The distribution of chironomid larvae and oligochaetes within a stony-bottomed river stretch: the role of substrate and hydraulic characteristics

Syrovátka, Vít; Schenková, Jana; Brabec, Karel

doi:10.1127/1863-9135/2009/0174-0043

Cited by 40 publications

(33 citation statements)

References 54 publications

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“…On the other hand, there was no variation of the fauna in relation to the water flow differences between the mesohabitats (riffle and pool). This result corroborates that of Syrovátka et al (2009), who reported that the quantity of particulate organic matter explained more of the variation observed in the oligochaetes fauna than did the water flow conditions. Alves et al (2006) and Verdonschot (2001) respectively observed that the granulometria and nature of the substrate has a considerable influence on the distribution of oligochaetes.…”

Section: Discussionsupporting

confidence: 82%

“…In natural environments the main factors that influence the occurrence and distribution of oligochaetes are the structure of the substrate, organic matter content and water flow. For instance, there are species that prefer substrates with smaller particle size and low current flow, while others are more common in habitats with coarser substrates and higher flow (Verdonschot, 2001;Dumnicka, 2006;Syrovátka et al, 2009).…”

Section: Introductionmentioning

confidence: 99%

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Distribution of oligochaetes in a stream in the Atlantic Forest in southeastern Brazil

2015

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The oligochaetes are considered good indicators of ecological conditions and specific types of habitats. Among the factors that influence the distribution of these invertebrates are the water flow and the nature of the substrate. The aim of this study is to describe the composition and distribution of oligochaete species in a first-order stream in Atlantic Forest and try to identify if some species are associated with characteristics of particular types of habitats. In the dry season and in the rainy season, sand and litter samples in two riffle areas and two pool areas were collected in different parts along the stream using a hand net. The greatest observed richness and abundance occurred in sand in the pool, however the greatest estimated richness was obtained for litter in the pool. The Kruskal-Wallis analysis showed effect of the different types of habitat on the abundance and richness of oligochaetes. The Nonmetric Multidimensional Scaling (NMDS) and Multiresponse Permutation Procedure analysis (MRPP) indicated that the variation in the fauna composition had relation with different types of substrates. The indicator species analysis showed that Limnodrilus. hoffmeisteri was an indicator species in both the riffle sand and pool sand and Pristina americana was only an indicator in the pool sand. The high organic matter content in both sandy habitats probably favored the greater abundance of oligochaetes. The results showed that the substrate constitutes an important factor for the local distribution of these invertebrates in streams. The variation of the community structure among mesohabitats and the presence of indicator species of specific types of habitats in the stream demonstrate the importance of environmental heterogeneity for the oligochaetes fauna in forested streams.Keywords: indicator species, litter, sand, tropical region. Distribuição de oligoquetas em um riacho da Mata Atlântica, Sudeste do Brasil ResumoOs oligoquetos são considerados bons indicadores de condições ecológicas e de tipos específicos de habitats. Entre os principais fatores que influenciam a distribuição desses invertebrados estão o fluxo da água e a natureza do substrato. O objetivo principal desse estudo foi descrever a composição e distribuição de espécies de oligoquetas de um riacho de primeira ordem da Mata Atlântica e identificar espécies que são características de tipos específicos de habitats. Na estação seca e na estação chuvosa, amostras de areia e folhiço de duas corredeiras e dois remansos foram coletadas em diferentes manchas ao longo de um trecho do riacho usando rede de mão. A maior abundância e riqueza observada ocorreram em areia de remanso. Entretanto, a análise de rarefação mostrou que a maior riqueza estimada foi obtida em folhiço de remanso. A análise de Kruskal-Wallis mostrou o efeito dos diferentes tipos de mesohabitats sobre a abundância e riqueza de oligoquetas. A análise de Escalonamento Multidimensional não-Métrico (NMDS) e a análise de Procedimento de permutação mulitirespostas (MRPP) indicaram ...

