|
|
|
|
|
| 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 |
| |
|
| |
|
|
| Correia,Leny Célia da Silva; Trivinho-Strixino,Susana. |
| In this paper seven species of the genus Chironomus Meigen, 1803 are recorded for the first time in the State of São Paulo (Brazil). C. stigmaterus Say, 1823 and C. columbiensis Wülker et al., 1989 are new records for Brazil, while C. calligraphus Goeldi, 1905, C. strenzkei Fittkau, 1968, C. gigas Reiss, 1974, C. latistylus Reiss, 1974 and C. paragigas Reiss, 1974 had already been registered in aquatic systems in North and Northeast regions of Brazil. |
| Tipo: Info:eu-repo/semantics/article |
Palavras-chave: Chironomidae; Chironomus; Diptera; New records. |
| Ano: 2005 |
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0085-56262005000300015 |
| |
|
|
|
