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| Registros recuperados: 18 | |
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| NIVA, C. C.; CEZAR, R. M.; FONSECA, P. M. da; ZAGATTO, M.; OLIVEIRA, E.; BUSH, E. F.; CLASEN, L. A.; BROWN, G. G.. |
| Enquitreídeos (Enchytraeidae, Oligochaeta) são organismos da mesofauna edáfica encontrados no mundo inteiro, mas ainda pouco estudados no Brasil. A abundância desses organismos determinada por diferentes métodos de coleta e extração, bem como as vantagens e desvantagens de cada método são apresentadas neste trabalho. Os métodos de amostragem com formol e por escavação de monólitos seguidos de triagem manual foram comparados aos métodos de coleta com trado desmontável seguido de extração úmida fria por três dias e extração úmida quente por três horas, que são recomendados para amostragens quantitativas de enquitreídeos. As coletas foram realizadas em 8-9 pontos num fragmento de floresta ombrófila mista em Colombo, PR, em 1-3 ocasiões entre setembro 2011 e... |
| Tipo: Artigo em anais de congresso (ALICE) |
Palavras-chave: Enchytraeidae; Oligochaeta; Amostragem; Extração úmida. |
| Ano: 2012 |
URL: http://www.alice.cnptia.embrapa.br/handle/doc/934627 |
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| NIVA, C. C.; CEZAR, R. M.; FONSECA, P. M.; ZAGATTO, M. R. G.; OLIVEIRA, E. M.; BUSH, E. F.; CLASEN, L. A.; BROWN, G. G.. |
| Enchytraeids are small oligochaetes found worldwide in soils with sufficient moisture and organic matter, but scarcely studied in the Southern hemisphere. This is the third study on enchytraeid abundance in Brazil using wet extraction and the first carried out in Araucaria Mixed Forest (subtropical region). The sampling and extraction were based on the standard method ISO 23611-3/2007 using an adapted split soil corer and wet extraction with and without heat to assess the abundance of enchytraeids in a forest fragment at Embrapa Forestry in Colombo, Paraná State. The samplings were performed in 3 occasions between September 2011 and April 2012. The average numbers estimated by each method varied from appr. 2.000-12.000 (cold) and 5.000-12.000 ind./ m2... |
| Tipo: Artigo em periódico indexado (ALICE) |
Palavras-chave: Enchytraeidae; Oligochaeta; Métodos de extração; Araucária; Subtropical. |
| Ano: 2015 |
URL: http://www.alice.cnptia.embrapa.br/handle/doc/1035229 |
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| NIVA, C. C.; CARDOSO, G. B. X.; ZAGATTO, M.; FONSECA, P. M. da; BROWN, G. G.. |
| O Pico Caratuva é a segunda montanha mais alta da Região Sul do Brasil, com 1850 metros de altitude e localiza-se na Serra do Mar, entre os municípios de Antonina e Campina Grande do Sul, no Paraná (25° 14' 26'' S 48° 49' 41'' W). A área do cume é recoberta por campo de altitude hidrófilo, consistindo em um tapete espesso de matéria orgânica composta principalmente por raízes e material vegetal morto sobre o qual a vegetação cresce. O objetivo do presente trabalho foi estudar a abundância e diversidade de enquitreídeos nesse ecossistema tão particular. A coleta foi realizada em maio de 2012 em oito pontos na face leste da área do cume. Duas amostras dos primeiros 5 cm superficiais do substrato de matéria orgânica foram coletadas em cada ponto com anéis de... |
| Tipo: Artigo em anais de congresso (ALICE) |
Palavras-chave: Enchytraeidae; Biodiversidade; Campo de altitude. |
| Ano: 2012 |
URL: http://www.alice.cnptia.embrapa.br/handle/doc/934637 |
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| Alves,Roberto da Gama; Marchese,Mercedes Rosa; Escarpinati,Suzana Cunha. |
