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Registros recuperados: 58
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Abundância e distribuição de Aeglidae (Crustacea: Anomura) em função do uso da terra na bacia hidrográfica do Rio Jacutinga, Rio Grande do Sul, Brasil Rev. Bras. Zool.
Trevisan,André; Hepp,Luiz Ubiratan; Santos,Sandro.
This study investigated the influence of land use and occupation on the density and distribution of aeglids in the hydrographic basin of the Jacutinga river (northern state of Rio Grande do Sul, Brazil). Sampling was carried out during the summer and winter of 2004, at 12 sites distributed in river spring, agriculture, grazing, and urban areas. Animals were collected using a Surber sampler. An analysis of variance (ANOVA) was conducted to evaluate differences in the density of species in each land use and sampling period. Biological data were classified using cluster analysis (Euclidian distance; UPGMA). A total of 226 aeglids were captured, including 167 (78.89%) specimens of Aegla platensis Schmitt, 1942 and 59 (26.11%) specimens of A. singularis...
Tipo: Info:eu-repo/semantics/article Palavras-chave: Aegla platensis; Aegla singularis; Bioindicators.
Ano: 2009 URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1984-46702009000300006
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Analysis of enzymes as bioindicators on the combinatory effects of the mixtures of diflubenzuron and p-chloroaniline in tilapia in the presence of soil. Repositório Alice
DANTZGER, D. D.; JONSSON, C. M.; AOYAMA, H..
Introduction. Oreochromis niloticus (Nile tilapia) is the most produced and consumed fish in Brazil. Many fish farming use Diflubenzuron (DFB) as insecticide to control parasites responsible for diseases in these fish. This insecticide degradation generates p-chloroaniline (PCA), a potentially carcinogenic and mutagenic compound. Objectives The objective of this study was to evaluate the enzymes catalase (CAT) and transaminases (TGO and TGP) as water toxicity bioindicators using as experimental model the tilapia fish, exposed for 96 h to different combinatory concentrations of DFB and PCA mixtures, in presence of soil. Material and Methods. Samples of tilapia liver were homogenized and the supernatant was used for the biochemical analyses of enzyme...
Tipo: Resumo em anais de congresso (ALICE) Palavras-chave: P-chloroaniline; Bioindicators; Enzima; Diflubenzuron.
Ano: 2016 URL: http://www.alice.cnptia.embrapa.br/handle/doc/1071398
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Atributos microbiológicos do solo em sistemas de integração lavoura-pecuária no munícipio de Três Lagoas, MS. Infoteca-e
RIBEIRO, I. dos S.; MERCANTE, F. M..
2016
Tipo: Outras publicações técnicas (INFOTECA-E) Palavras-chave: Biomassa microbiana; Qualidade do solo; Bioindicador; Microbial biomass; Soil quality; Bioindicators.
Ano: 2016 URL: http://www.infoteca.cnptia.embrapa.br/handle/doc/1054018
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Avaliação da comunidade macrobentônica em viveiros escavados com criação de tilápia e sua relação com a qualidade de água. Repositório Alice
VALDEVINO, K. B.; LOSEKANN, M. E.; SONODA, K. C.; CARVALHO, M. P.; SILVA, M. S. G. M. e.
O biomonitoramento é uma ferramenta utilizada para avaliar mudanças ocorridas na qualidade das águas de lagos e rios, através dos organismos vivos presentes naquele ambiente. Os macroinvertebrados bentônicos são classificados quanto à sua tolerância a mudanças na qualidade da água, podendo ser encontrados em ambientes naturais, alterados ou impactados. Na piscicultura, o biomonitoramento pode ser utilizado para avaliar as alterações ambientais provenientes de impactos externos ao sistema de produção ou para o diagnóstico da qualidade da água dentro da propriedade em busca da implantação de Boas Práticas de Manejo. Neste estudo, foram utilizados macroinvertebrados bentônicos como ferramenta para o biomonitoramento em viveiros escavados com produção de...
Tipo: Artigo em anais de congresso (ALICE) Palavras-chave: Biomonitoramento; Macroinvertebrados; Bioindicadores; Biomonitoring; Macroinvertebrates; Bioindicators; Piscicultura; Qualidade da água; Fish culture; Water quality; Indicator species.
