Chironomus gr. decorus (Diptera: Chironomidae) e outros insetos aquáticos de um açude temporário do semi-árido paraibano, Brasil

Abílio, Francisco José Pegado; Fonseca-Gessner, Alaíde A.; Watanabe, Tomonori; Leite, Romualdo Lunguinho

doi:10.1590/s0328-03812005000200007

Cited by 5 publications

(2 citation statements)

References 11 publications

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“…The first studies on benthic macroinverebrates in semi-arid Brazil, deal mostly with the taxonomy and distribution of specific taxa, such as Mollusca (Abílio et al, 2007). In reservoirs studies relate the biology and ecology of macroinvertebrates in the littoral sediment and associated with aquatic macrophytes (Abílio et al 2005a(Abílio et al , b, 2006Abílio and Watanabe 1998, 2000, Brito-Junior et al 2005, Souza and Abílio, 2006. It is important to mention that such studies frequently record the presence of the Planorbidae Biomphalaria straminea, the in semi-arid Brazil, in order to understand their structure and functioning.…”

Section: Benthic Invertebratesmentioning

confidence: 99%

Aquatic systems in semi-arid Brazil: limnology and management

et al. 2012

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Aquatic systems in semi-arid Brazil include natural shallow lakes, artificial reservoirs and intermittent streams and rivers. These systems are distinctive features in the semi-arid landscape and comprise a range of associated systems functioning as an ever-changing mosaic of dry/wet patches. Lakes and reservoirs in semi-arid Brazil are subject to important periods of water shortages, whereas rivers and streams are characterized as highly variable and driven by the extremes of water flow and its absence. Within this view a catchment-scale approach must be used to create a holistic model to conceptualize and comprehend these aquatic systems, since the aquatic environment types in the semi-arid region of Brazil incorporate broader aspects within the catchment scale such as geomorphology, vegetation, climate and land use. This paper summarizes some of the information on the aquatic systems of the Brazilian semi-arid region and shows the importance of limnological studies in this region. It also attempts to establish perspectives for future research considering the catchment as a scale for surveying biological processes and limnological characteristics of the various aquatic systems. It is presented information on their overall structure and functioning, as well as characteristics of some biological communities, such as phytoplankton, periphyton, aquatic macrophytes, benthic invertebrates and fish. The importance of the understanding of eutrophication in reservoirs and the role of the dry phase in streams is emphasized, and information on possible actions of planning and management to improve water quality of reservoirs are presented.

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Section: Benthic Invertebratesmentioning

confidence: 99%

Aquatic systems in semi-arid Brazil: limnology and management

et al. 2012

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“…Environmental factors contributed to the fluctuations in richness of groups and in density of benthic macroinvertebrates [32]. The day 60 is one that has a higher total abundance of benthic macroinvertebrates inside litter bags, which highlights the site 4.…”

Section: Discussionmentioning

confidence: 99%

Spacial and Temporal Variation of Degradation of Organic Matter by Benthic Macroinvertebrates

Ana¹,

Vieira²

2013

JEP

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Leaf litter input from riparian landscapes has been identified as both a major energy flow to stream ecosystems and as a food source for stream macroinvertebrates. In this study the benthic macroinvertebrate community was used to evaluate the decomposition of organic matter in river systems. The aim of this work was to study the decomposition of organic matter using the benthic macroinvertebrate colonization. The research was developed over five months (January 2011 to May 2011) in four different sites, distributed along the River Ferreira terminal area, northern Portugal. A litter bag experiment was used to examine the role of macroinvertebrate communities in the processing of organic material on the river. Litter bags were placed in the water and collected every 7, 15, 30, 60, 90 and 120 days. In litter bags was observed a high abundance of Oligochaeta and Chironomidae, which are characterized by being detritivorous-herbivores and filtering collectors, respectively, indicating the benthic macroinvertebrate more involved on the decomposition of organic matter. These results contributed to increase current knowledge about benthic macroinvertebrate communities and may serve as incentive for future research works.

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Application of a statistical model for the assessment of environmental quality in neotropical semi-arid reservoirs

Azevêdo

Barbosa

Viana

et al. 2017

Environ Monit Assess

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The aim of this study was to develop a statistical model to assess the environmental quality of reservoirs located in semi-arid region using metrics of anthropogenic disturbance, water quality variables, and benthic macroinvertebrate communities as indicators. The proposed model was applied to 60 sites located in three reservoirs in the Paraíba river basin, Brazilian semi-arid region. Collections were made in December 2011. In each site, we collected one sample of benthic macroinvertebrates and one water sample for the determination of physical and chemical parameters. Characterization of the landscape was made through application of 10 physical habitat protocols on each site for the collected information on disturbance and subsequent calculation of disturbance metrics. The results showed the formation of two groups: group 1, consisting of 16 minimally altered sites, and group 2, with 44 severely altered sites. The proposed statistical model was sensitive enough to detect changes. In the minimally altered group, the Chironomids Aedokritus and Fissimentum were dominant, indicating a higher environmental quality, while Coelotanypus and Chironomus were abundant in severely altered sites with lower environmental quality. The conservation and management of reservoirs in semi-arid regions should be intensified in view of the need to maintain the environmental quality of these ecosystems.

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Chironomus gr. decorus (Diptera: Chironomidae) e outros insetos aquáticos de um açude temporário do semi-árido paraibano, Brasil

Cited by 5 publications

References 11 publications

Aquatic systems in semi-arid Brazil: limnology and management

Aquatic systems in semi-arid Brazil: limnology and management

Spacial and Temporal Variation of Degradation of Organic Matter by Benthic Macroinvertebrates

Application of a statistical model for the assessment of environmental quality in neotropical semi-arid reservoirs

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