Produção Nacional
Revisado por pares
Graziela Custodio Balassa, Rosemara Fugi, Norma Segatti Hahn, André Beal Galina,
Diet of Anostomidae species (Teleostei, Characiformes) in the influence area of Manso Reservoir, Mato Grosso, Brazil.The diet of four species of Anostomidae (Leporinus friderici Bloch, 1794, L. striatus Kner, 1858, L. elongatus Valenciennes, 1849 and Leporinus sp.) were investigated in the Manso Reservoir, Mato Grosso State, Brazil.Fish were sampled in three sites: upriver, in the main body of the reservoir, and below the dam.Were analized 276 stomachs.The diet was evaluated using the frequency of ...
Tópico(s): Fish Ecology and Management Studies
2004 - Fundación Zoobotánica de Rio Grande do Sul | Iheringia Série Zoologia
Produção Nacional
Revisado por pares
Geuza Cantanhêde, Norma Segatti Hahn, Éder André Gubiani, Rosemara Fugi,
Abstract – Diet composition of Pterodoras granulosus was investigated from June 2004 to June 2005 in the Upper Paraná River floodplain, following invasion by two mollusc species Corbicula fluminea and Limnoperna fortunei . Stomach and intestinal contents analysis showed spatial differences in the diet composition. In the Baía River, P. granulosus diet consisted mainly of C. fluminea , whereas plant items dominated in the Ivinheima River, and L. fortunei was the most important food in the Paraná River. ...
Tópico(s): Fish Ecology and Management Studies
2007 - Wiley | Ecology Of Freshwater Fish
Norma Segatti Hahn, André Beal Galina,
The aim of this paper is to determine the diet of two species of Triportheus (T. paranensis e T. nematurus), in Manso Reservoir and lagoons of Cuiabá River, MT. Samples were monthly taken from March 2000 to February 2001. Stomach contents were analyzed by the occurrence and volumetric methods, and data were graphically grouped by Costello Index. The diet of T. nematurus was composed of terrestrial (Hymenoptera and Coleoptera) and aquatic insects (larvae of Diptera) in the reservoir. In lagoons it consumed ...
Tópico(s): Aquatic Ecosystems and Biodiversity
2003 - Editora da Universidade Estadual de Maringá (Eduem) | Acta Scientiarum Biological Sciences
Produção Nacional
Geuza Cantanhêde, Norma Segatti Hahn, Rosemara Fugi, Éder André Gubiani,
The goal of this study was to investigate the alterations of diet of a piscivorous fish (Acestrorhynchus pantaneiro) following changes in abundance of a forage fish (Moenkhausia dichroura) during the trophic upsurge stage in a reservoir. Fish samplings were taken monthly in the Manso Reservoir (State of Mato Grosso, Brazil) from March 2000 to February 2001 (period I) and from March 2003 to February 2004 (period II). The abundance of Moenkhausia dichroura in the reservoir was significantly different in ...
Tópico(s): Fish Ecology and Management Studies
2008 - Sociedade Brasileira de Ictiologia | Neotropical Ichthyology
Produção Nacional
Revisado por pares
Natália Carniatto, Rosemara Fugi, Geuza Cantanhêde, Éder André Gubiani, Norma Segatti Hahn,
AIM: In this paper we assessed the effects of flooding (low and high water period) on the feeding activity and diet composition of Serrapinus notomelas in patches of the macrophyte Eichhornia azurea in a shallow floodplain lake (upper Paraná River Floodplain, Brazil). We also assessed the variations of diet composition and feeding activity along the diel cycle. METHODS: Traps were used to catch the fish inside of macrophyte patches monthly from June/2007 to May/2008. A total of 1038 stomachs were ...
Tópico(s): Fish Biology and Ecology Studies
2013 - Associação Brasileira de Limnologia | Acta Limnologica Brasiliensia
Produção Nacional
André Nogueira Bozza, Norma Segatti Hahn,
Este estudo teve como objetivo avaliar o uso dos recursos alimentares por indivíduos imaturos e adultos de Acestrorhynchus lacustris, Hemisorubim platyrhynchos, Hoplias aff. malabaricus, Plagioscion squamosissimus, Pseudoplatystoma corruscans e Salminus brasiliensis, da planície de inundação do alto Rio Paraná, coletados trimestralmente entre março de 2007 e dezembro de 2008. Foi avaliada a composição quantitativa da dieta através da obtenção do volume das presas (% volume) e amplitude de nicho trófico ...
Tópico(s): Fish Ecology and Management Studies
2010 - Fundação de Amparo à Pesquisa do Estado de SP | Biota Neopropica/Biota Neotropica
Produção Nacional
Revisado por pares
André Beal Galina, Norma Segatti Hahn,
Fishes are very good exploiter of the aquatic environment that have, sometimes, unavailable organisms to sampling gears. Considering that the fishes feed on the most abundant and available items, the purpose of this work was to verify the abundance and the seasonal variations of the different insect taxons in the area of the Manso Reservoir, MT, through the diet of Triportheus nematurus (n=96) and Triportheus paranensis (n=190). We recorded 11 orders represented by adults and larval stages of aquatic ...
Tópico(s): Aquatic Ecosystems and Biodiversity
2004 - | Revista Brasileira de Zoociências
... questions and comments by Bruno Cautrès, John Curtis, André Freire, Thomas Gschwend, Pedro Magalhaes, Renato Mannheimer, Franz U. Pappi, Andrea Römmele, Paolo Segatti, and Andreas M. Wüst, which is all gratefully ...
Tópico(s): Populism, Right-Wing Movements
2005 - Taylor & Francis | West European Politics
André Freire, Andrea Pedrazzani, Emmanouil Tsatsanis, Xavier Coller, Paolo Segatti,
This article looks at how well different age groups are represented in the parliaments of Portugal, Spain, Italy and Greece. We focus on three periods – before, during and after the ‘Great Recession’ – assuming the economic turmoil has generated new demands channelled by new parties that have recently entered parliament or have had a surge during the crisis. Data comes from mass surveys carried out in each country and from MP biographies. The findings reveal relevant changes in Spain and Italy, with ...
Tópico(s): Electoral Systems and Political Participation
2021 - Taylor & Francis | South European Society & Politics