Ano: 2017 URL: http://www.alice.cnptia.embrapa.br/alice/handle/doc/1084381
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Benthic macroinvertebrate assemblages structure in two headwater streams, south-eastern Brazil Zoologia
Tupinambás,Taynan H.; Callisto,Marcos; Santos,Gilmar B..
From December 2003 to September 2004, benthic macroinvertebrates (BM), fishes, water and sediment were collected quarterly at six stations in two streams of the upper São Francisco River basin, south-eastern Brazil. We evaluated the ecological conditions, habitat diversity, water quality, composition and structure of BM communities, as well as the food habits of the local fish fauna. By applying a protocol for rapid characterization of ecological conditions and habitat diversity, three of the sampled localities were classified as "pristine" while the others stations were considered "altered". A well oxygenated water with near neutral pH and low electric conductivity (< 0.01 mS/cm) and nutrient concentrations (< 0.08 mg/l total P and < 0.90 mg/l...
Tipo: Info:eu-repo/semantics/article Palavras-chave: Bioindicators; Ecological conditions; Human activities; Stomach contents; Water quality.
Ano: 2007 URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0101-81752007000400005
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Bioindicadores para avaliação da qualidade dos solos tropicais: utopia ou realidade? Infoteca-e
MENDES, I. de C.; CUNHA, M. H. da; REIS JUNIOR, F. B. dos; FERNANDES, M. F.; CHAER, G. M.; MERCANTE, F. M.; ZILLI, J. E..
Desde 1998, além dos estudos de fixação biológica do nitrogênio e micorriza, o grupo de microbiologia do solo da Embrapa Cerrados iniciou suas pesquisas em ecologia microbiana de solos de Cerrado conseguindo avanços significativos na caracterização da biomassa, atividade e diversidade microbiana dos solos desse bioma. Existia, até então, um desconhecimento sobre as propriedades microbiológicas dos solos de Cerrado sob vegetação nativa, sobre os impactos de sistemas agrícolas no funcionamento dos processos microbiológicos desses solos e de suas consequências na manutenção, melhoria ou perda da qualidade dos mesmos, após sua incorporação à agricultura. Durante esses 11 anos, o grupo sempre esteve presente proferindo palestras nos mais importantes congressos...
Tipo: Documentos (INFOTECA-E) Palavras-chave: Qualidade do solo; Bioindicador; Solo tropical; Tropical soil; Soil quality; Bioindicators.
Ano: 2009 URL: http://www.infoteca.cnptia.embrapa.br/handle/doc/661591
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Bioindicators in radiation protection BABT
Amaral,Ademir; Fernandes,Thiago Salazar; Cavalcanti,Mariana Brayner.
Biodosimetry is the evaluation of absorbed dose using bioindicators. Among chromosomal aberrations, scoring of dicentrics from peripheral human blood has been used as gold standard for biodosimetry, although in case of large scale incidents its use presents some drawbacks. Advances in technology have led to new investigations allowing or permitting the use of new methods which not only improve this "classical" biodosimetry but permits the design of other bioindicators making possible faster analyses, particularly in events where many persons may have been exposed. This report presents an overview of some recent studies developed by the "Grupo de Estudos em Radioproteção e Radioecologia - GERAR", Nuclear Energy Department of UFPE - Brazil, involving...
Tipo: Info:eu-repo/semantics/article Palavras-chave: Biodosimetry; Physical Dosimetry; Radioprotection; Bioindicators; Protein expression.
Ano: 2008 URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1516-89132008000700015
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Bioluminescent Coleoptera of Biological Station of Boracéia (Salesópolis, SP, Brazil): diversity, bioluminescence and habitat distribution Biota Neotropica
Viviani,Vadim Ravara; Santos,Raphael Machado dos.
Brazil hosts the richest biodiversity of bioluminescent beetles in the world. Several species are found in the Atlantic rain forest, one of the richest and most threatened tropical forests in the world. We have catalogued the biodiversity of bioluminescent species mainly of Elateroidea superfamily occurring in one of the last largest and most preserved remnants of Atlantic rain forest, located at the Biological Station of Boracéia of São Paulo University (Salesopolis, SP, Brazil). This site accounted with the largest diversity ever found for a single place in São Paulo State, with 39 species: Lampyridae (30), Phengodidae (5), Elateridae (3) and Staphylinidae (1). This fauna has unique species that were not found in any other places of Atlantic forest in...
