Results 61 to 70 of about 942 (171)

Ação do tempo e da forma de suplementação alimentar com Artemia franciscana sobre a sobrevivência e o crescimento de larvas de jundiá Action of time and feeding suplementation form with Artemia franciscana on the survival and growth of the south american catfish larvae

Ciência Rural, 2000
O presente trabalho foi realizado com o objetivo de verificar o efeito da suplementação alimentar com Artemia franciscana no desempenho de larvas de jundiá (Rhamdia quelen). Os tratamentos foram: T1 - Suplementação com náuplios de Artemia durante 7 dias;
Everton Rodolfo Behr, Ana Paula Tronco, João Radünz Neto   +2 more
doaj   +1 more source

Integrated cultivation of sea asparagus, celery, and Southern black drum in saline clear waters and biofloc‐based aquaponics

Agronomy Journal, Volume 118, Issue 1, January/February 2026.
Abstract Aquaponics is an alternative agricultural practice that combines aquaculture with hydroponics. It increases productivity while treating macronutrient loads on effluents. Yet, little information is available on productivity of commercial aquaponic models using saline waters, especially with biofloc technology (BFT) systems, which are ...
Larissa M. K. Britz, Paola P. Guterres, Isadora Kamphorst, Cybele Pinheiro, Luis Poersch, Marcelo Okamoto, César S. B. Costa   +6 more
wiley   +1 more source

Effects of the herbicide atrazine in neotropical catfish (Rhamdia quelen)

Ecotoxicology and Environmental Safety, 2013
The exposure to a world-wide used herbicide atrazine (ATZ) (96h exposure to 2, 10, and 100μgL(-1)), was investigated on the freshwater fish Rhamdia quelen through a multi biomarker approach. Liver histopathology revealed leukocyte infiltration, hepatocyte vacuolization like steatosis and necrosis areas, leading to raised lesion index levels in all ...
M, Mela, I C, Guiloski, H B, Doria, M A F, Randi, C A, de Oliveira Ribeiro, L, Pereira, A C, Maraschi, V, Prodocimo, C A, Freire, H C, Silva de Assis   +9 more
openaire   +2 more sources

Tails of Biodiversity: Vertebrate Community Assessment in a Neotropical River Basin via eDNA Metabarcoding

Environmental DNA, Volume 8, Issue 1, January–February 2026.
This study used environmental DNA (eDNA) metabarcoding to assess vertebrate biodiversity in headwater streams of the Rio Santo Antônio basin, southeastern Brazil, a tributary of the Rio Doce. A total of 119 vertebrate OTUs were identified, with oxidation–reduction potential emerging as the strongest environmental predictor of species richness.
Larissa Moreira‐Silva, Rennan Garcias Moreira, Jim Perry, Walisson Kenedy‐Siqueira, Guilherme Costa Baião, Daniel Negreiros, Fernando Figueiredo Goulart, Josimar Daniel Gomes, Geraldo Wilson Fernandes   +8 more
wiley   +1 more source

A new cave species of Rhamdia (Siluriformes: Heptapteridae) from Serra do Ramalho, northeastern Brazil, with notes on ecology and behavior

Neotropical Ichthyology
Rhamdia enfurnada, a new troglobitic (exclusively subterranean) catfish, is described from the Gruna do Enfurnado, Serra do Ramalho, southwestern Bahia State, middle São Francisco River basin.
Maria Elina Bichuette, Eleonora Trajano
doaj   +1 more source

Monoterpenes: Functional Additives for Reducing Antibiotics in Aquaculture

Reviews in Aquaculture, Volume 18, Issue 1, January 2026.
ABSTRACT Aquaculture is a rapidly growing industry that supplies fish for global consumption. However, the intensive production practices have resulted in disease outbreaks, largely driven by the misuse of antibiotics. Natural alternatives, such as monoterpenes, which are biocompounds derived from essential oils obtained from plants like thyme and ...
Danilo Vitor Vilhena Batista, Barbara Silveira Souza, Caio Francisco Santana Farias, Ana Paula de Souza, Alexandre Vaz da Silva, Emilly Monteiro Lopes, Elenice Martins Brasil, Maurício Laterça Martins, José Luiz Pedreira Mouriño, Marco Shizuo Owatari   +9 more
wiley   +1 more source

Rhamdia quelen

Rhamdia quelen (Quoy & Gaimard 1824) Distribution Mexico to Argentina.
Escobar-Camacho, Daniel, Valdiviezo-Rivera, Jonathan, Carrillo-Moreno, Carolina, Argüello, Pablo, Swing, Kelly   +4 more
openaire   +2 more sources

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

Ciência 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, Bernardo Baldisserotto, Walter Garcia Parra, Deodoro Atlante Brandão, Zolst Herke   +4 more
doaj   +1 more source

A Maximum 34% Substitution of Fish Meal by Soybean Meal Is Recommended for Rhynchocypris lagowskii Dybowski Cultured in Biofloc Systems: Evidence From Growth and Intestinal Barrier Function

Aquaculture Nutrition, Volume 2026, Issue 1, 2026.
In this study, glucose was used as the carbon source for the bioflocs in each group, with a carbon‐to‐nitrogen ratio (C/N) of 20 : 1. Juvenile Rhynchocypris lagowskii Dybowski (6.89 ± 0.02 g) were used as the experimental animals. Soybean meal (SBM) protein replaced 0.0% (CK), 17.0% (B17), 34.0% (B34), 51.0% (B51), and 68.0% (B68) of fish meal protein ...
Zhi-Yong Yang, Deng-Lai Li, Ke-xin Wang, Li-Fang Wu, Rui Zhu, Qiong Wu, Ioannis T. Karapanagiotidis   +6 more
wiley   +1 more source

DESENVOLVIMENTO EMBRIONÁRIO DO JUNDIÁ RHAMDIA VOULEZI

Revista Acadêmica Ciência Animal, 2012
O presente estudo teve como objetivo avaliar o desenvolvimento embrionário de jundiás oriundos de reprodutores mantidos em tanques-rede. O experimento foi realizado no Centro de Difusão e Desenvolvimento Tecnológico do Rio Iguaçu, localizado no município de Boa Vista da Aparecida (PR) em fevereiro de 2012.
Vinicius Pimenta Sividanes, Junior Antonio Decarli, Aldi Feiden, Wilson Rogério Boscolo, Altevir Signor, Arcângelo Augusto Signor, Odair Diemer   +6 more
openaire   +1 more source