|
|
|
Registros recuperados: 14 | |
|
| |
|
|
Langeani,Francisco; Castro,Ricardo Macedo Corrêa e; Oyakawa,Osvaldo Takeshi; Shibatta,Oscar Akio; Pavanelli,Carla Simone; Casatti,Lilian. |
É apresentada uma síntese sobre os peixes do Alto Paraná, com base em dados de coleções, dados de literatura e novas coletas. Trezentas e dez espécies, de 11 ordens e 38 famílias, são referidas para a drenagem, aumentando significativamente números anteriores. Dentre as espécies da área, 236 (76,1%) são autóctones, 67 (21,6%) alóctones e sete (2,3%) exóticas. As principais causas de ocorrência de espécies não nativas (alóctones e exóticas) foram a dispersão a partir do baixo Paraná, após a construção do Reservatório de Itaipu e o escape de pisciculturas. A maior parte das espécies referidas (65%) tem porte pequeno, sendo menor que 21 cm de comprimento; dentre essas, a maioria ocorre apenas em riachos e cabeceiras. Apesar da ictiofauna do Alto Paraná ser... |
Tipo: Info:eu-repo/semantics/article |
Palavras-chave: Peixes; Água doce; Sudeste brasileiro; Inventário; Transposição. |
Ano: 2007 |
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1676-06032007000300020 |
| |
|
| |
|
|
Santos,Emanoel Oliveira dos; Deon,Geize Aparecida; Almeida,Rafael Bonfim de; Oliveira,Ezequiel Aguiar de; Nogaroto,Viviane; Silva,Hugmar Pains da; Pavanelli,Carla Simone; Cestari,Marta Margarete; Bertollo,Luiz Antonio Carlos; Moreira-Filho,Orlando; Vicari,Marcelo Ricardo. |
Abstract Parodontidae is a small group of fish and some species are particularly difficult to identify due to the lack of sufficiently consistent morphological traits. Cytogenetically, the species possess 2n = 54 chromosomes and are either sex-homomorphic or sex-heteromorphic (regarding its chromosomes). We evaluated data on color, tooth morphology, cytogenetics, and mitochondrial markers (COI) in Apareiodon specimens from the Aripuanã River (Amazon basin) and the results were compared to other congeneric taxa. Morphological results show an overlap of body color and tooth morphology to other known Apareiodon. The cytogenetics data showed that the 2n = 54 chromosomes, 50 m/sm + 4 st and, a ZZ/ZW sex chromosome system in Apareiodon sp. are common to other... |
Tipo: Info:eu-repo/semantics/article |
Palavras-chave: Chromosomal differentiation; Hidden diversity; Repetitive DNA; Sex chromosomes. |
Ano: 2019 |
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1415-47572019000300365 |
| |
|
|
Júlio Júnior,Horácio Ferreira; Tós,Claudenice Dei; Agostinho,Ângelo Antonio; Pavanelli,Carla Simone. |
Based on long-term studies in the upper rio Paraná basin, in addition to a broad review of literature and other information, we were able to identify 33 species of native fishes in the lower rio Paraná basin that successfully colonized the upper rio Paraná after Itaipu impoundment, that flooded the natural geographic barrier constituted by the Sete Quedas Falls. These species belong to six Orders, encompassing two of Myliobatiformes, six of Characiformes, 17 of Siluriformes, six of Gymnotiformes, one of Perciformes, and one of Pleuronectiformes. Extensive remarks regarding each species, including their influence upon the native assemblage, in addition to comments on other non-indigenous species, are also provided. We conclude that, in spite of its... |
Tipo: Info:eu-repo/semantics/article |
Palavras-chave: Invasive species; Biodiversity; Reservoir Impacts; Ecoregion; Sete Quedas Falls. |
Ano: 2009 |
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1679-62252009000400021 |
| |
|
| |
|
|
Ota,Renata Rúbia; Deprá,Gabriel de Carvalho; Graça,Weferson Júnio da; Pavanelli,Carla Simone. |
ABSTRACT The book “Peixes da planície de inundação do alto rio Paraná e áreas adjacentes” represents the most cohesive data compilation for the rio Paraná floodplain. However, considering the dynamicity of the taxonomy of freshwater fishes, several new records and taxonomic changes occurred along the past years. Therefore, the results of that publication were revisited, providing an update of the species list, their taxonomic status, records and geographic distribution, and also new keys for genera and species. The species included were those recorded in the rio Paraná basin, from the mouth of the rio Paranapanema to the Itaipu Reservoir, following the general methodology presented in the book. A total of 10 orders, 41 families, 126 genera, and 211 species... |
Tipo: Info:eu-repo/semantics/article |
Palavras-chave: Geographical distribution; Ichthyological diversity; Key of identification; Non-native species; Taxonomy. |
Ano: 2018 |
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1679-62252018000200202 |
| |
|
| |
|
|
Pavanelli,Carla Simone; Bifi,Alessandro Gasparetto. |
A new species of Tatia is described from the lower rio Iguaçu basin, Paraná State, Brazil. The new species is distinguishable from congeners by having large, irregular pale blotches over dark brown base coloration, absent longitudinal stripe, caudal fin with round to striate dark brown spots over light base in adults or entirely dark in juveniles, and by having a long humeral process. Sexual dimorphism of the new species is marked by differences among genital and urinary apertures, size proportions between upper and lower lobe of caudal fin, and size, width and presence of antrorse and retrorse spines on anal-fin rays. |
Tipo: Info:eu-repo/semantics/article |
Palavras-chave: Neotropical; Freshwater fish; Sexual dimorphism; Catfish. |
Ano: 2009 |
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1679-62252009000200010 |
| |
|
| |
|
|
Rocha,Marcelo Salles; Pavanelli,Carla Simone. |
Pimelodus brevisMarini, Nichols & La Monte, 1933 was described from the río de la Plata, Departamento San Fernando, Argentina, based only on the holotype, which is missing since 1960s. This species has been cited in the literature and is considered valid despite of no voucher specimen has been found in museum. A taxonomic analysis comprising material from the rio Paraná basin provided additional specimens that made it possible to demonstrate the identity of P. brevis. Based on the original description and illustration of the holotype, we performed an allometric analysis and then we were able to compare the data with the similar sympatric congeners. Those comparisons allowed us to conclude that P. brevisis a junior synonym of P. argenteusPerugia, 1891,... |
Tipo: Info:eu-repo/semantics/article |
|
Ano: 2014 |
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1679-62252014000400755 |
| |
|
| |
|
| |
|
| |
Registros recuperados: 14 | |
|
|
|