Biological Monitoring Using Macroinvertebrates as Bioindicators of Water Quality of Maroaga Stream in the Maroaga Cave System, Presidente Figueiredo, Amazon, Brazil

Uherek, Christiane Brito; Gouveia, Fernando Bernardo Pinto

doi:10.1155/2014/308149

Cited by 35 publications

(14 citation statements)

References 10 publications

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“…Toxicity assessment of samples collected from the environment requires the selection of appropriate biological indicators (Kuczyńska et al, 2003;Uherek et al, 2014;Ibáñez et al, 2015), i.e. organisms particularly sensitive to the effects of specific pollutants, and the toxic effects must be indicated as clearly defined symptoms (Walker et al, 2002(Walker et al, , 2013Kumar et al, 2015).…”

Section: Introductionmentioning

confidence: 99%

The use of computer image analysis in a Lemna minor L. bioassay

et al. 2016

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Our study presents a low-cost method (no expensive hardware platforms required) of quantified biomonitoring based on computer image analysis. The negative influence of toxins on surface waters was analysed. The method was verified on widespread freshwater macrophyte Lemna minor to test populations treated with non-ionic detergents. We showed that the proposed automated bioassay has a broad applicability in assessing the negative impacts of aquatic toxicants. This approach enabled fast and precise evaluation of the morphometric parameters of the duckweed test population. We observed that growth rate of L. minor reacts to non-ionic detergents, which is reflected by the change in the surface area. The decrease in the growth of L. minor was revealed at high doses of detergents. This test proved to be highly useful, because it is well repeatable and fast in its implementation. Unlike classical bioassays, the proposed test allows the elimination of measurement errors, resulting from observers' subjectivity.

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Section: Introductionmentioning

confidence: 99%

The use of computer image analysis in a Lemna minor L. bioassay

et al. 2016

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“…Brazilian environmental laws and regulatory processes only require that water quality assessments are based on physical, chemical and bacteriological parameters. As a result, macroinvertebrate metrics have only been used in the recent past as bioindicators of water quality in Brazil, especially in the Amazon region (Silveira et al 2005; Uherek and Gouveia 2014).…”

Section: Introductionmentioning

confidence: 99%

Water quality index calculated from biological, physical and chemical attributes

Rocha

Andrade

Lopes

2014

Environ Monit Assess

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To ensure a safe drinking water supply, it is necessary to protect water quality. To classify the suitability of the Orós Reservoir (Northeast of Brazil) water for human consumption, a Water Quality Index (WQI) was enhanced and refined through a Principal Component Analysis (PCA). Samples were collected bi-monthly at seven points (P1 - P7) from July 2009 to July 2011. Samples were analysed for 29 physico-chemical attributes and 4 macroinvertebrate metrics associated with the macrophytes Pistia stratiotes and Eichhornia crassipes. PCA allowed us to reduce the number of attributes from 33 to 12, and 85.32% of the variance was explained in five dimensions (C1 - C5). Components C1 and C3 were related to water-soluble salts and reflect the weathering process, while C2 was related to surface runoff. C4 was associated with macroinvertebrate diversity, represented by ten pollution-resistant families. C5 was related to the nutrient phosphorus, an indicator of the degree of eutrophication. The mean values for the WQIs ranged from 49 to 65 (rated as fair), indicating that water can be used for human consumption after treatment. The lowest values for the WQI were recorded at the entry points to the reservoir (P3, P1, P5, and P4), while the best WQIs were recorded at the exit points (P6 and P7), highlighting the reservoir's purification ability. The proposed WQI adequately expressed water quality, and can be used for monitoring surface water quality.

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“…Increased production followed by expanded discharge of such materials into water could have a detrimental effect on the health of aquatic biota [24]. Aquatic macroinvertebrates are widely used in ecotoxicology studies as model organisms for determining water quality [25]. Non-biting midges (Diptera, Chironomidae) are a widely distributed family of aquatic insects with a great ability to adapt to diverse water ecosystems.…”

Section: Introductionmentioning

confidence: 99%

Histopathology of Chironomus riparius (Diptera, Chironomidae) exposed to metal oxide nanoparticles

Stojanović

Milošević

Vitorovic

et al. 2021

ARCH BIOL SCI BELGRA

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As the production of metal-based nanomaterials increases, it is inevitable that nano-scale products and byproducts will enter the aquatic environment. In terms of global production, the most abundant nano-oxides are TiO2, CeO2 and Fe3O4 nanoparticles. Chironomus riparius is commonly used for ecotoxicological assessment and defining its histopathological biomarkers that showcase the toxic effect of tested nanoparticles should lead to a better understanding of the consequences of nanomaterial accumulation in aquatic ecosystems. In this study, a histological description of the digestive and excretory systems as well as the fat body structure of C. riparius larvae is provided. In addition, potential histological biomarkers of nano-oxide toxicity were determined based on the obtained histopathological alterations in organs. Vacuolization was observed in epithelial cells of midgut region I that were treated with nano-Fe3O4 as well as in Malpighian tubules treated with nano-Fe3O4 and nano-CeO2. Larvae exposed to nano-TiO2 showed alterations in the fat body and midgut region II tissue architecture. Additionally, shortening of the intestinal brush border was determined in groups exposed to nano-Fe3O4. These results reveal the high sensitivity of these organs, which can be used as biomarkers in histopathological assessment and therefore lead to further improvement of existing methodology in ecotoxicological studies.

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Biological Monitoring Using Macroinvertebrates as Bioindicators of Water Quality of Maroaga Stream in the Maroaga Cave System, Presidente Figueiredo, Amazon, Brazil

Cited by 35 publications

References 10 publications

The use of computer image analysis in a Lemna minor L. bioassay

The use of computer image analysis in a Lemna minor L. bioassay

Water quality index calculated from biological, physical and chemical attributes

Histopathology of Chironomus riparius (Diptera, Chironomidae) exposed to metal oxide nanoparticles

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