Negro River
Mostrando 1-12 de 74 artigos, teses e dissertações.
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1. Filling a gap in the distribution of Taulidesmella tabatinga (Polydesmida, Pyrgodesmidae): a new record from the upper Amazon River, Brazil
RESUMO A espécie de Diplopoda Taulidesmella tabatinga é conhecida apenas da região de fronteira entre o Brasil com Peru e Colômbia, Iquitos (Peru), e arredores de Manaus (Brasil). Com base em material coletado recentemente durante a estação chuvosa em 2014 ao longo do Rio Amazonas a montante da confluência com o Rio Negro, nós reportamos um novo regi
Acta Amazonica. Publicado em: 2022
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2. Interaction of Pb, Ni and Cd with Aquatic Humic Substances of Amazonian Blackwater Rivers
In this study, the extraction and characterization of aquatic humic substances (AHS) from two blackwater rivers in the Amazon basin was carried out in order to assess the seasonal effects in the AHS structure. In addition, an investigation of the complexing capacities (CC) of the structures containing the metal ions CdII, NiII and PbII was also done. The cha
J. Braz. Chem. Soc.. Publicado em: 2021-02
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3. Amaranth in southernmost latitudes: plant density under irrigation in Patagonia, Argentina
ABSTRACT In Argentina there have been few evaluations of Andean pseudocereal plantings. This study explored the response of Amaranthus cruentus cv Mexicano to different plant densities under furrow irrigation in the lower valley of the river Negro, Patagonia, Argentina. The experimental design consisted of 3 blocks with randomized treatments (subplots), each
Rev. Ceres. Publicado em: 2020-04
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4. Ornamental fishing in the region of Barcelos, Amazonas: socioeconomic description and scenario of activity in the view of “piabeiros”
Resumo A bacia do rio Negro é considerada a maior área de extrativismo de peixes ornamentais do Brasil. Esta área possui importância fundamental para as populações da Amazônia. O presente estudo objetivou descrever o perfil socioeconômico de pescadores conhecidos como “piabeiros” no município de Barcelos, bem como a pesca ornamental, área de pe
Braz. J. Biol.. Publicado em: 07/10/2019
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5. Stock assessment of the peacock bass Cichla temensis (Humboldt, 1821), an important fishing resource from the middle Negro river, Amazonas, Brazil
Resumo O tucunaré Cichla temensis é uma importante espécie de peixe da bacia Amazônica, uma vez que esta espécie é simultaneamente explotada pela pesca comercial e de subsistência. Além disso, é preferida pelos pescadores esportivos que atuam na região do rio Negro, o segundo maior afluente do rio Amazonas. Foram usados dados de pescarias experimen
Braz. J. Biol.. Publicado em: 26/09/2019
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6. Morphological sexual maturity of the freshwater anomuran crab Aegla parana (Crustacea, Decapoda, Aeglidae) from Negro River Sub-basin, Upper Iguaçu Basin, southern Brazil
RESUMO O comprimento da carapaça (CL) no início da maturidade sexual morfológica (MSM) em Aegla paranaSchmitt, 1942foi estimado em uma população que ocorre na Sub-bacia do Rio Negro, Bacia do Alto Iguaçu, sul do Brasil. Os animais foram capturados com rede Surber e com armadilhas iscadas no Rio Negro e no seu afluente Rio Totó, em dezembro/2017, junho
Iheringia, Sér. Zool.. Publicado em: 05/08/2019
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7. Composition, abundance, and diversity of limnetic cladocerans (Crustacea: Anomopoda and Ctenopoda) in a black-water lake in the Negro River basin, Amazonas State, Brazil
Abstract For the past 10 years, studies have contributed greatly to knowledge regarding the composition and distribution of the planktonic cladocerans of Tupé Lake in Amazonas State, Brazil, but comparisons between these studies have not been made, and this would increase the comprehension of the ecology of these organisms and their environment. Periodicall
Nauplius. Publicado em: 13/09/2018
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8. Nests of “caba-leão” wasps (Sceliphron sp., Sphecidae) used in traditional medicine by riverine communities of the Jaú and Unini Rivers, Amazon, Brazil: ethnopharmacological, chemical and mineralogical aspects
ABSTRACT This research contributes to the study of substances present in homemade remedies used by the riverine communities of the Amazon, which are the result of insect–mineral–vegetable oil-interaction. The results of the analyses show the main components (inorganic and organic components) of the “caba-leão” wasps nests (Sceliphron sp., Sphecidae)
Rev. bras. farmacogn.. Publicado em: 2018-06
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9. The expression of neotectonics in the Pantanal da Nhecolândia, State of Mato Grosso do Sul - Brazil
ABSTRACT Pantanal da Nhecolândia is one of the most well-preserved areas in the State of Mato Grosso do Sul. Located in the southern part of the Taquari River megafan, it is in tectonic contact with the fault escarpments of the Maracaju-Campo Grande plateaus to the east and with the fault escarpments of the Bodoquena plateau to the west, which continue to n
An. Acad. Bras. Ciênc.. Publicado em: 2018-04
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10. Lutzomyia umbratilis from an area south of the Negro River is refractory to in vitro interaction with Leishmania guyanensis
BACKGROUND Lutzomyia umbratilis, the vector for Leishmania guyanensis in northern South America, has been found naturally infected with L. guyanensis only in areas north of the Negro and Amazon rivers. While populations of this sand fly species are also found in areas south of these rivers, these populations have never been reported to be infected and/or tr
Mem. Inst. Oswaldo Cruz. Publicado em: 2018-03
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11. Surveillance of seroepidemiology and morbidity of Chagas disease in the Negro River, Brazilian Amazon
BACKGROUND Chagas disease in the Brazilian Amazon Region was previously regarded as an enzootic disease of wild animals. More recently, in situations where humans have penetrated the wild ecotope or where triatomines and/or wild animals (marsupials) have invaded human homes resulting in disease transmission, Chagas disease has come to be regarded as an anth
Mem. Inst. Oswaldo Cruz. Publicado em: 2018-01
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12. Morphological variation among populations of Hemigrammus coeruleus (Characiformes: Characidae) in a Negro River tributary, Brazilian Amazon
RESUMO Neste estudo foram explorados os padrões de variação fenotípica em Hemigrammus coeruleus da bacia do rio Unini, um rio de água preta na Amazônia brasileira. Métodos de morfometria geométrica foram aplicados para avaliar as variações na forma do corpo entre populações provenientes de quatro tributários (UN2-UN5). Os resultados mostraram au
Neotrop. ichthyol.. Publicado em: 30/03/2017