Results 31 to 40 of about 1,276 (199)

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

Analysis of genetic variability in three species of Pimelodidae (Ostariophysi - Siluriformes)

Genetics and Molecular Biology, 1998
Genetic variability of three Pimelodidae species, Pimelodus maculatus, Iheringichthys labrosus, and Pinirampus pirinampu, collected at one site in the Tibagi River, was comparatively analyzed using protein data for six systems which code 15 loci in liver,
Fernanda S. de Almeida, Leda M.K. Sodré
doaj   +1 more source

Efecto de la proteína dietaría en el crecimiento y sobrevivencia de alevines de Calophysus macropterus (Lichtenstein, 1819) “Mota” en condiciones de laboratorio

Manglar
El presente estudio tuvo como objetivo evaluar el efecto de tres niveles proteicos (35%, 40% y 45% Proteína Bruta) y un nivel energético (4800 kcal/kg) en los parámetros de desarrollo e índices zootécnicos de 45 alevines de mota Calophysus macropterus ...
Efraín Samuel Morales García, Ricardo Julián Oliva Paredes, Carmen Rosa Reategui Acosta, Víctor H. Puicón Niño de Guzmán, Germán Augusto Murrieta Morey   +4 more
doaj   +1 more source

Supplementary taxonomic description of Demidospermus pinirampi (Monogenoidea, Dactylogyridae), with a new host record and an expansion of its distribution range [PDF]

Acta Amazonica, 2017
During a survey conducted in the Lajeado Reservoir of the Tocantins River, in the state of Tocantins, Brazil, dactylogyrids were recovered from the gills of Pimelodina flavipinnis.
Julio Cesar Cenci de AGUIAR, Glauco Baptista Franco BUENO, Sonia Maria Cursino dos SANTOS, Edson Aparecido ADRIANO   +3 more
doaj   +2 more sources

Age and growth of Pimelodella pappenheimi (siluriformes, pimelodidae) from an Atlantic Forest Stream in Southern Brazil

Brazilian Archives of Biology and Technology, 1999
Studies were performed to determine the growth curves in length and weight for Pimelodella pappenheimi in the "das Pombas" stream, a coastal stream susceptible to the flash flood phenomenon.
Marina Faria do Amaral, José Marcelo Rocha Aranha, Márcia Santos de Menezes   +2 more
doaj   +1 more source

Amazonian fish migration as a social–cultural–ecological process

People and Nature, Volume 7, Issue 12, Page 3297-3312, December 2025.
Abstract In this study, we highlight the rich perspectives and explanations of fish migration held by Indigenous groups across the Amazon. We present the aspects of Indigenous cosmological stories, drawing from our exploratory review of cultural ethnographies and grey literature, as well as the authors' own experiences. We ask, how do Amazonian peoples
LuLu Victoria‐Lacy, Thiago B. A. Couto, Natalia C. Piland, Jesús Dámaso, Stephannie Fernandes, Simone Athayde, Elizabeth P. Anderson   +6 more
wiley   +1 more source

The Ecological Memory of Fish Assemblages in Tropical Agroecosystems With Different History of Landscape Changes

Freshwater Biology, Volume 70, Issue 12, December 2025.
ABSTRACT Environmental changes can have persistent effects on the local and regional dynamics of multispecies assemblages. However, the extent of historical legacies on current diversity patterns may depend on the trajectory and intensity of the environmental change. Here, we investigate how persistent decadal land use and land cover (LULC) changes are
Jaquelini O. Zeni, Gabriel L. Brejão, Lilian Casatti, Tadeu Siqueira   +3 more
wiley   +1 more source

New records of crustaceans infesting Phractocephalus hemioliopterus (Siluriformes: Pimelodidae), the large catfish from the Amazon

Revista Mexicana de Biodiversidad, 2019
The aim of the present study was to investigate the infracommunities of ectoparasitic crustaceans in Phractocephalus hemioliopterus Bloch and Schneider, 1801, a catfish from the lower Amazon River, in the state of Pará, eastern Amazon region, Brazil ...
Marcos Sidney B. Oliveira, Lincoln L. Corrêa, Raissa A. Gonçalves, Lígia R. Neves, Luiza Prestes, Drielly O. Ferreira, Marcos Tavares-Dias   +6 more
doaj   +1 more source

HEMOGLOBINAS EM SILURIFORMES DA AMAZÔNIA CENTRAL. III CARACTERIZAÇÃO IMUNOLÓGICA DE ALGUNS BAGRES E CASCUDOS. [PDF]

Acta Amazonica, 1983
Resumo Hemoglobinas de peixes Siluriformes pertencentes às famílias Doradidae; Auchenipteridae; Pimelodidae; Angeneiosidae; Loricariidae e Callichthyidae foram testadas contra anti-soros preparados para hemoglobina de Oxydoras niger (Doradidae: cuiú-cuiú)
Maria Isabel G. Portus, Maria Laise C. Vieira, A. R. Oliveira, A. Focesi Jr   +3 more
doaj   +1 more source

Local Environmental Variables Predict Fish Species Richness and Composition in Sand Beaches of a Neotropical River

River Research and Applications, Volume 41, Issue 9, Page 1949-1958, November 2025.
ABSTRACT Local and regional species diversity is influenced by historical factors, resource availability, biotic interactions, the presence of resources, and adequate environmental conditions. We evaluated the effects of local environmental variables and spatial structure on fish species richness and composition along sandy beaches of a Neotropical ...
Ronaldo Souza da Silva, Jean Carlo Gonçalves Ortega, Lucas Pires de Oliveira, Vinicius Guerra, Werther Pereira Ramalho, Fabiano Corrêa, Mariana Costa Fratari, Lisandro Juno Soares Vieira, Luciano Fogaça Assis de Montag   +8 more
wiley   +1 more source