Results 61 to 70 of about 2,746 (164)

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

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

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

Appendix 1. Parsimony analysis of Rhamdia mt cytb data

, 2015
Parsimony analysis of Rhamdia mitochondrial cyt b data.
Mac H. Alford (3265395), Gian Carlo Sánchez-Gárces (3265389), Carmen Liliana Hernández (3265392), Armando Ortega-Lara (3265386)   +3 more
core   +1 more source

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

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 species of Aphanoblastella (Monogenea: Dactylogyridae) parasitic on Rhamdia quelen (Siluriformes: Heptapteridae) from Southeastern Brazil = Nova espécie de Aphanoblastella (Monogenea: Dactylogyridae) parasito de Rhamdia quelen (Siluriformes: Heptapteridae) do sudeste do Brasil

Acta Scientiarum: Biological Sciences, 2009
Aphanoblastella juizforense sp. nov. is described in the gills of the heptapterid fish Rhamdia quelen (Quoy et Gaimard, 1824) from the Paraibuna River, Juiz de Fora, Minasn Gerais State, Brazil.
Adriano Reder de Carvalho, Luiz Eduardo Roland Tavares, José Luis Luque   +2 more
doaj  

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 Quoy & Gaimard 1824

, 2019
Rhamdia quelen (Quoy & Gaimard, 1824) FIRST RECORD FOR THE MITARAKA. — This study. OCCURENCES. — S4, S10, S,12. DISTRIBUTION IN FRENCH GUIANA. — Widespread. ECOLOGY.
Sébastien Brosse, Fréderic Melki, Régis Vigouroux   +2 more
core   +1 more source

Determinação da época da desova e maturação do jundiá, Rhamdia sapo, baseado no IGS e em estudo morfocitológico das gônodas [PDF]

, 1980
Seasonal changes of the oocyte and the determination of the time of spawning of Rhamdia sapo are studied in this paper by the use of the Gonado-somatic Index (IGS), the monthly weight proportion of oocytes coeficient (CPN) and the oocyte area in each os ...
Bossemeyer, Ilca Marion Knewitz, Hall, George A. Barton   +1 more
core   +1 more source