Show simple item record Albertoni, Edélti Faria Prellvitz, Lia Jacobsen Palma-Silva, Cleber 2010-10-02T17:26:02Z 2010-10-02T17:26:02Z 2007
dc.identifier.citation ALBERTONI, E. F. ; PRELLVITZ, L. J. ; PALMA-SILVA, C. . Macroinvertebrate fauna associated with Pistia stratiotes and Nymphoides indica in subtropical lakes (south Brazil). Brazilian Journal of Biology, v. 67, p. 499-507, 2007. pt_BR
dc.identifier.issn 1519-6984
dc.identifier.issn 1678-4375
dc.description.abstract This study was carried out at the Biguás and Polegar lakes, both small environments but at different successional stages. The main objective was to characterize the macroinvertebrate community associated to the aquatic macrophyte stand in each lake in order for this community, the environmental conditions and their water quality to interact. The samples were taken in 2003. The abiotic variables of N and P totals, the temperature, electrical conductivity, pH and dissolved oxygen, as well as the determined clorophyll a concentration were measured. Macroinvertebrates were sampled with a 500 µ mesh size net, separated under a stereomicroscope and identifed at the lowest possible taxo- nomic level, and their densities were shown as the number of individuals per 100 g of macrophyte dry weight. The Shannon-Wiener Diversity Index (H’), Pielou evenness (J), frequency of occurrence, abundance and taxa richness were calculated for each invertebrate community. The Lago dos Biguás is undergoing a process of eutrophication and during the study presented a large Pistia stratiotes stand. The Lago Polegar is oligotrophic and had only a small Nymphoides indica bankwe. The macrophyte associated invertebrate communities in each lake were considered signifcantly dif- ferent (p < 0.05). Sixty seven taxa were found for the Lago dos Biguás and 32 for the Lago Polegar. For both lakes, most of the taxa were considered rare, with a low dominance in a few months. The taxa with highest densities at Lago dos Biguás were Chironomidae, Daphniidae and Cyclopidae, and Oligochaeta, Chironomidae and Coenagrionidae for Lago Polegar. pt_BR
dc.language.iso eng pt_BR
dc.rights open access
dc.subject Macroinvertebrates associated with macrophytes pt_BR
dc.subject Communities pt_BR
dc.subject Subtropical lakes pt_BR
dc.subject Macroinvertebrados associados às macróftas pt_BR
dc.subject Comunidades pt_BR
dc.subject Lagos subtropicais pt_BR
dc.title Macroinvertebrate fauna associated with Pistia stratiotes and Nymphoides indica in subtropical lakes (south Brazil) pt_BR
dc.title.alternative Fauna de macroinvertebrados associados a Pistia stratiotes e Nymphoides indica em lagos subtropicais (sul do Brasil) pt_BR
dc.type article pt_BR

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