Índices bióticos para avaliação da qualidade ambiental em trechos do rio Correntoso, Pantanal do Negro, Estado do Mato Grosso do Sul, Brasil

Silva, Fábio Henrique da; Favero, Silvio; Sabino, José; Garnés, Silvio Jacks dos Anjos

doi:10.4025/actascibiolsci.v33i3.1478

Cited by 8 publications

(11 citation statements)

References 12 publications

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“…Some studies pointed out that, in comparison with other metrics, the BMWP indices, provide better results for benthic fauna (Guimarães et al 2009, Silva et al 2011.…”

Section: Introductionmentioning

confidence: 99%

Benthic macroinvertebrate community structure in a stream of the north-west region of Paraná State, Brazil

2012

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This study aimed to survey the benthic macroinvertebrate fauna of a first order stream located in an agricultural area, and to assess the environmental factors involved in the spatial distribution of this community. Invertebrates were gathered in November 2007 at three sampling sites distributed along the Itiz Stream, located in Marialva municipality, Paraná State. At each site, we measured the physical and chemical variables of the water, and then took four samples, using Surber sampler. In order to evaluate the differences in density, richness, diversity and evenness, we employed an ANOVA and a DCA to summarize biotic data. The invertebrates were categorized into functional groups and the BMWP score was applied to calculate the biological integrity of the environment. The faunal composition was represented by 103 taxa distributed across five phyla, of which the highest occurrence was of arthropods, especially insects. Higher density values were observed for Chironomidae, Ephemeroptera, Coleoptera and Trichoptera. The richness, diversity and density, as well as the density of gathering-collectors, were higher in the intermediate course of the stream. The distribution pattern of the taxa was mainly influenced by lentic or lotic characteristics of the sampled sites and microhabitats, as evidenced by the DCA. The BMWP indices indicated that the three sampling sites presented scores of excellent and good water quality. In the Itiz Stream, the presence of preserved marginal vegetation and the distance from urban centers that generate pollution, combined with peculiarities of each sampling site, influenced the structure of the benthic community.

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“…Some studies pointed out that, in comparison with other metrics, the BMWP indices, provide better results for benthic fauna (Guimarães et al 2009, Silva et al 2011.…”

Section: Introductionmentioning

confidence: 99%

Benthic macroinvertebrate community structure in a stream of the north-west region of Paraná State, Brazil

2012

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“…In a study on the Correntoso River, in the Pantanal of Mato Grosso do Sul, Silva et al (2011) evaluated the community structure of aquatic insects that are indicators of environmental quality using three biotic indicators (BMWP, BMWP-ASP and IBF), and found that the index BMWP was the one that best represented the studied environmental conditions.…”

Section: Discussionmentioning

confidence: 99%

Benthic Macroinvertebrates as Bioindicators of Environmental Quality in Three Streams of the Amambai River Basin, Upper Paraná River, Brazil

2019

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The objective of this study was to evaluate the environmental integrity of three streams (along 13 sampling sites) of the Upper Paraná River Basin using the benthic macroinvertebrate fauna as bioindicators and to answer the following question: Is there spatial variation, related to environmental quality, in the composition of these taxa in the streams? The invertebrates were sampled with a surber collector and for habitat analysis were determined characteristics as stream depth and width, water velocity, dissolved oxygen, pH, temperature, turbidity, and electrical conductivity. The environmental variables were analyzed by Principal Component Analysis in order to synthesize the data and identify the most important variables for ordering the collection sites. For biological analysis, the BMWP index was used. A Canonical Correlation Analysis of the environmental and biotic data was also performed in order to identify correlations between these two sets of variables. The collected macroinvertebrates belonged to four phyla (Nematoda, Annelida, Mollusca and Arthropoda), with Arthropoda being the most representative (54.93%), with the predominance of the order Diptera (30.29%). The most sensitive orders (Ephemeroptera, Plecoptera and Trichoptera) occurred in four sampling sites, corresponding to less impacted ones. Tolerant organisms, mainly chironomids, were found in all streams, including the most impacted places. These results indicate a spatial variation in the composition of the macroinvertebrates taxa in the streams, in response to variation of environmental quality.

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“…Durante a vazante foi identificado a segunda abundância em relação ao período estudado, diferentemente de Silva et al (2011) quando as menores quantidades de macroinvertebrados foram identificados durante a vazante. Com o escoamento e velocidade da água interferindo na abundância de organismos (SILVA et al, 2011).…”

Section: Methodsunclassified

“…O número de famílias coletadas e a presença de famílias sensíveis a alterações ambientais indicam elevado grau de conservação (SILVA et al, 2011), o que corrobora com os valores encontrados no BMWP e apontam para a qualidade da água nas seis baías coletadas e durante o ciclo hidrológico estudado.…”

Section: Táxonunclassified

Eichhornia azurea COMO HOTSPOT PARA MACROINVERTEBRADOS AQUÁTICOS: FERRAMENTA PARA A APLICAÇÃO DE ÍNDICES DE AVALIAÇÃO AMBIENTAL

Souza¹,

Muniz²,

Oliveira³

2018

Enci Bio

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Geologically recent, Pantanal presents the biodiversity merging Amazon and Cerrado. Few studies on macrofauna were done in this region, leaving a great hole about the phytophile composition. Furtherlmore, the great abundance of macrophytes, such as Eichhornia azurea which forms huge beds and is present in the lentic systems of the Pantanal, has the role of also host organisms of the macrofauna community, which can suffer with any hidrological cycle changes. Therefore, we conducted a study aiming to identify the phytophile macrofauna associated to E. azurea, from different bays and hydrologic periods in Pantanal. Samples were taken monthly containing stem and roots of the macrophytetogether with limnological data of dissolved oxygen, pH, temperature and transparency. The macroinvertebrates associated to the macrophyte were screened to the family taxonomic level in order to obtain the diversity index (Shannon-Wiener), homogeneity and Biological Monitoring Working Party (BMWP) for biomonitoring. In total, 4,164 specimens belonging to 42 families in 12 large groups were identified. Chironomidae (Diptera) was the most abundant family in all of the sample sites and seasons. The Shannon-Wienner index varied from 0.94 to 1.08 and the BMWP indicated that the systems presented good water quality in all of the studied bays. The macrofauna diversity changes according to the season, indicating that the community structure also depends on the environmental parameters. Therefore, the uses of biomonitoring indexes in order to obtain the environmental quality of the bays in the Pantanal denotes that the organisms hosted by macrophytes can also be a tool to generate results for the environmental analysis.

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Índices bióticos para avaliação da qualidade ambiental em trechos do rio Correntoso, Pantanal do Negro, Estado do Mato Grosso do Sul, Brasil

Cited by 8 publications

References 12 publications

Benthic macroinvertebrate community structure in a stream of the north-west region of Paraná State, Brazil

Benthic macroinvertebrate community structure in a stream of the north-west region of Paraná State, Brazil

Benthic Macroinvertebrates as Bioindicators of Environmental Quality in Three Streams of the Amambai River Basin, Upper Paraná River, Brazil

Eichhornia azurea COMO HOTSPOT PARA MACROINVERTEBRADOS AQUÁTICOS: FERRAMENTA PARA A APLICAÇÃO DE ÍNDICES DE AVALIAÇÃO AMBIENTAL

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