Results 71 to 80 of about 5,586 (215)

Banco de dados online das exigências nutricionais de espécies aquícolas de interesse comercial [PDF]

open access: yes, 2009
Trabalho de Conclusão de Curso - Universidade Federal de Santa Catarina.
Silveira, Jenniffer
core  

Histopathological changes induced by paraquat on some tissues of gourami fish (Trichogaster trichopterus) [PDF]

open access: yes, 2013
Paraquat is a contact and non-selective herbicide which is used for controlling a wide range of terrestrial weeds and aquatic plants. A long-term contact with this xenobiotic can potentially lead to injuries in fishes as live non-target organisms ...
F. Zoheiri, M. Banaee, M.H. Davoodi
core   +3 more sources

INCLUSÃO DE DIFERENTES FONTES DE AMIDO NA DIETA DE JUNDIÁS (Rhamdia quelen): PARÂMETROS METABÓLICOS E BIOQUÍMICOS

open access: yesCiência Animal Brasileira, 2013
This study was conducted to evaluate the influence of ingestion of different sources of starch on enzymatic and metabolic indicators in blood and liver of Rhamdia quelen. The experiment was conducted during 20 days in water recirculation system.
Naglezi de Menezes Lovatto   +5 more
doaj   +1 more source

Anestesia e toxicidade aguda do eugenol aplicado em juvenis de jundiá, Rhamdia quelen [PDF]

open access: yes, 2014
TCC (graduação) - Universidade Federal de Santa Catarina. Centro de Ciências Agrárias. Curso de Engenharia de Aquicultura.Durante o período de estágio foram realizados três experimentos envolvendo o agente anestésico eugenol, que foram desenvolvidos no ...
Pallamin, Rafael Tanganelli
core  

Illuminating the Dark: Using eDNA Metabarcoding to Study the Unique Ichthyofauna of the Furnas Formation Sinkholes

open access: yesEnvironmental DNA, Volume 7, Issue 4, July–August 2025.
Using eDNA metabarcoding, we assessed fish diversity in isolated sinkholes in southern Brazil, uncovering signs of local extinction and species persistence. This approach offers a non‐invasive tool for biodiversity assessment and informs conservation efforts in unique karst environments.
Luz E. De la Ossa‐Guerra   +5 more
wiley   +1 more source

Biologia reprodutiva e desova induzida de duas espécies de bagres (Osteichthyes: Siluriformes) da bacia do rio São Francisco = Reproductive biology and induced spawning of two catfish species (Osteichthyes: Siluriformes) from the São Francisco river basin

open access: yesActa Scientiarum: Biological Sciences, 2006
Rhamdia quelen e Pseudopimelodus charus são dois bagres que atingem porte acima de 2 kg. Espécimes receberam dose única de extrato bruto de hipófise de carpa comum EBHC (2,5 mg kg-1 de peixe nos machos e 6 mg kg-1 de peixe nas fêmeas).
Edson Vieira Sampaio, Yoshimi Sato
doaj  

Population structure of fishes from an urban stream

open access: yesActa Scientiarum: Biological Sciences, 2017
  The aim of this study was to identify the population structure of the ichthyofauna in an urban stream within an environmental protection area in southern Brazil. Quarterly samplings were conducted between October 2009 and August 2010.
Naiara Zanatta   +4 more
doaj   +1 more source

Desempenho produtivo de larvas de Jundiá (Rhamdia quelen) em sistema de cultivo com bioflocos [PDF]

open access: yes, 2013
Este estudo teve por objetivo avaliar o desempenho de larvas de jundiá (Rhamdia quelen) em sistema de bioflocos. Foram utilizados cinco tratamentos, com larvas estocadas na densidade de 25 peixes L-1 durante 21 dias.
Poli, Moisés Angel
core  

Subchronic effects of dipyrone on the fish species Rhamdia quelen

open access: yesEcotoxicology and Environmental Safety, 2011
The use of the non-steroidal anti-inflammatory drugs such as dipyrone is so widespread that this drug and its metabolites have been detected in effluents and surface water. This study aimed to evaluate the potential toxic effects of dipyrone on the aquatic environment, using a native fish species, Rhamdia quelen.
J H, Pamplona   +8 more
openaire   +2 more sources

Antagonistic Rewiring and Turnover Patterns in a Neotropical Fish–Parasite Metanetwork

open access: yesFreshwater Biology, Volume 70, Issue 7, July 2025.
ABSTRACT Integrating beta‐diversity and network analyses is an emerging approach for understanding the spatial structure of species communities. For instance, although the presence of hosts affects parasite species distribution, environmental factors can either restrict or promote the occurrence of certain parasite species by changing the abundance of ...
Ana Paula Lula Costa   +2 more
wiley   +1 more source

Home - About - Disclaimer - Privacy