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| Bevilacqua,Maria Silvina; Marchese,Mercedes Rosa; Felix,Rodrigo Weber; Leal,João José Fonseca; Barros,Marcos Paulo Figueiredo de; Bozelli,Reinaldo Luiz; Esteves,Francisco de Assis. |
| Abstract: The aim of this study was to analyze aquatic oligochaete distribution in relation to water column physicochemical variables, structural environmental variation, and predominant substrates in the preserved Amazonian streams of the Saracá-Taquera National Forest (FLONA Saracá-Taquera), northwest Pará, Brazil. Oligochaetes are widely used as bioindicators for monitoring aquatic environments as they are very sensitive to pollution and environmental changes. Physicochemical and structural variables were measured from 100 stream segments in order to understand the distribution of oligochaetes in Amazonian streams. Biotic samples were collected using Surber samplers in three of the most predominant substrate types in each segment. PERMANOVA testing... |
| Tipo: Info:eu-repo/semantics/article |
Palavras-chave: Aquatic macroinvertebrates; Biomonitoring; Tropical streams; Substrates; Stream hydrology; Mining activities. |
| Ano: 2020 |
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1676-06032020000100202 |
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| TRIVINHO-STRIXINO,S.; CORREIA,L. C. S.; SONODA,K.. |
| Infernão Lake, located within the Jataí Ecological Station in Luiz Antônio Municipal district (São Paulo State, Brazil), is one of the most typical ox-bow lake of the Mogi-Guaçu River, and it presents, as the main feature, its great quantity of aquatic macrophytes, whose intensive development, in the last years practically covered the whole mirror of water. With the purpose to point out the composition and to establish the relative participation of the phytophilic zoocoenosis that inhabits the different macrophytes of that lake, a collection program of the main vegetation stands was established. The collections, were carried out randomly, during dry season (1994), in stands of Salvinia auriculata, Utricularia sp., Cabomba piauhyensis, Eichhornia azurea and... |
| Tipo: Info:eu-repo/semantics/article |
Palavras-chave: Chironomidae (Diptera); Aquatic macroinvertebrates; Aquatic phytofauna. |
| Ano: 2000 |
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0034-71082000000300018 |
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| Pujarra,Samaila; Klosinski Lourenço,Danielle; de Almeida Gurski,Fernanda; dos Santos,Ana P. A; Moretto,Yara. |
| The benthic macroinvertebrate community structure is directly related to environmental factors such as water characteristics, habitat availability and substrate heterogeneity. This study had the purpose of characterizing the benthic macroinvertebrate community and compare its attributes in streams located inside (preserved area) and outside (altered area) the Iguaçu National Park, in the west of Parana, Brazil, in two season (dry and rainy). Three replicates per site were obtained through the Surber collector in four microhabitats (litter pool, litter riffle, substrate pool and substrate riffle). There was significant discrimination in the benthic fauna composition among the study areas (Wilks=0.091; F272,746= 2.249; P<0.0001). The taxa Corbiculidae,... |
| Tipo: Info:eu-repo/semantics/article |
Palavras-chave: Aquatic macroinvertebrates; Iguaçu National Park; Agricultural impact; Riparian vegetation; Habitat heterogeneity. |
| Ano: 2017 |
URL: http://www.scielo.org.ar/scielo.php?script=sci_arttext&pid=S1667-782X2017000400010 |
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