Gill histopathology and micronucleus test of Astyanax jacuhiensis (Cope, 1894) (Teleostei, Characidae) to evaluate effects caused by acute exposure to aluminum

Dalzochio, Thaís; Goldoni, Angélica; Rodrigues, Gabriela Zimmermann Prado; Petry, Ismael Evandro; Silva, Luciano Basso da; Gehlen, Günther

doi:10.5007/2175-7925.2016v29n1p75

Cited by 6 publications

(2 citation statements)

References 44 publications

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“…Dentro os grupos que estão sendo utilizados em estudos de biomonitoramento, têm-se: plantas, alguns grupos de microorganismos, mamíferos, aves, peixes e insetos (TADIELLO et al, 2014;BARBOSA e CARVALHO, 2016;OLIVEIRA et al, 2015;CANTARELI te al., 2016;DALZOCHIO et al, 2016;OLIVEIRA et al, 2014).…”

Section: Introductionunclassified

Arthropod bioindicators of environmental quality

Spiller

Garlet

2017

AGRO@MBIENTE ON-LINE

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The phylum Arthropoda is one of the most diverse groups under the terrestrial surface comprising different classes of insects that occupy different environments. Some groups have a close relationship with the habitat they occupy, responding significantly to changes in the environment, thus indicating the level of change in the environment by their presence or absence. The present study aimed to demonstrate the importance of edaphic fauna as a bioindicator of environmental quality. This is a bibliographic review based on specialized consultation of scientific articles in the databases Google Scholar, SciELO-Scientific Electronic Library and ResearchGate. The studies found that environmental quality can be measured from the diversity and abundance of arthropods that live and perform their functions in the soil. Macrofauna influences important soil chemical and physical processes such as nutrient cycling, structuring and homogenization, and increased productivity, among others. The mesofauna, besides acting on soil properties, acts on the regulation of microbial populations, is sensitive to changes and responds promptly. The groups Acari, Collembola, Coleoptera, Hymenoptera and Araneae are indicated in several studies as potential bioindicators because they are commonly sampled in different environments. The factors identified as conditioning factors of the presence of these groups are environmental heterogeneity, type of vegetation cover and availability of litter, applied management system, seasonality, soil characteristics, and anthropic activities, among others. In short, because they respond quickly, the changes are considered to be efficient biological indicators; therefore, knowing the diversity of species and their degree of interaction with the environment allows us to analyze the effects of anthropic modifications in ecosystems.Resumo: O filo Arthropoda é um dos grupos mais diversos da superfície terrestre, compreendendo diferentes classes de insetos que ocupam diversos ambientes. Alguns grupos, entretanto, apresentam relação estreita com o habitat que ocupam, respondendo de forma significativa às modificações no ambiente, o que acaba indicando o nível de alteração desse mesmo ambiente através de sua presença ou ausência. O presente estudo objetivou demonstrar a importância da fauna edáfica como bioindicadora de qualidade ambiental. Trata-se de uma revisão bibliográfica baseada em consulta especializada de artigos científicos nos bancos de dados Google Acadêmico, SciELO-Scientific Eletronic Library e ResearchGate. Os trabalhos encontrados apontaram que a qualidade ambiental pode ser mensurada a partir da diversidade e abundância de artrópodes que vivem e desempenham suas funções no solo. A macrofauna influencia importantes processos químicos e físicos do solo como a ciclagem de nutrientes, estruturação e homogeneização, aumento da produtividade, dentre outros. Já a mesofauna, além de atuar sobre as propriedades edáficas, atua na regulação de populações microbianas e é sensível às alterações, respondendo pr...

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Section: Introductionunclassified

Arthropod bioindicators of environmental quality

Spiller

Garlet

2017

AGRO@MBIENTE ON-LINE

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“…Such damages may vary depending on the concentration and species used (Aris et al, 2014). Fish are among the most investigated organisms, given their environmental exposure to this and others substances (Dalzochio et al, 2016;Nabinger et al, 2017;Rodrigues et al, 2018).…”

Section: Introductionmentioning

confidence: 99%

17Î±-ethinyl estradiol induces behavioral and reproductive damages in zebrafish (Danio rerio)

Schuster

Rodrigues

Zwetsch

et al. 2024

Ecotoxicol. Environ. Contam.

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Synthetic estrogen 17α-ethinyl estradiol (EE2) is recognized for its ability to cause endocrine disruption in aquatic organisms and its high resistance to environmental degradation, being found in Brazilian waterbodies up to 100 ng L -1 . Thus, the aim of this study was to evaluate the exploratory behavior and the histological effects on zebrafish gonads, caused by environmentally relevant concentrations of EE2. Females were exposed to nominal concentrations of 25 ng L -1 and 100 ng L -1 EE2 for 21 days. After that, a behavioral and histological analysis of gonads was performed. The EE2 caused the reduction of the exploratory activity of the animals, when observed the behavior, and an acceleration of the maturation process of the oocytes evaluated in the histological analysis. Considering the results obtained after the exposure to EE2, we highlight the concern about the potential risks it may cause to the aquatic biota, alerting to the need to control and monitor these micropollutants present in Brazilian water resources.

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