Search Results - "Agostinho, Carlos Sérgio"

Fish ladder of Lajeado Dam: migrations on one-way routes? by Agostinho, Angelo Antônio(Universidade Estadual de Maringá Nupelia), Marques, Elineide Eugênio(Universidade Federal do Tocantins Núcleo de Estudos Ambientais), Agostinho, Carlos Sérgio(Universidade Federal do Tocantins Núcleo de Estudos Ambientais), Almeida, Deusimar Augusto de(Universidade Federal do Tocantins Curso de Pós-Graduação em Ciências do Ambiente), Oliveira, Rafael José de(Universidade Federal do Tocantins Núcleo de Estudos Ambientais), Melo, Jussiclene Rodrigues Bezerra de(Universidade Federal do Tocantins Núcleo de Estudos Ambientais)

“…Fish ladders are generally conceived to reestablish connectivity among critical habitats for migratory species, thus mitigating the impacts of the blockage of…”
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Selectivity of fish ladders: a bottleneck in Neotropical fish movement by Agostinho, Carlos Sérgio(Universidade Federal do Tocantins Núcleo de Estudos Ambientais), Agostinho, Angelo Antônio(Universidade Estadual de Maringá Nupelia), Pelicice, Fernando(Universidade Estadual de Maringá Nupelia), Almeida, Deusimar Augusto de(Universidade Federal do Tocantins), Marques, Elineide Eugênio(Universidade Federal do Tocantins)

“…Although dozens of fish ladders have been constructed at dams of Brazilian reservoirs, there are few studies evaluating their efficiency as a tool for the…”
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Movements through a fish ladder: temporal patterns and motivations to move upstream by Agostinho, Carlos Sérgio(Universidade Federal do Tocantins Núcleo de Estudos Ambientais), Pereira, Celiana Ribeiro(Universidade Federal do Tocantins Núcleo de Estudos Ambientais), Oliveira, Rafael José de(Universidade Federal do Tocantins Núcleo de Estudos Ambientais), Freitas, Iriene Siqueira(Universidade Federal do Tocantins Núcleo de Estudos Ambientais), Marques, Elineide Eugênio(Universidade Federal do Tocantins Núcleo de Estudos Ambientais)

“…Fish passages are constructed with the aim of reestablishing connectivity between critical habitats, in order to sustain those species that move over a large…”
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Trophic guilds of fishes in sandbank habitats of a Neotropical river by Pereira, Poliana Ribeiro(Universidade Federal do Tocantins Núcleo de Estudos Ambientais), Agostinho, Carlos Sérgio(Universidade Federal do Tocantins Núcleo de Estudos Ambientais), Oliveira, Rafael José de(Universidade Federal do Tocantins Núcleo de Estudos Ambientais), Marques, Elineide Eugênio(Universidade Federal do Tocantins Núcleo de Estudos Ambientais)

“…The objective of this study was to characterize the trophic structure of the community of fishes exploiting riverine sandbank habitats. Collections were…”
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Genetic evidence for a species complex within the piranha Serrasalmus maculatus (Characiformes, Serrasalmidae) from three Neotropical river basins based on mitochondrial DNA sequences by Bignotto, Thaís Souto, Maniglia, Thiago Cintra, Gomes, Vivian Nunes, Oliveira, Isadora Janolio de, Agostinho, Carlos Sérgio, Prioli, Sônia Maria Alves Pinto, Prioli, Alberto José

“…Mitochondrial molecular markers (DNA sequences of D-loop, cytochrome b and cytochrome c oxidase I) were employed to characterize populations of the piranha…”
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Deficient downstream passage through fish ladders: the case of Peixe Angical Dam, Tocantins River, Brazil by Pelicice, Fernando Mayer, Agostinho, Carlos Sérgio

“…Downstream passage through fish ladders and other facilities remains largely uninvestigated in South America. In view of this concern, we monitored ascending…”
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Community reassembly after river regulation: rapid loss of fish diversity and the emergence of a new state by Perônico, Phamela Bernardes, Agostinho, Carlos Sérgio, Fernandes, Rodrigo, Pelicice, Fernando Mayer

“…Hydroelectric expansion has affected the functioning of most tropical rivers in the world. However, community reassembly in Neotropical impoundments remains…”
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Contrasting continental patterns and drivers of taxonomic and functional turnover among fish assemblages across Brazilian reservoirs by Pelicice, Fernando Mayer, da Silva Damasceno, Luciana, de Almeida Ferreira, Eveline, da Graça, Weferson Júnio, Agostinho, Carlos Sérgio, Fernandes, Rodrigo

“…In this paper, we investigated composition and trait turnover among fish assemblages in reservoirs distributed across major Brazilian basins, in order to…”
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rise and fall of fish diversity in a neotropical river after impoundment by Lima, Ana Carolina, Agostinho, Carlos Sérgio, Sayanda, Diogo, Pelicice, Fernando Mayer, Soares, Amadeu M. V. M, Monaghan, Kieran A

“…In contrast to the fast-paced dam construction and river ecosystem alteration which is taking place in the neotropics, ecological knowledge about the effects…”
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Fish trophic guild responses to damming: Variations in abundance and biomass by Dias, Rosa Maria, Ortega, Jean Carlo Gonçalves, Strictar, Larissa, Santos, Natália Carneiro Lacerda, Gomes, Luiz Carlos, Luz‐Agostinho, Karla Danielle Gaspar, Agostinho, Carlos Sérgio, Agostinho, Angelo Antonio

