Karst
Mostrando 1-12 de 53 artigos, teses e dissertações.
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1. ENHANCED REMOVAL OF PERSISTENT CONTAMINANTS AND TOXICITY REDUCTION THROUGH THE APPLICATION OF A TRIPLE-STAGE FENTON PROCESS TO SANITARY LANDFILL LEACHATES FROM YUCATAN, MEXICO
Sanitary landfill leachate (SLL) is a mixture of highly toxic and recalcitrant pollutants that threatens the water quality of the Yucatán Peninsula karst aquifer, one of the most extensive aquifers on the planet. To reduce the adverse environmental impacts of this wastewater, a triple-stage Fenton process (FP) was applied in an old SLL. Removal efficiencies
Química Nova. Publicado em: 2022
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2. Soft-bodied benthic algae in pristine Brazilian streams: from acid to karst
ABSTRACT This study evaluated soft-bodied benthic algae from seven streams located in protected areas of central Brazil (Parque Nacional de Brasília, Parque Nacional da Chapada dos Veadeiros and Parque Estadual de Terra Ronca), and related them to abiotic factors. We addressed the following questions: A) how algal community structure in Cerrado streams is i
Acta Bot. Bras.. Publicado em: 12/09/2019
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3. Differences between caves with and without bats in a Brazilian karst habitat
ABSTRACT. Since bats shelter in roosts during their period of diurnal inactivity, the quality and availability of roosts are important aspects of their ecology. Karst areas have great potential for the availability of day roosts, since they form caves, which serve as bat shelters. Here we characterize the caves used by bats in a preserved karst area of South
Zoologia (Curitiba). Publicado em: 19/10/2017
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4. Influence of substrate on the richness and composition of Neotropical cave fauna
ABSTRACT The food base in the subterranean environment consists mainly of allochthonous materials. In this environment the resources are distributed generally in a heterogeneous dispersed way and the distribution of resources and their availability determine where the terrestrial invertebrates will reside, which is important for understanding ecological rela
An. Acad. Bras. Ciênc.. Publicado em: 31/08/2017
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5. A new species of stygobitic aeglid from lentic subterranean waters in southeastern Brazil, with an unusual morphological trait: short pleopods in adult males
Abstract Aegla charon n. sp. is endemic to the “Lago Subterrâneo” cave from the Alto Ribeira karst region, southeastern Brazil. The most remarkable morphological trait observed in the new species was the presence of partially developed pair of uniramous pleopods 2‒5 in adult male specimens, whereas the absence of these pleonal appendages is the genera
Nauplius. Publicado em: 22/06/2017
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6. Transmissivity of Aquifer by Capture Zone Method: An Application in the Sete Lagoas Karst Aquifer, MG, Brazil
ABSTRACT Transmissivity is an important hydraulic parameter to determine the amount of water passed horizontally across a given saturated thickness of an aquifer. The techniques to quantify this parameter, such as grain size analyses or pumping tests, can have limitations of time/spatial scale, viability, or economically. One technique that can be used, but
An. Acad. Bras. Ciênc.. Publicado em: 2017-03
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7. Three new species of terrestrial isopods (Crustacea, Isopoda, Oniscidea) from Brazilian caves
ABSTRACT A second amphibian species of terrestrial isopods in the genusXangoniscus Campos-Filho, Araujo & Taiti, 2014 and two new species of Trichorhina Budde-Lund, 1908 are described from the Bambuí karst area in the state of Minas Gerais. Xangoniscus odara n. sp. and Trichorhina cipoensis n. sp. were collected in Lapa do Cipó cave, municipality of Itacar
Nauplius. Publicado em: 23/02/2016
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8. A new species of Trichorhina Budde-Lund, 1908 (Isopoda: Oniscidea: Platyarthridae) from Paraná caves, southern Brazil
ABSTRACT The genus Trichorhina Budde-Lund, 1908 in Brazil includes 22 described species, four of which occur in caves. The present work aims at describing the first cave species for the state of Paraná. Trichorhina kaingangi n. sp. was collected in Água Boa cave, municipally of Almirante Tamandaré, and Ermida Paiol do Alto cave, municipally of Adrianópol
Nauplius. Publicado em: 2015-12
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9. Reproductive aspects of Hyalella carstica (Amphipoda: Hyalellidae) in a natural environment in southeastern Brazil
Abstract The reproductive aspects of populations are important determinants of their ability to maintain themselves throughout time. In the case of amphipods from the genus Hyalella Smith, 1874, the reproductive period is easily determined by the presence of ovigerous females and pre-copula pairs in the population. This study evaluated the fecundity, pairing
Nauplius. Publicado em: 2015-12
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10. Relação da espessura do músculo adutor do polegar e avaliação subjetiva global em unidade de terapia intensiva cardiológica
RESUMO Objetivo: Verificar a relação do teste de espessura do músculo adutor do polegar com avaliação subjetiva global e correlacioná-lo a outros métodos antropométricos. Métodos: Estudo transversal observacional realizado em unidade de terapia intensiva de um hospital de cardiologia no Estado do Rio Grande do Sul. Os pacientes internados foram
Rev. bras. ter. intensiva. Publicado em: 2015-12
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11. Population density and habitat of an endangered cave fish Eigenmannia vicentespelaea Triques, 1996 (Ostariophysi: Gymnotiformes) from a karst area in central Brazil
O peixe troglóbio Eigenmannia vicentespelaea, endêmico de um único sistema de cavernas e incluído na Lista Brasileira de Fauna Ameaçada foi estudado em relação às densidades populacionais e hábitat. Para comparação utilizamos a espécie epígea E. trilineata. Verificamos se as densidades populacionais registradas para E. vicentespelaea seguem o pa
Neotrop. ichthyol.. Publicado em: 2015-03
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12. Ituglanis boticario, a new troglomorphic catfish (Teleostei: Siluriformes: Trichomycteridae) from Mambaí karst area, central Brazil
A new subterranean and troglomorphic species of Ituglanis Costa and Bockmann, 1993 is described from the carbonatic karst area of northeastern Goiás state, upper Tocantins River Basin, central Brazil, representing the sixth subterranean species of the genus described from the same region. Ituglanis boticario sp. nov. is diagnosed by a combination of unusual
Zoologia (Curitiba). Publicado em: 2014-12