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(Reference retrieved automatically from SciELO through information on FAPESP grant and its corresponding number as mentioned in the publication by the authors.)

First record of Dero (Aulophorus) bimagnasetus Harman (Oligochaeta) from Brazil and habitat characteristics

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Author(s):
R. Campitelli-Ramos [1] ; JV. Lucca [2] ; LLD. Oliveira [3] ; MR. Marchese [4] ; O. Rocha [5]
Total Authors: 5
Affiliation:
[1] Univ Sao Paulo, Escola Engn Sao Carlos, Dept Hidraul & Saneamento, Programa Posgrad Ciencias, BR-13566590 Sao Paulo - Brazil
[2] Universidade Federal de São Carlos – UFSCar. Departamento de Ecologia e Biologia Evolutiva - Brasil
[3] Universidade de São Paulo – USP. Escola de Engenharia de São Carlos. Departamento de Hidraúlica e Saneamento - Brasil
[4] Universidad Nacional del Litoral – UNL. Consejo Nacional de Investigaciones Científicas y Técnicas – CONICET. Instituto Nacional de Limnología – INALI - Argentina
[5] Lucca, J., V, Univ Fed Sao Carlos UFSCar, Dept Ecol & Biol Evolut, BR-13565905 Sao Carlos, SP - Brazil
Total Affiliations: 5
Document type: Journal article
Source: Brazilian Journal of Biology; v. 74, n. 2, p. 483-488, 2014-05-00.
Abstract

Annelid worms represent a significant part of freshwater benthic communities worldwide and Oligochaeta is a particularly species-rich group. Dero (A) bimagnasetus (Naididae) previously found and described from a small marsh in Surinam in 1974, has now been found for the first time in Barra Lake, MG, Brazil. Due to the scarce biological data and absence of ecological information in the literature regarding this species we are presenting morphological information on the specimens obtained and the physical and chemical characteristics of the habitat they were found. This species occurred only in the littoral zone of Barra Lake, in muddy, low oxygen, low conductivity and low organic matter sediment. The four individuals collected ranged 3.17-4.15 mm total length; 0.25 - 0.26 mm body width and 0.16-0.21 mm3 total volume. Considering the present anthropic pressures on freshwater biota and fast biodiversity losses worldwide it is now recognized that attention must be paid to low abundance species and the urgency for preservation of their habitats. (AU)