Tipo: Info:eu-repo/semantics/article Palavras-chave: Lampyridae; Phengodidae; Elateridae; Staphylinidae; Bioluminescence; Fireflies; Bioindicators.
Ano: 2012 URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1676-06032012000300001
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Biomassa e atividade microbiana de solo sob vegetação nativa e diferentes sistemas de manejos - doi: 10.4025/actasciagron.v33i2.4841 Agronomy
Alves, Tatiane dos Santos; UFMT; Campos, Lizia Lenza; UFMT; Elias Neto, Nicolau; UFMT; Matsuoka, Marcia; UFMT; Loureiro, Maria Fatima; UFMT.
O presente trabalho tem como objetivo avaliar a influência de diferentes sistemas de manejos, a população microbiana e sua atividade. Para tal, foram coletadas, em outubro de 2006 e março de 2007, amostras de solo na Fazenda Sereno no Município de Jaciara, Estado do Mato Grosso. Retirou-se amostras de solo na profundidade de 0-10 cm, com quatro repetições em cinco áreas com diferentes sistemas de manejos: integração lavoura-pecuária, lavoura de milho/soja, pastagens, vegetação nativa e vegetação nativa em recuperação. Para avaliar o carbono da biomassa microbiana (CBM) e a respiração microbiana (RM) foi utilizado o método do Clorofórmio Fumigação-Incubação (CFI). Já o qCO2 foi obtido pela relação entre a RM e o CBM. As médias foram comparadas pelo teste de...
Palavras-chave: 5.01.01.04-8 microrganismos do solo; Clorofórmio fumigação-incubação; Bioindicadores; Quociente metabólico; Integração lavoura-pecuária Microbiologia e Bioquímica do Solo soil microorganisms; Chloroform fumigation-incubation; Bioindicators; Metabolic quotient; Agriculture-livestock integration.
Ano: 2011 URL: http://periodicos.uem.br/ojs/index.php/ActaSciAgron/article/view/4841
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Blood parameter analysis and morphological alterations as biomarkers on the health of Hoplias malabaricus and Geophagus brasiliensis BABT
Romão,Silvia; Donatti,Lucélia; Freitas,Matheus O.; Teixeira,Josiane; Kusma,Josiana.
This study aimed to assess the influence of the environment on fish health. Samples of Hoplias malabaricus and Geophagus brasiliensis, were collected from three different environments: area I was urban and areas II and III were rural. Analyses of red blood cell count, microhematocrit, hemoglobin concentration, white blood cell count and differential white cell count in blood smear were carried out. Mean corpuscular volume and mean corpuscular hemoglobin concentration were calculated. To analyze morphological alterations, gills, liver, kidney and gonads were submitted to routine histological processing. Individuals collected from area III had slightly lower blood indices than collected from area I . Severe kidney changes, degeneration of and crystallization...
Tipo: Info:eu-repo/semantics/article Palavras-chave: Fish; Bioindicators; Biomarkers; Morphological alterations; Hematology.
Ano: 2006 URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1516-89132006000400012
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Characterization of Poaceae (grass) species as indicators of the level of degradation in a stretch of riparian forest in Matutina, Brazil Acta Botanica
Londe,Vinícius; Silva,José Carlos da.
Despite their extreme importance for environmental balance, riparian forests have been severely disturbed over time. This study aimed to identify grass species and determine their distribution in a disturbed stretch of riparian forest along Pimentas creek, in the municipality of Matutina, which is in the state of Minas Gerais, Brazil. Among four plots established within the study area, we recorded Pennisetum purpureum Schumach., Urochloa mutica (Forssk.) T.Q. Nguyen, Urochloa decumbens (Stapf) R.D. Webster, Paspalum notatum Flüggé and Andropogon bicornis L. The most common species was Pennisetum purpureum, which occurred in all of the plots, more frequently in those that had been disturbed. The proportions of exotic and native grasses, as well as their...
Tipo: Info:eu-repo/semantics/article Palavras-chave: Riparian zone; Perturbation; Creek banks; Bioindicators.
Ano: 2014 URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0102-33062014000100010
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Considérations sur le traitement du diagramme (Polecto-rhynchus mediterraneus, Guichenot 1850) OceanDocs
Thiam, M.; Kalianov, V..
Tipo: Journal Contribution Palavras-chave: T/S diagrams; Radiance distribution; Bioindicators; Fishery data.