| Despite the importance of Oligochaeta to the dynamics of aquatic ecosystems and to studies of the biology of pollution, there is currently a dearth of information on this group's ecology in Brazil. The aim of this study was to describe the Oligochaeta fauna in four watercourses - three urban and one rural - in the state of São Paulo: the Pinheirinho stream, the Água Branca stream, the Monjolinho River and the Gouveia stream, respectively. Sediment samples were taken with a Van Veen grab in two areas from each watercourse, during the summer and winter of 2001. In all collection areas, measurements of the pH, electrical conductivity, dissolved oxygen and turbidity of the water were made with a Horiba U-10 device. Principal component analysis showed that axes... |
| Tipo: Info:eu-repo/semantics/article |
Palavras-chave: Tubificidae; Naididae; Alluroididae; Narapidae; Enchytraeidae. |
| Ano: 2006 |
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0073-47212006000400007 |
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| Alves,Roberto da Gama; Marchese,Mercedes Rosa; Martins,Renato Tavares. |
| Studies on benthic macroinvertebrates of lotic environments usually focus on the occurrence, distribution, and richness of aquatic insects and decapod crustaceans. Only rarely these studies include the Oligochaeta. The aim of the present study was to examine the occurrence and species richness of Oligochaeta in different substrata patches of lotic environments. The studied included seven stream sites at Parque Estadual Intervales (São Paulo, Brazil). Stream sites differed in size and ranged from first to fourth order. In each stream, qualitative collections were made using a D-type net sampler with 0.21 mm mesh. Measures of pH, electrical conductivity, dissolved oxygen, temperature and water turbidity were taken in the studied sites during collections of... |
| Tipo: Info:eu-repo/semantics/article |
Palavras-chave: Atlantic Forest; Enchytraeidae; Tubificidae; Naidinae. |
| Ano: 2008 |
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1676-06032008000100009 |
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| PIZI, V.; SCHLAGHAMERSKY, J.; TRISKA, J.. |
| Abstract ? The effect of soil contamination by polycyclic aromatic hydrocarbons (PAH) and heavy metals on earthworms and enchytraeids was studied in urban parks, in Brno, Czech Republic. In spring and autumn 2007, annelids were collected and soil samples taken in lawns along transects, at three different distances (1, 5 and 30 m) from streets with heavy traffic. In both seasons, two parks with two transects each were sampled. Earthworms were collected using the electrical octet method. Enchytraeids were extracted by the wet funnel method from soil cores. All collected annelids were counted and identified. Basic chemical parameters and concentrations of 16 PAH, Cd, Cu, Pb, and Zn were analysed from soil from each sampling point. PAH concentrations were... |
| Tipo: Artigo em periódico indexado (ALICE) |
Palavras-chave: Enchytraeidae; Lumbricidae; Soil pollution. |
| Ano: 2009 |
URL: http://www.alice.cnptia.embrapa.br/handle/doc/661028 |
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| Václav,Pil; Schlaghamerský,Jiří; Tříska,Jan. |
| The effect of soil contamination by polycyclic aromatic hydrocarbons (PAH) and heavy metals on earthworms and enchytraeids was studied in urban parks, in Brno, Czech Republic. In spring and autumn 2007, annelids were collected and soil samples taken in lawns along transects, at three different distances (1, 5 and 30 m) from streets with heavy traffic. In both seasons, two parks with two transects each were sampled. Earthworms were collected using the electrical octet method. Enchytraeids were extracted by the wet funnel method from soil cores. All collected annelids were counted and identified. Basic chemical parameters and concentrations of 16 PAH, Cd, Cu, Pb, and Zn were analysed from soil from each sampling point. PAH concentrations were rather low,... |
| Tipo: Info:eu-repo/semantics/article |
Palavras-chave: Enchytraeidae; Lumbricidae; Soil pollution. |
| Ano: 2009 |
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0100-204X2009000800038 |
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| Registros recuperados: 18 | |
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