Iguacu River
Mostrando 13-24 de 38 artigos, teses e dissertações.
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13. Coscinodiscophyceae and Fragilariophyceae (Diatomeae) in the Iguaçu River, Paraná, Brazil
A taxonomic survey was carried out on Coscinodiscophyceae and Fragilariophyceae found in the Iguaçu River catchment area within Iguaçu National Park, in the state of Paraná, Brazil. Between September 2007 and August 2008, we collected 24 samples from two stations on the Iguaçu River, upstream and downstream of the falls. We identified 37 taxa, including
Acta Bot. Bras.. Publicado em: 2014-03
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14. Ecomorphological differences between Rhamdia (Bleeker, 1858) populations from the Iguaçu River basin
Evidências morfológicas e genéticas sugerem que Rhamdia branneri e Rhamdia voulezi, atualmente consideradas sinônimas de Rhamdia quelen, são, de fato, duas espécies válidas. Adicionalmente, na revisão taxonômica de R. quelen nenhum exemplar do rio Iguaçu foi examinado, o que torna a sinonímia duvidosa. Considerando as duas espécies como válidas,
Biota Neotrop.. Publicado em: 2013-12
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15. Diatoms (Bacillariophyceae) of Iguaçu National Park, Foz do Iguaçu, Brazil
This study represents a taxonomic survey of class Bacillariophyceae diatoms found in samples collected in the Iguaçu River (Iguaçu National Park, municipality of Foz do Iguaçu, in the state of Paraná, Brazil) between August 2007 and July 2008. Two sampling stations were utilized, the first located upstream of Iguaçu Falls (Cais Bananeiras Station) and s
Acta Bot. Bras.. Publicado em: 2013-03
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16. Modelo de simulação em base horária da vazão na estação fluviométrica da régua-11 = : Simulation model in hourly basis of the flow at the fluviometric station R-11 / Simulation model in hourly basis of the flow at the fluviometric station R-11
The fluviometric station of rule 11, or simply R-11, is situated downstream from the confluence of the Paraná, Iguaçu, Acaray and Monday rivers, about 20 km away from Itaipu Hydroelectric Power Plant on the border between Brazil, Paraguay and Argentina. This region is subject to restrictions imposed by international agreements such as the implementation of
IBICT - Instituto Brasileiro de Informação em Ciência e Tecnologia. Publicado em: 31/08/2012
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17. Reproductive tactics used by the Lambari Astyanax aff. fasciatus in three water supply reservoirs in the same geographic region of the upper Iguaçu River
A espécie Astyanax aff. fasciatus foi investigada quanto a diferenças nas táticas reprodutivas em três reservatórios de diferentes idades (Iraí, Piraquara e Passaúna), localizados em uma mesma região geográfica. O material biológico foi obtido através de coletas mensais realizadas de julho/2006 a junho/2007. Evidenciou-se maior atividade reproduti
Neotropical Ichthyology. Publicado em: 2010
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18. A utilização de tecnologias digitais de geoprocessamento na identificação de unidades de paisagem na bacia hidrográfica do rio Iguaçu-Sarapuí (RJ) / The use of gis technology in identification of landscape units in the Iguaçu river
The Iguaçu River Falls is part of the river basin of Guanabara Bay. Its drainage area, with about 726 km2, corresponds to approximately 20% of the total area of contribution to the Bay, the order of 4600 km2. The municipalities covered by the Iguaçu River basin are: Nova Iguaçu, Duque de Caxias, Belford Roxo, São João de Meriti, Nilópolis, mosque and a
Publicado em: 2009
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19. Variáveis reprodutivas do Surubim do Iguacu (Steindachneridion melanodermatum) e comparação do desenvolvimento do ontogenetico com o jundiá (Rhamdia quelen)
Species of large size and commercial value are found in the basin of the Iguaçu, with the highlights, representatives of the order Siluriformes. The genus Steindachneridion belongs to the order Siluriformes and has restricted distribution of some rivers basins of South America. The endemic Iguaçus surubim (Steindachneridion melanodermatum) as well as other
Publicado em: 2009
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20. Complexidade dinâmica: água, expansão urbana e espaços livres públicos - o processo de construção da paisagem do Parque Iguaçu - Curitiba - PR / Dynamic complexity: water, urban expansion and public open spaces the process of Iguaçu Park landscape construction, Curitiba-PR.
The process of projecting, building and managing a public urban park, inside an expanding metropolitan area involves a series of factors that should be analyzed under various points of view. Contemporary society has been through intensive changes within the last 40 years. Urban population has surpassed rural, establishing a new way of life; greater attention
Publicado em: 2009
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21. Population analysis of a chromosome polymorphism in Astyanax (Teleostei, Characiformes) species endemic to the Iguaçu River
Chromosomal analyses were performed in the fish Astyanax sp.D collected from three different points: two streams from the right bank and one from the left bank of the Upper Iguaçu River, Paraná State, Brazil. The individuals from all localities possess 2n = 50 chromosomes and a FN = 84 (4m+24sm+6st+16a). The C-banding pattern was similar in all populations
Genetics and Molecular Biology. Publicado em: 2008
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22. NAVEGANDO NA MEMÓRIA: O PATRIMÔNIO CULTURAL DA EXTINTA HIDROVIA DO RIO IGUAÇU
This work aims to demonstrate the existence of a local identity related to the material and immaterial inheritance that has been built from the territorial configuration that the extinct Iguaçu River Waterway, in the State of Parana, Brazil, had provided for the organization of the space in question. It is analyzed the current range of this waterway, using
Publicado em: 2008
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23. Karyotypic differentiation through chromosome fusion and number reduction in Imparfinis hollandi (Ostariophysi, Heptapteridae)
The Neotropical Heptapteridae fish Imparfinis hollandi, endemic to the Iguaçu River Basin (Brazil), was cytogenetically analyzed and the diploid chromosome number of 2n = 42 chromosomes was determined (22m + 10sm + 10st), the lowest diploid number in this genus and family. Like other Heptapteridae species, only one NOR-bearing chromosome pair was detected b
Genetics and Molecular Biology. Publicado em: 2008
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24. Estudos evolutivos no gênero Astyanax (Pisces, Characidae) / Evolutionary studies in the Astyanax genus (Pisces, Characidae).
Astyanax is one of the species-richest genera within the order Characiformes. More than 100 representatives are widespread throughout nearly all the Neotropical region, inhabiting an array of environments, such as mountain areas, lotic and lentic river portions, lake systems and headwaters. This fish group has been a target of chromosomal studies for over 30
Publicado em: 2008