Ano: 1988 URL: http://hdl.handle.net/1834/4684
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Distribution and abundance of Chironomidae (Diptera, Insecta) in an impacted watershed in South-east Brazil BJB
MARQUES,M. M. G. S. M.; BARBOSA,F. A. R.; CALLISTO,M..
Patterns of abundance and distribution of chironomid midges (Diptera, Chironomidae) in the middle Rio Doce basin were analysed. Human activities (mining, steel processing, and Eucalyptus spp. forestry) contribute to environmental degradation and low water quality in this watershed. Physical and chemical water traits (dissolved oxygen, pH, total alkalinity, electric conductivity, phosphorus and nitrogen concentrations) of 20 sampling points were used in a Principal Component Analysis (PCA) to establish the best and worst water quality. Sampling points recorded as the most polluted showed low genus richness of Chironomidae, less than five genera from the total 23, and dominance of the genus Chironomus, a bioindicator of environmental stress. Following...
Tipo: Info:eu-repo/semantics/article Palavras-chave: Chironomus; Bioindicators; Pollution.
Ano: 1999 URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0034-71081999000400004
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Distribution quantitative de la meiofaune dans un milieu fortement anthropise : le vieux port de Bizerte (Tunisie) OceanDocs
Essid, N.; Mahmoudi, E.; Beyrem, H.; Aissa, P.; Hedfi, A..
The survey of sediment and hydrological parameters in the old harbor of Bizerte has revealed that this ecosystem knows a high anthropogenic pressure. In this area waters were characterized by weak contents in dissolved oxygen and sediments, rich in fine fraction, were loaded in hydrocarbons and in organic matter. The free-living nematodes, predominant taxa, responded to these disturbances by a significant decrease in their densities and their biomasses and had tendency, notably at the most isolated sites, to penetrate deeply to escape surface sediments highly loaded in hydrocarbons and in organic matter.
Tipo: Journal Contribution Palavras-chave: Hydrocarbons; Pollution effects; Pollution indicators; Meiobenthos; Harbours; Man-induced effects; Bioindicators; Hydrocarbons; Http://aims.fao.org/aos/agrovoc/c_3719.
Ano: 2003 URL: http://hdl.handle.net/1834/1115
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Diversidade da fauna edáfica e epigeica de invertebrados em consórcio de mandioca com adubos verdes. Repositório Alice
BRITO, M. F. de; TSUJIGUSHI, B. P.; OTSUBO, A. A.; SILVA, R. F. da; MERCANTE, F. M..
2016
Tipo: Artigo em periódico indexado (ALICE) Palavras-chave: Manihot esculenta; Bioindicadores; Fauna do solo; Isoptera; Sustentabilidade; Bioindicators; Soil fauna; Sustainability.
Ano: 2016 URL: http://www.alice.cnptia.embrapa.br/handle/doc/1048078
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Diversity of springtails (Collembola) in agricultural and forest systems in Southern Santa Catarina Biota Neotropica
Ortiz,Danielle Cristina; Santos,Marcielli Aparecida Borges dos; Oliveira Filho,Luís Carlos Iuñes de; Pompeo,Pâmela Niederauer; Niemeyer,Júlia Carina; Klauberg Filho,Osmar; Baretta,Carolina Riviera Duarte Maluche; Sampietro,Jean Alberto; Baretta,Dilmar.
Abstract: The aim of this study was to evaluate the influence of soil use on the morphological diversity of springtails and to verify the relationship of these organisms with soil physical, chemical, and microbiological properties. Samples were collected in the Southern region of Santa Catarina, involving three municipalities: Orleans, Lauro Müller, and Siderópolis, in the land use systems (LUS) of native forest (NF), Eucalyptus plantation (EP), pasture (PA), integrated crop-livestock (ICL), and no-tillage (NT). Soil samples to determine edaphic properties and pitfall traps were collected in winter and summer, in the same areas. The collected springtails were counted and morphotyped and the data were analyzed through abundance, Shannon-Wiener diversity...
Tipo: Info:eu-repo/semantics/article Palavras-chave: Collembola morphotypes; Bioindicators; Soil quality; Edaphic mesofauna.
Ano: 2019 URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1676-06032019000300207
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Earthworm populations sampled using collection methods in atlantic forests with Araucaria angustifolia Scientia Agricola
Baretta,Dilmar; Brown,George Gardner; James,Samuel Wooster; Cardoso,Elke Jurandy Bran Nogueira.
