Results 21 to 30 of about 205 (157)

Structural analysis of fertilization in the fish Brycon orbignyanus [PDF]

Zygote, 2009
SummaryIn the present work, we analyzed the structure of oocytes and fertilized eggs of the piracanjuba fish (Brycon orbignyanus) under light and scanning electron microscopy. After inducing spawning, samples were collected at the moment of oocyte extrusion, when oocytes and semen were mixed (time 0), as well as at 10, 20 and 30 s after mixing, every ...
Ganeco, Luciana Nakaghi, Franceschini-Vicentini, Irene Bastos, Okada Nakaghi, Laura Satiko   +2 more
openaire   +3 more sources

Dynamic Adaptive Environmental Flows (DAE‐Flows) to Reconcile Long‐Term Ecosystem Demands With Hydropower Objectives

Water Resources Research, Volume 59, Issue 7, July 2023., 2023
Abstract This study investigates how environmental flows (e‐flows) can be designed as dynamic operating policies to optimize long‐term economic and ecosystem performance in reservoir systems. The main goal is to provide e‐flow solutions that contribute to better preparedness and flexibility of hydro‐systems to face multiyear stress periods, reducing ...
Ana Paula Dalcin, Guilherme Fernandes Marques, Amaury Tilmant, Marcelo Olivares   +3 more
wiley   +1 more source

Growth, red blood cells, and gill alterations of red pacu (Piaractus brachypomus) fingerlings by chronic exposure to different total suspended solids in biofloc

Journal of the World Aquaculture Society, Volume 53, Issue 3, Page 652-668, June 2022., 2022
Abstract Chronic exposure to high biofloc total suspended solids (TSS) could affect growth, red blood cells, and generate gill alterations in fish. Red pacu, Piaractus brachypomus, fry (2.7 ± 0.5 g weight) were exposed to different biofloc TSS concentrations with low (T1: 200–300), and medium (T2: 400–600 mg/L) levels and compared to a treatment ...
Beatriz Elena Angeles‐Escobar, Suzianny Maria Bezerra Cabral da Silva, William Severi   +2 more
wiley   +1 more source

Stereological analysis of spermatogenesis in Brycon orbignyanus (Characiformes: Bryconidae)

Aquaculture Research, 2022
Fundação de Amparo à Pesquisa do Estado de São Paulo (FAPESP)
Benevente, Cristiane Fernanda, Quirino, Patricia Postingel, Gomes-Silva, Luciane, Delgado, Maria Luiza Ribeiro, Bianchini, Bárbara Correa, de Freitas, Guilherme Antônio, Ninhaus-Silveira, Alexandre, Veríssimo-Silveira, Rosicleire   +7 more
openaire   +2 more sources

Cross-amplification of heterologous microsatellite markers in Piracanjuba

Ciência Rural, 2017
: Brycon orbignyanus, popularly known in Brazil as piracanjuba, is a fish with great economic value but whose natural population drastically decreased in number during the last years.
Pedro Luiz de Castro, Ricardo Pereira Ribeiro, Silvio Carlos Alves dos Santos, Elenice Souza dos Reis Goes, Felipe Pinheiro de Souza, Angela Rocio Poveda-Parra, Lauro Vargas, Angela Maria Urrea-Rojas, Nelson Mauricio Lopera-Barrero   +8 more
doaj   +1 more source

Transferability of heterologous microsatellite primers in Brycon gouldingi

Ciência Rural, 2018
: Brycon gouldingi is a species of neotropical fish of socioeconomic and environmental importance in the Tocantins-Araguaia Basin. Genetic studies on this species are still limited, making it difficult to evaluate the population structure and genetic ...
Felipe Pinheiro de Souza, Ed Christian Suzuki de Lima, Natalia Gonçalves Leite, Angela Maria Urrea-Rojas, Andrei Lincoln Yamachita, Victor César Freitas Pandolfi, Nelson Mauricio Lopera-Barrero   +6 more
doaj   +1 more source

Embryonic development of teleostBrycon orbignyanus

Zygote, 2018
SummaryBrycon orbignyanusis an important large teleost that is currently on the list of endangered species, therefore studies on its reproductive biology and embryology are fundamental to help species conservation and recovery. The objective of this research was to characterize the events that occur during extrusion, fertilization and embryonic ...
Luciana Nakaghi Ganeco-Kirschnik, Irene Bastos Franceschini-Vicentini, Maria do Carmo Faria Paes, Laura Satiko Okada Nakaghi   +3 more
openaire   +3 more sources

CARACTERIZACIÓN GENÉTICA DE LOTES DE Brycon orbignyanus UTILIZADOS EN PROGRAMAS DE REPOBLAMIENTO [PDF]

Revista Mvz Cordoba, 2008
Objetivo. Caracterizar genéticamente dos lotes y una progenie de Brycon orbignyanus destinados para programas de repoblamiento, utilizando la técnica molecular de RAPD (Random amplified polymorphic DNA). Materiales y métodos.
Nelson Lopera B, Ricardo Ribeiro P, Rodolfo Sirol N, Jayme Povh, Patricia Gomes, Danilo Streit Jr, Lauro Vargas M   +6 more
doaj   +3 more sources

Crecimiento y supervivencia de postlarvas de piracanjuba (brycon orbignyanus) [PDF]

Archivos de Zootecnia, 2007
Este trabajo fue desarrollado en el laboratorio de reproducción de peces de la Estación Ambiental de Itutinga, CEMIG, en enero de 2002. El objetivo fue evaluar el crecimiento y supervivencia de postlarvas de piracanjuba (Brycon orbignyanus), en diferentes densidades de siembra y frecuencias de alimentación.
Silva,M.O., Logato,P.V.R., Murgas,L.D.S., Ribeiro,P.A.P., Maria,A.N.   +4 more
openaire   +3 more sources

First record of the “Matrinxã” Brycon amazonicus (Agassiz 1829) (Characiformes: Bryconidae) in the Rio Paranapanema mouth region, Upper Rio Paraná basin, Brazil [PDF]

Acta Limnologica Brasiliensia
: The Rio Paranapanema is one of the most important tributaries of the Upper Rio Paraná, and in recent decades there has been a marked decline in the population of native species due to the development of a series of reservoirs and the introduction of ...
Renan Borges dos Reis, Bruno Henrique Mioto Stabile, Augusto Frota, Weferson Júnio da Graça   +3 more
doaj   +1 more source