Results 31 to 40 of about 6,356 (207)

Identificação de neomacho de Jundiá Rhamdia quelen (Quoy e Gaimard, 1824) através do teste de progênie [PDF]

open access: yes, 2015
TCC (graduação) - Universidade Federal de Santa Catarina. Centro de Ciências Agrárias. Curso de Engenharia de Aquicultura.O objetivo deste estudo foi identificar neomachos de Rhamdia quelen através de teste de progênie.
Borges, Bruno Augusto Amato
core  

A contribution to the checklist of fishes of San Luis province, Argentina [PDF]

open access: yes, 2015
San Luis province presents arheic and endorheic basins that are poorly understood in terms of their ichthyological composition. The samples taken recently from the main basins of this province have yielded data of undisputed biogeographic value for the ...
Bogan, Sergio   +5 more
core   +4 more sources

Evolutionary history of Middle American Rhamdia (Siluriformes: Heptapteridae) inferred from comparative mitogenomic data: Insights on historical biogeography and cave colonization in the group

open access: yesJournal of Systematics and Evolution, Volume 63, Issue 6, Page 1501-1518, November 2025.
Investigating the systematics and biogeography of Neotropical catfishes of the genus Rhamdia refined phylogenetic hypotheses, including deep paraphyly of Rhamdia laticauda, supported northward dispersal catalyzed by emergence of the Panamanian Isthmus and imply that cave colonization is widespread, convergent, and recent, with established cave‐dwelling
Jairo Arroyave   +6 more
wiley   +1 more source

Nova espécie de Trichodina Ehrenberg, 1830 (Ciliophora: Trichodinidae) encontrada em Rhamdia quelen (Siluriforme: Heptapteridae), Santa Catarina, Brasil [PDF]

open access: yes, 2012
TCC (graduação) - Universidade Federal de Santa Catarina, Centro de Ciências Agrárias, Curso de Engenharia de Aquicultura.O presente trabalho foi desenvolvido no Laboratório de Patologia e Sanidade de Organismos Aquáticos – AQUOS, durante o período de ...
Hashimoto, Gabriela Sayuri de Oliveira
core  

Estudo da salmonização do filé de jundiá (Rhamdia quelen), através da adição de corantes naturais à ração. [PDF]

open access: yes, 2007
TCC (graduação em Engenharia de Aquicultura) - Universidade Federal de Santa Catarina, Centro de Ciências Agrárias, 2007O experimento realizado visa a salmonização do filé do jundiá (Rhamdia quelen), por meio da adição de diferentes tipos de corantes à ...
Argenta, Arthur
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

Temperatures for fertilization and hatching and their influence on determining the sex ratio of the silver catfish Rhamdia quelen =Temperatura de fertilização e incubação e sua influência na determinação da proporção sexual do jundiá, Rhamdia quelen

open access: yesActa Scientiarum: Biological Sciences, 2010
This study aimed to evaluate the effects of water temperature duringfertilization and egg incubation in the determination of the sex ratio of fingerlings of silver catfish Rhamdia quelen.
Ricardo da Silva Longo   +1 more
doaj  

Urophysial and pituitary extracts for spawning induction in teleosts Extratos urofisário e hipofisário para indução da desova em teleósteos

open access: yesCiência Rural, 2000
Several studies have suggested that the caudal neurosecretory system could act on fish reproduction. The aim of this study was to compare the effect of urophysial extract (UE) and carp pituitary homogenate (CPH) on the induction of spawning in Hoplias ...
Everton Rodolfo Behr   +4 more
doaj   +1 more source

Relatório de estágio e efeito de diferentes dietas no desempenho larval de jundiá rhamdia quelen (quoy e gaimard, 1824) [PDF]

open access: yes, 2013
TCC (graduação) - Universidade Federal de Santa Catarina, Centro de Ciências Agrárias, Curso de Agronomia.O estágio foi realizado no Laboratório de Biologia e Cultivo de Peixes de Água Doce (LAPAD/AQI/CCA/UFSC), de março a junho de 2013.
Cano, Clara Luna de Bem Barreto
core  

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

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