Araucaria angustifolia, also known as the Paraná Pine is an endangered tree species in Brazil and little is known of the diversity of soil invertebrates inhabiting these forests. Therefore, the present study was set up to evaluate the biomass and diversity of earthworms in natural and reforested Araucaria plots, impacted or not by fire, and to identify the most efficient earthworm collection method. Four study areas included: native forest with Araucaria (NF); Araucaria reforestation (R); Araucaria reforestation submitted to an accidental fire (RF); and native grass pasture with native Araucaria and submitted to an intense accidental fire (NPF). Five soil samples containing the earthworm community were taken in a 0.3 ha area in each of the forest sites,...
Tipo: Info:eu-repo/semantics/article Palavras-chave: Oligochaeta; Biodiversity; Burning; Native and exotic species; Bioindicators.
Ano: 2007 URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0103-90162007000400009
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Ecological assessment of a southeastern Brazil reservoir Biota Neotropica
Martins,Isabela; Sanches,Barbara; Kaufmann,Philip Robert; Hughes,Robert M.; Santos,Gilmar Bastos; Molozzi,Joseline; Callisto,Marcos.
Reservoirs are artificial ecosystems with multiple functions having direct and indirect benefits to humans; however, they also cause ecological changes and influence the composition and structure of aquatic biota. Our objectives were to: (1) assess the environmental condition of Nova Ponte Reservoir, Minas Gerais state, southeastern Brazil; and (2) determine how the aquatic biota respond to disturbances. A total of 40 sites in the littoral zone of the reservoir were sampled to characterize physical and chemical habitat, land use, and benthic macroinvertebrate and fish assemblages. The predominant type of land cover near the reservoir was natural vegetation. A total of 29 fish species and 39 macroinvertebrate taxa were collected, including eight alien...
Tipo: Info:eu-repo/semantics/article Palavras-chave: Reservoirs; Water quality; Bioindicators; Physical habitat; Environmental quality.
Ano: 2015 URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1676-06032015000100103
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Edaphic Entomofauna Variation Depending on Glyphosate Application in Roundup Ready Soybean Crops Planta Daninha
PEREIRA,J.L.; ARAÚJO,T.A.; RODRIGUES-SILVA,N.; SILVA,A.A.; PICANÇO,M.C..
ABSTRACT: Currently, biomonitoring is a methodology used to verify the environmental impact of new technologies in the agricultural environment, highlighting edaphic entomofauna that is traditionally used as a bioindicator in this sort of research. Therefore, the objective of this study was to investigate the edaphic entomofauna variation depending on glyphosate application in Roundup Ready soybeans. The experiment was carried out in Coimbra, MG during the 2007/2008 and 2008/2009 cropping seasons. The experimental design was a randomized block design with five replications. The treatments were: non-transgenic soybean with mechanical weeding of weeds; transgenic soybean with mechanical weeding of weeds; transgenic soybean with one glyphosate application and...
Tipo: Info:eu-repo/semantics/article Palavras-chave: Glycine max; Bioindicators; Transgenic plants; Herbicide.
Ano: 2018 URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0100-83582018000100307
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Evaluation of the use of Leptodactylus ocellatus (Anura: Leptodactylidae) frog tissues as bioindicator of metal contamination in Contas River, Northeastern Brazil Anais da ABC (AABC)
CORREIA,LÍVIA O.; SIQUEIRA JÚNIOR,SÉRGIO; CARNEIRO,PAULO L.S.; BEZERRA,MARCOS A..
This paper presents a study on the viability of the use of tissues of the Leptodactylus ocellatus species (Anura Leptodactylidae) as a bioindicator of metal pollution. The study is based on the determination and correlation of the concentrations of manganese, chromium, zinc, nickel, copper and iron in sediments and tissues (skin, muscles and viscera) of the frog Leptodactylus ocellatus collected in the middle region of the Contas River in Bahia, Brazil. The highest levels of the metals studied were found in the viscera of this animal. In this tissue, a higher correlation of the concentration of these metals with those found in sediments was also observed. The concentrations of elements found in the skin and muscles of these amphibians have revealed no...
Tipo: Info:eu-repo/semantics/article Palavras-chave: Leptodactylus ocellatus; Bioindicators; Sediments; Metals; Contas River.
Ano: 2014 URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0001-37652014000401549
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