“…Dams and associated reservoirs cause drastic changes in the composition and structure of ichthyofauna. Therefore, functional groups within a fish assemblage…”
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Fish ladders: safe fish passage or hotspot for predation? by Agostinho, Angelo Antonio, Agostinho, Carlos Sergio, Pelicice, Fernando Mayer, Marques, Elineide Eugênio

“…Fish ladders are a strategy for conserving biodiversity, as they can provide connectivity between fragmented habitats and reduce predation on shoals that…”
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All that goes up must come down? Absence of downstream passage through a fish ladder in a large Amazonian river by Agostinho, Carlos Sérgio, Pelicice, Fernando Mayer, Marques, Elineide Eugênio, Soares, Anderson Brito, de Almeida, Deusimar Augusto Alves

“…Millions of fish ascend through fishways in South America every year, but there is no evidence that downstream passage is occurring in large dams. Based on…”
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Alternative ways to measure impacts of dam closure to the structure of fish communities of a neotropical river by Lima, Ana Carolina, Agostinho, Carlos Sérgio, Soares, Amadeu M.V.M., Monaghan, Kieran A.

“…Neotropical freshwaters host some of the most biodiverse ecosystems in the world and are among the most threatened by habitat alterations. The high number of…”
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Use of otoliths to estimate size at sexual maturity in fish by Agostinho, Carlos Sérgio

“…The viability of an alternative method for estimating the size at sexual maturity of females of Plagioscion squamosissimus (Perciformes, Sciaenidae) was…”
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A multiple hypothesis approach to explain species richness patterns in neotropical stream-dweller fish communities by Vieira, Thiago Bernardi, Pavanelli, Carla Simone, Casatti, Lilian, Smith, Welber Senteio, Benedito, Evanilde, Mazzoni, Rosana, Sánchez-Botero, Jorge Iván, Garcez, Danielle Sequeira, Lima, Sergio Maia Queiroz, Pompeu, Paulo Santos, Agostinho, Carlos Sérgio, Montag, Luciano Fogaça de Assis, Zuanon, Jansen, Aquino, Pedro De Podestà Uchôa de, Cetra, Mauricio, Tejerina-Garro, Francisco Leonardo, Duboc, Luiz Fernando, Corrêa, Ruanny Casarim, Pérez-Mayorga, María Angélica, Brejão, Gabriel Lourenço, Mateussi, Nadayca Thayane Bonani, Castro, Míriam Aparecida de, Leitão, Rafael Pereira, Mendonça, Fernando Pereira de, Silva, Leandra Rose Palheta da, Frederico, Renata, De Marco, Paulo

“…Several hypotheses are used to explain species richness patterns. Some of them (e.g. species-area, species-energy, environment-energy, water-energy,…”
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Short-term changes in energy allocation by Hemiodontidae fish after the construction of a large reservoir (Lajeado Dam, Tocantins River) by Medeiros, Estevão Rodrigues, Pelicice, Fernando Mayer, Agostinho, Carlos Sergio, Marques, Elineide Eugênio

“…The present study investigated energy allocation patterns in three fish species from the family Hemiodontidae (Argonectes robertsi, Hemiodus microlepis, and…”
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Abiotic Factors Influencing Piranha Attacks on Netted Fish in the Upper Paraná River, Brazil by Agostinho, Carlos Sérgio, Agostinho, Angelo Antonio, Marques, Elineide Eugenio, Bini, Luis Mauricio

“…The influence of selected abiotic variables on the frequency of attack by piranhas Serrasalmus spilopleura and S. marginatus on gill‐netted fish was evaluated…”
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Genetic evidence for a species complex within the piranha Serrasalmus maculatus (Characiformes, Serrasalmidae) from three Neotropical river basins based on mitochondrial DNA sequences by Bignotto, Thaís Souto, Maniglia, Thiago Cintra, Gomes, Vivian Nunes, Oliveira, Isadora Janolio de, Agostinho, Carlos Sérgio, Prioli, Sônia Maria Alves Pinto, Prioli, Alberto José

“…Abstract Mitochondrial molecular markers (DNA sequences of D-loop, cytochrome b and cytochrome c oxidase I) were employed to characterize populations of the…”
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Seleção de presas emalhadas em redes de espera por piranhas, Serrasalmus spilopleura e S. marginatus (Pisces, Serrasalmidae) by Carlos Sérgio Agostinho, Elineide Eugenio Marques

“…A freqüência de ataque de piranhas aos peixes emalhados foi analisada a partir de capturas mensais utilizando redes de espera, expostas durante 24 horas, com…”
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Invasão da piranha Serrasalmus marginatus Valenciennes, 1847 no alto rio Paraná, Brasil (Osteichthyes, Serrasalmidae) by Carlos Sérgio Agostinho, Horácio Ferreira Júlio Junior

“…A construção da barragem de Itaipu, 150 km a jusante do salto de Sete Quedas, resultou no afogamento da barreira geográfica natural, com conseqüente mistura…”
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