Results 51 to 60 of about 3,255 (190)

Low‐Effort eDNA Sampling Reveals Fish Community Patterns in a Neotropical River Basin

open access: yesEnvironmental DNA, Volume 7, Issue 4, July–August 2025.
Low eDNA sampling effort (< 10 sample sites) using a portable on‐site kit with syringe filters and a modest water volume (< 500 mL per site) provided a rapid and robust snapshot of fish biodiversity. Environmental DNA based species richness increases along the upstream‐downstream gradient showing a significant negative correlation with river elevation ...
Daniel Cardoso Carvalho   +4 more
wiley   +1 more source

Peixes nativos do Rio São Francisco adaptados para cultivo. [PDF]

open access: yes, 2012
A produção de peixes é uma atividade que vem crescendo no Brasil e tende a continuar assim, já que estudos divulgados recentemente apontam para o aumento do consumo de pescados, inclusive no nosso País, que é rico em recursos hídricos e em diversidade de
BALZANA, L.   +5 more
core  

Structural Analysis of Embryonic Development of Embryos From the Crossing of Two Species of Siluriform

open access: yesAquaculture Research, Volume 2025, Issue 1, 2025.
Based on the need for knowledge about the biology of hybrid fish specimens currently being produced by commercial fish farmers, this study aimed to study the initial ontogenesis up to the fifth day after larval hatching of the Hybrid LP produced by crossing Leiarius marmoratus (♀) and Pseudoplatystoma reticulatum (♂), thus producing important data for ...
Yasmin Santos dos Reis   +7 more
wiley   +1 more source

Treinamento alimentar de juvenis de Surubim Híbrido. [PDF]

open access: yes, 2011
TCC (graduação) - Universidade Federal de Santa Catarina, Centro de Ciências Agrárias, Curso de Engenharia de Aquicultura.O surubim híbrido (Pseudoplatystoma corruscans x P.
Maia, Cláudia Rodrighero
core  

U–Pb and Sm–Nd geochronology of amphibolites from the Curaçá Belt, São Francisco Craton, Brazil : tectonic implications [PDF]

open access: yes, 2007
The Curaçá terrane is part of the Itabuna–Salvador–Curaçá (I–S–C) Paleoproterozoic orogen in the São Francisco craton, northeastern Brazil, and comprises supracrustal rocks, gneisses of their probable basement, amphibolites, and mafic-ultramafic Cu ...
Dantas, Elton Luiz   +4 more
core   +1 more source

Analysis of Migratory Catfish Production from Artisanal Fishing in the Middle Madeira Sub‐Basin Using New Monitoring Methods, Southwestern Amazon

open access: yesJournal of Applied Ichthyology, Volume 2024, Issue 1, 2024.
Studies on the production of Pimelodidae catfish in the Amazon are generally carried out in large fishing centers. However, the data referring to small‐scale fisheries have gaps that can represent a risk to the activity. This study evaluated the volume produced and the revenue obtained from migratory catfish of the Pimelodidae family of commercial ...
Igor Hister Lourenço   +4 more
wiley   +1 more source

Uso do ultra-som em programas de reprodução de peixes nativos [PDF]

open access: yes, 2011
bitstream/CPAP/56070/1/COT62.pdfFormato ...
CREPALDI, D. V., ROTTA, M. A.
core  

Growth performance and digestibility of juvenile Nile tilapia fed diets containing acid silage viscera of surubim catfish - doi: 10.4025/actascianimsci.v35i1.14470

open access: yesActa Scientiarum: Animal Sciences, 2012
This study aimed to evaluate increasing levels (0, 4, 8 and 12%) of acid silage viscera of surubim catfish as an alternative protein source on growth performance and apparent digestibility coefficients (ADC) for Nile tilapia.
Hamilton Hisano, Pamela Souza de Pietro
doaj   +1 more source

Atividade de lipase em quimo de três espécies tropicais de peixes Teleostei de água doce

open access: yesRevista Brasileira de Zootecnia, 2000
RESUMO - O objetivo do presente trabalho foi avaliar a atividade de lipase no quimo dos intestinos médio e posterior de três espécies de peixes Teleostei, com hábitos alimentares diferentes, piracanjuba (Brycon orbignyanus), piau (Leporinus friderici ...
José Teixeira Seixas Filho   +4 more
doaj  

Parâmetros imunológicos de surubins vacinados e suplementados com probiótico. [PDF]

open access: yes, 2013
TCC (graduação) - Universidade Federal de Santa Catarina. Centro de Ciências Agrárias. Curso de Engenharia de Aquicultura.Este estudo avaliou a eficiência da vacinação intraperitoneal (ip) contra Aeromonas hydrophila com reforço oral e suplementação com ...
Pereira, Scheila Anelise
core  

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