Plata Basin
Mostrando 1-12 de 38 artigos, teses e dissertações.
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1. Conservation status and bio-ecology of Brycon orbignyanus (Characiformes: Bryconidae), an endemic fish species from the Paraná River basin (Brazil) threatened with extinction
RESUMO Brycon orbignyanus é uma espécie endêmica da bacia do rio da Prata, cujos estoques vêm apresentando redução relevante em todo o rio Paraná, e está classificada como espécie ameaçada. Este estudo avaliou aspectos da bio-ecologia da espécie, relacionados a essa ameaça, destacando sua distribuição, abundância, dieta e relação entre o rec
Neotrop. ichthyol.. Publicado em: 24/10/2019
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2. A new species of Farlowella (Siluriformes: Loricariidae) from the upper Bermejo River, La Plata River basin, northwestern Argentina
ABSTRACT A new species of Farlowella is described from the Bermejo River basin, in Salta and Jujuy provinces, northwestern Argentina. The new species belongs to the Farlowella nattereri species group. The new species is diagnosed by the following combination of characters: marbled rostrum, five rows of lateral plates series, relatively short snout (snout-mou
Neotrop. ichthyol.. Publicado em: 27/06/2019
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3. An integrated approach clarifies the cryptic diversity in Hypostomus Lacépède 1803 from the Lower La Plata Basin
Abstract Abstract: Hypostomus commersoni Valenciennes 1836, Hypostomus cordovae (Günther 1880) and Hypostomus laplatae (Eigenmann 1907) have been little studied since their original descriptions. This study shows a comprehensive review of these species from the Lower La Plata Basin, including their taxonomic history, distribution, color patterns, morphology
An. Acad. Bras. Ciênc.. Publicado em: 25/04/2019
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4. Geographic variation of Moenkhausia bonita (Characiformes: Characidae) in the rio de la Plata basin, with distributional comments on M. intermedia
ABSTRACT Moenkhausia bonita occurs in numerous additional localities from the Bermejo, Paraná, Paraguay, and Uruguay river basins. Given that this finding greatly expands the distributional range of M. bonita, we carried out an intraspecific comparison, using multivariate methods for 18 morphometric and eight meristic characters taken from a comprehensive s
Neotrop. ichthyol.. Publicado em: 11/03/2019
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5. Gestión de cuencas metropolitanas. Un abordaje desde el proyecto de paisaje. Caso: Arroyo del Gato, Región Metropolitana de Buenos Aires
Resumo Historicamente, a gestão de bacias hidrográficas na Região Metropolitana de Buenos Aires (RMBA) carece de uma abordagem ambiental integral, em que rios e córregos sejam valorizados a partir de seu potencial ecológico e paisagístico. Nesse sentido, a ideia de paisagem, difundida desde o continente europeu para o início do século XXI, poderia c
urbe, Rev. Bras. Gest. Urbana. Publicado em: 21/02/2019
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6. Stranded humpback whale (Megaptera novaeangliae) (Cetacea: Balaenopteridae) in Paraná River Delta, Buenos Aires Province, Argentina. Comments on the occurrence of marine mammals in the La Plata River Basin
Abstract The humpback whale (Megaptera novaeangliae) is distributed among most oceans and seas of the globe (except Mediterranean Sea). These whales migrate from feeding regions in the Antarctic waters to breeding areas in tropical and subtropical seas. Here we report the stranding of a female young humpback whale, which was founded dead in the vicinity of t
Pap. Avulsos Zool.. Publicado em: 19/03/2018
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7. Migration and brackish environment use of Prochilodus lineatus (Characiformes: Prochilodontidae) inferred by Sr:Ca ratio transects of otolith
ABSTRACT The streaked prochilod, Prochilodus lineatus, represents the most important fishery in the La Plata Basin (South America). Our objective was to analyze brackish environment use by the streaked prochilod captured from Paraná and Uruguay rivers. To accomplish this, lapillus otolith sections were analyzed for Sr:Ca with laser ablation-inductively coup
Neotrop. ichthyol.. Publicado em: 17/08/2017
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8. REDESCRIPCIÓN DE POTAMOLITHUS SUPERSULCATUS PILSBRY, 1896 (GASTROPODA, TATEIDAE) DEL SUR DE LA CUENCA DEL PLATA
ABSTRACT The genus Potamolithus Pilsbry, 1896 (Gastropoda; Tateidae), has 31 species, 22 of which are distributed in Argentina in Del Plata basin, defining the Uruguay River and the Río de la Plata as a “hotspot” of diversity in freshwater gastropods. However, most of its species has been described only by conchology characters and a few has anatomical
Pap. Avulsos Zool.. Publicado em: 2017
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9. Identification of nurseries areas of juvenile Prochilodus lineatus (Valenciennes, 1836) (Characiformes: Prochilodontidae) by scale and otolith morphometry and microchemistry
ABSTRACT The streaked prochilod Prochilodus lineatus (Valenciennes) is a commercially freshwater species from South America, distributed in the Plata basin. In the present work the morphometry (circularity, rectangularity, form factor, OL/OW and ellipticity indices) and chemistry (Sr:Ca, Ba:Ca, Zn:Ca) of lapilli otolith, and geometric morphometry of scales o
Neotrop. ichthyol.. Publicado em: 15/09/2016
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10. A new species of Gymnogeophagus Miranda Ribeiro from Uruguay (Teleostei: Cichliformes)
ABSTRACT We describe a new species of a substrate-brooding Gymnogeophagus , based on coloration characters. The new species can be distinguished from the remaining substrate-brooding species in the genus by the unique pigmentation of the dorsal fin which consists of light blue, diagonal stripes over a red background in the spiny section and a combination of
Neotrop. ichthyol.. Publicado em: 07/04/2016
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11. High taxonomic resolution as a determinant on finding new species and new records in the Río de La Plata basin: a case on Chydoridae (Crustacea: Branchiopoda: Cladocera)
ABSTRACTRecent worldwide taxonomical research on Cladocera is discovering a number of new species but hardly in South America. The Río de La Plata is the second largest basin in the continent and the knowledge on cladocerans of the different sub-basins is uneven. The recent increase in the number of cladocerans species worldwide inspired this survey in the
Nauplius. Publicado em: 2015-06
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12. Taxonomy of Pimelodus brevis Marini, Nichols & La Monte, 1933 (Siluriformes: Pimelodidae), an uncertain species from the rio Paraná basin
Pimelodus brevisMarini, Nichols & La Monte, 1933 foi descrita do rio de la Plata, San Fernando, Argentina, com base apenas no holótipo, que está desaparecido desde a década de 1960. Esta espécie é considerada válida, a despeito da ausência de espécimes-testemunhos em coleções. Uma análise compreendendo material da bacia do rio Paraná forneceu esp
Neotrop. ichthyol.. Publicado em: 2014-12