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Section: Discussionsupporting

confidence: 82%

Section: Introductionmentioning

confidence: 99%

Distribution of oligochaetes in a stream in the Atlantic Forest in southeastern Brazil

2015

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“…The richness and composition of oligochaete species is influenced by the substrate's composition, organic matter content and food quality (Syrova´tka et al, 2009;Bojkovaé t al., 2011). Decomposing leaves are used by oligochaetes for shelter (Chauvet, 1997) and also for food, in the form of fine particulate organic matter and the associated periphyton (Galizzi and Marchese, 2009).…”

Section: Introductionmentioning

confidence: 99%

Colonization by oligochaetes (Annelida: Clitellata) in decomposing leaves ofEichhornia azurea(SW.) Kunth (Pontederiaceae) in a neotropical lentic system

Martins

Silveira

Alves

2011

Ann. Limnol. - Int. J. Lim.

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-The objective of the present study was to examine the colonization of oligochaetes during the decomposition of leaves of the macrophyte Eichhornia azurea in a lentic system in southeastern Brazil. The experiment was conducted between September and November 2007, with the use of 21 nylon bags measuring 15 r 15 cm with 2 mm mesh, each containing 10 g of dried leaves. The bags were removed from the lake after 2, 5, 8, 12, 25, 45 and 65 days. At the end of the experiment, 31.40% of the initial mass remained, and the decomposition rate was 0.018 d x1 . The mean density of oligochaetes during the experiment was 32.81 ¡ 9.58 ind.g x1 DM. The sub-families Naidinae and Pristininae accounted for 99.83% of the oligochaetes. The substrate quality influenced the colonization of E. azurea leaves, as observed from the cluster analysis by the formation of two groups based on increased density during the experiment, indicating a degradative ecological succession. During the decomposition there were changes in the community of oligochaetes, resulting from differences in the ability to exploit various food sources, with predominance of predators in the first decomposition phase and of collectors at the end of the experiment.

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“…abundance was due to its preference for higher altitudes and, therefore, lower temperatures and higher oxygen concentrations (Dumnicka 2000;Verdonschot 2006). Its quick recovery is due to its ecological plasticity, expressed by a broad flow condition valence (Syrovátka et al 2009). However, the analogous response of Lumbriculus variegatus is explained differently, by its preference for lower pH (Nijboer et al 2004), which can result in its movement into parts of the stream with optimal pH values.…”

Section: Discussionmentioning

confidence: 99%

Environmental impact of heated mining waters on clitellate (Annelida: Clitellata) assemblages

et al. 2014

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Mining is a relatively highly monitored industry. While chemical pollutants (toxic ions, radionuclides, etc.) have mostly been eliminated from mining waters, other types of environmental pollution (temperature regime alterations, high concentrations of various anions, etc.) can affect benthic invertebrates. In this study, we focused on the effect of mining water effluent on the diversity and density of aquatic Clitellata. Four sampling sites were selected. Three sites in a natural stream (the Nedvědička River, Czech Republic), one upstream and two downstream from the mining effluent, and one site on the mining waters were sampled monthly during [2008][2009]. Environmental variables were recorded in and samples were collected from two types of habitats -riffles and pools. The response of clitellate assemblages was evaluated using principal component analysis and generalised estimating equations. The results indicated that the mining effluent caused partial species exchange and had negative effects on clitellate taxa richness and abundance. These responses were specific to both the habitat (riffle/pool) and species sampled. In each of the different taxa studied, we observed one of four typical clitellate responses: (a) elimination of stenotherm species; (b) reduction of clitellate species followed by quick recovery; (c) neutral response; or (d) positive influence. We found that aquatic clitellates, which are considered to be eurytopic with broad ecological valences, are also sensitive to even slight environmental pollution.

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The distribution of chironomid larvae and oligochaetes within a stony-bottomed river stretch: the role of substrate and hydraulic characteristics

Cited by 40 publications

References 54 publications

Distribution of oligochaetes in a stream in the Atlantic Forest in southeastern Brazil

Distribution of oligochaetes in a stream in the Atlantic Forest in southeastern Brazil

Colonization by oligochaetes (Annelida: Clitellata) in decomposing leaves ofEichhornia azurea(SW.) Kunth (Pontederiaceae) in a neotropical lentic system

Environmental impact of heated mining waters on clitellate (Annelida: Clitellata) assemblages

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