify
Fernanda Keley Silva Pereira Navarro   +3 more
doaj   +1 more source

Apparent digestibility for Zophobas morio meal in diets for juvenile yellowtail lambari, Astyanax bimaculatus (Linnaeus 1758) [PDF]

open access: yesAnais da Academia Brasileira de Ciências
Aquaculture is essential for food security and the yellowtail lambari is of great importance in Brazilian fish farming. Zophobas morio meal has emerged as a sustainable protein alternative for fish diets.
TIAGO O. DE AGUILAR   +7 more
doaj   +1 more source

Morfologia intestinal e desempenho corporal de Jundiá cinza-rosa (Rhamdia quelen) e Lambari cinza-rosa (Astyanax altiparanae)

open access: yesPubvet, 2018
O objetivo deste trabalho foi avaliar a morfologia intestinal e o desempenho corporal dos alevinos de Jundiá cinza-rosa (Rhamdia quelen) e Lambari cinza-rosa (Astyanax altiparanae). Os parâmetros da qualidade da água durante o período experimental foi em
Kátia Kalko Schwarz   +2 more
doaj   +1 more source

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