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| Registros recuperados: 53 | |
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| Mendes,Humberto Fonseca; Andersen,Trond. |
| Jururumberus n. gen. is erected based on the males of J. arapuca n. sp. from São Paulo State, in southeastern Brazil and J. uatuma n. sp. from the Amazonas in northern Brazil. The genus can be separated from other Orthocladiinae based on the combination of bare eyes, wing, and squama; frons U-shaped, extended ventrally; AR ≤ 0.3, antenna without apical seta; palp short, five-segmented, with sensilla clavata in subapical sensillum coeloconicum; no acrostichals; costa strongly extended; R4+5 ending proximal to M3+4; anal point narrowly triangular with microtrichia only, sitting high on tergite IX; and virga composed of two spines. |
| Tipo: Info:eu-repo/semantics/article |
Palavras-chave: Chironomidae; Orthocladiinae; Jururumberus; New genus; New species; Brazil; Neotropical region; Mata Atlântica; Amazon. |
| Ano: 2013 |
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1676-06032013000400071 |
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| Beghelli,Frederico Guilherme de Souza; Santos,André Cordeiro Alves dos; Urso-Guimarães,Maria Virgínia; Calijuri,Maria do Carmo. |
| The purpose of this work was to verify the benthic macroinvertebrates community responses through environmental factors along a headwater tropical reservoir. Samplings were taken with a Van-Veen grab along the reservoir in littoral and profundal regions and in the headwater, next to the dam and the middle of the reservoir. Samples were taken during both wet and dry seasons. Dissolved oxygen concentrations, electric conductivity, temperature and pH near the sediment have been performed in situ, at every sampling station by using a multiprobe and Secchi disc. Total water phosphorus and chlorophyll a concentrations were analyzed to determine the trophic state index. Sediment's organic matter, total phosphorus, nitrogen concentrations and granulometric... |
| Tipo: Info:eu-repo/semantics/article |
Palavras-chave: Benthos; Chironomidae; Limnology; Bioindicator; Water quality. |
| Ano: 2012 |
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1676-06032012000400012 |
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| GALDEAN,N.; CALLISTO,M.; BARBOSA,F. A. R.. |
| Five lotic systems of Serra do Cipó, south-east Brazil, were investigated in order to assess the existing diversity of benthic macroinvertebrates, habitats-microhabitats, and the available trophic resources. For each river it was analysed the communities of benthic macroinvertebrates and the composition of some taxonomic groups (Plecoptera, Ephemeroptera, Trichoptera and Diptera Chironomidae): the community with Bivalvia Sphaeriidae, Oligochaeta and Ephemeroptera Baetidae (being supposed a closed relation Bivalvia-Oligochaeta based on the process of bioturbation and enrichment of sediment in organic matter) in Tanque River; the macrofauna associated to aquatic macrophytes from rivers Peixe and Preto do Itambé reflecting the reaction of the ecosystems... |
| Tipo: Info:eu-repo/semantics/article |
Palavras-chave: Macroinvertebrates; River ecology; Ephemeroptera; Trichoptera; Chironomidae. |
| Ano: 2001 |
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0034-71082001000200006 |
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| Registros recuperados: 53 | |
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