Results 51 to 60 of about 599 (181)

Seasonal patterns may influence the diet of the lambari Serrapinnus notomelas (Eigenmann 1915)

Acta Limnologica Brasiliensia, 2022
Abstract: Aim This study investigated whether seasonal variations have an effect on diet composition of Serrapinnus notomelas in a marginal lagoon located under the area of influence of the Tibagi River, Upper Paraná Basin. Methods Samples were carried out monthly between February 2017 and January 2018, and fish specimens were caught with two sieves (
Nathália Cardamoni Santiago, Victoria Silva Wiezel Santos, Thiago Deruza Garcia, Ana Paula Vidotto-Magnoni, Fernando Camargo Jerep   +4 more
openaire   +4 more sources

Desenvolvimento de juvenis de lambari Astyanax bimaculatus (Linnaeus, 1758), sob diferentes densidades de estocagem em tanques-rede

Acta Scientiarum: Biological Sciences, 2008
O objetivo deste trabalho foi avaliar a influência da densidade de estocagem sobre o desenvolvimento de juvenis de lambari (Astyanax bimaculatus), em tanques-rede, em sua fase inicial.
Cristiane Vilela, Carmino Hayashi
doaj   +1 more source

Morphological and Genetic Structure of Two Equivalent Astyanax Species (Characiformes: Characidae) in the Region of Paranaíba Arc

The Scientific World Journal, Volume 2019, Issue 1, 2019., 2019
The Astyanax scabripinnis complex is composed of a large number of almost morphological indistinguishable species, including Astyanax paranae and Astyanax rivularis, which exist in the Paraná and São Francisco Basins, respectively, and sometimes are considered subspecies of the A. scabripinnis group or even are cited just as A. scabripinnis.
Renan Rodrigues Rocha, Rosana de Mesquita Alves, Rubens Pasa, Karine Frehner Kavalco, Lukas Kratochvil   +4 more
wiley   +1 more source

Distribution modelling for Neotropical freshwater stingrays Potamotrygon brachyura and Potamotrygon motoro (Myliobatiformes, Potamotrygonidae) in the Uruguay River basin

Journal of Fish Biology, EarlyView.
Abstract This study aimed to identify geographical distribution patterns of the giant short‐tailed river stingray Potamotrygon brachyura and the motoro stingray Potamotrygon motoro in the Uruguay River basin. Data on presence/absence of stingrays were based on fishers' knowledge accessed by interviews through expeditions in Brazil, Argentina and ...
Danilo Araujo Soares Pereira, Roberto E. Reis, Nelson F. Fontoura   +2 more
wiley   +1 more source

Heterogeneity and scaling of photosynthesis, respiration, and nitrogen uptake in three Atlantic Rainforest streams

Ecosphere, Volume 8, Issue 9, September 2017., 2017
Abstract Leaves, epilithon, macrophytes, and fine benthic organic material are central ecosystem compartments to food webs and mediate nutrient fluxes in streams. Most estimates of gross primary production (GPP) and ecosystem respiration (ER) are made at a reach scale, averaging across compartments.
Flavia Tromboni, Walter K. Dodds, Vinicius Neres‐Lima, Eugenia Zandonà, Timothy P. Moulton   +4 more
wiley   +1 more source

Viabilidade de diferentes taxas de alimentação para o cultivo de Astyanax bimaculatus

Revista de Ciências Agroveterinárias, 2018
O objetivo deste trabalho foi avaliar o desempenho zootécnico e custo de produção do quilograma do lambari do rabo amarelo (Astyanax bimaculatus) alimentados com diferentes taxas de arraçoamento.
Adolfo Jatobá
doaj   +1 more source

Reproductive Aspects of Moenkhausia intermedia Eigenmann, 1908 (Pisces, Characidae) in the Upper Paraná River Basin, Brazil

International Scholarly Research Notices, Volume 2011, Issue 1, 2011., 2011
The aim of this work was to determine the reproductive tactic of the population of Moenkhausia intermedia, inhabiting the Capivara Reservoir, lower Paranapanema River. Four different stretches of the reservoir were selected, and sampling was carried out quarterly, in the period from 2001 to 2004.
Armando César Rodrigues Casimiro, Diego Azevedo Zoccal Garcia, Fernanda Simões de Almeida, Mário Luís Orsi, A. Arslan, P. G. Bianco, A. Robins   +6 more
wiley   +1 more source

Dinâmica de populações e preferência alimentar da cochonilha-da-raiz (Pseudococcus comstocki) pela tiririca Population dynamics and preferential feeding of mealybug (Pseudococcus comstocki) to purple nutsedge (Cyperus rotundus)

Planta Daninha, 2002
A flutuação populacional da cochonilha-da-raiz (Pseudococcus comstocki) (Kuwana, 1902) e sua preferência alimentar foram estudadas quando infestando plantas de tiririca (Cyperus rotundus) oriundas dos municípios de Lavras, Lambari e Três Pontas ...
L.V.C. Santa-Cecília, J.C. Simões, I.F. Souza   +2 more
doaj   +1 more source

Insights on factor analysis applied to multi‐trait and multi‐environment selection of common bean lines

Crop Science, Volume 65, Issue 4, July/August 2025.
Abstract One of the objectives of common bean (Phaseolus vulgaris L.) breeding programs is selection of lines with superior agronomic traits that are adapted to different environmental conditions. Thus, the aim of this study was to verify the applicability of factor analysis as a strategy to assist the selection of common bean lines for multi‐traits in
Júlio Augusto de Castro Miguel, Vinícius Quintão Carneiro, Jussara Mencalha, Rafaela Pereira Carvalho, Andreza Rafaely Martins José, José Eulário Lampi Dique, Magno Antonio Patto Ramalho, Tiago de Souza Marçal   +7 more
wiley   +1 more source

Plasma levels of luteinizing hormone and gonadal maturation of lambari females under different photoperiods

Pesquisa Agropecuária Brasileira, 2013
The objective of this work was to evaluate the effect of photoperiod on luteinizing hormone (LH) plasma levels and gonadal maturation of lambari females.
Fernanda Keley Silva Pereira Navarro, Rodrigo Diana Navarro, Luis David Solis Murgas, Marina Apocalypse Nogueira Pereira, Guilherme Crispim Hundley   +4 more
doaj   +1 more source