Urban effluents affect the early development stages of Brazilian fish species with implications for their population dynamics

Barreto, Luiza Santos; Souza, Angie Thaisa da Costa; Martins, César C.; Araújo, Sabrina B. L.; Ribeiro, Ciro Alberto de Oliveira

doi:10.1016/j.ecoenv.2019.109907

Cited by 12 publications

(3 citation statements)

References 75 publications

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“…In 62.50% of the points, few or no animals were observed in the waters of the microwatershed. This condition of degradation of urban rivers causes the disappearance of several species of animals, according to Barreto et al, (2020). Similarly, the loss of aquatic biodiversity may be related to the growing urbanization of Capanema.…”

Section: Rapid Protocol For Environmental Assessment (Rpea)mentioning

confidence: 99%

“…Silva et al, (2016) and Costa et al, (2021) report that the main conditioning factor for fauna diversity is associated with water quality, as the highlighted points are in the region with the greatest structural and environmental problems, these results are justified. Points 14 and 15 refer to tributaries whose main conditioning factor is the presence of domestic effluents from homes located in the vicinity and narrowing and silting of the channel, which impairs the oxygenation of the water body, as suggested by Barreto et al, (2020) and Awogbemi and Panda (2021).…”

Section: Idw Interpolation Versus Rpeamentioning

confidence: 99%

See 1 more Smart Citation

Integration of environmental assessment models: A study of the impact on urban micro-watersheds in the Amazon-Brazil

Sousa

Miranda

Pereira

et al. 2022

Rev. Bras. Geog. Fis.

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The micro-watershed of the Ouricuri river stands out for serving a large portion of the local population, however, the lack of sanitation, construction in permanent preservation areas, the release of effluents, and other highimpact activities influence the maintenance of the local ecosystem. The study aimed to promote the integration of environmental assessment methodologies such as Rapid Protocol for Environmental Assessment (RPEA) and interpolation by the Inverse Distance Weighted (IDW) method to evaluate the impact to which the study area is subject. The integration of techniques enabled to verify that the points P9 and P10 are in anoxic conditions, with values 60% below what is recommended by Resolution N° 357/05 of CONAMA for class 2 water, and the other points varying between high and moderate environmental risk, with emphasis on Points P4 and P5, corresponding to the Ouricuri River, where the situation requires greater attention. The Total Impact in the study area suggests that the Ouricuri microwatershed needs immediate intervention, as in the sections of the Ouricuri River located in the commercial center and its tributaries, which are smaller streams, there is great pressure from the municipal sanitation system and buildings in protected areas, promoting serious changes to the local ecosystem and consequently to people's health.

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Section: Rapid Protocol For Environmental Assessment (Rpea)mentioning

confidence: 99%

Section: Idw Interpolation Versus Rpeamentioning

confidence: 99%

Integration of environmental assessment models: A study of the impact on urban micro-watersheds in the Amazon-Brazil

Sousa

Miranda

Pereira

et al. 2022

Rev. Bras. Geog. Fis.

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“…We review knowledge of the application of physiological biomarkers in subtropical and tropical fish species, which we take to mean those that can occupy habitats where average monthly temperatures do not fall below 18°C. Many subtropical and tropical freshwater ecosystems suffer from pollution and limited environmental regulation, so exposure to contaminants represents a serious hazard to the population health of resident fishes (Langiano and Martinez 2008; Barreto et al, 2020; Beltrão et al, 2019; Braz‐Mota et al, 2015; Cazenave et al, 2009). At the same time, tropical ecosystems are relatively poorly studied in terms of ecotoxicology, despite harboring important resources in terms of biodiversity (Daam & Van Den Brink, 2010; Lacher & Goldstein, 1997; Wang et al, 2019).…”

Section: Introductionmentioning

confidence: 99%

Use of complex physiological traits as ecotoxicological biomarkers in tropical freshwater fishes

et al. 2021

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We review the use of complex physiological traits, of tolerance and performance, as biomarkers of the toxicological effects of contaminants in subtropical and tropical freshwater fishes. Such traits are growing in relevance due to climate change, as exposure to contaminants may influence the capacity of fishes to tolerate and perform in an increasingly stressful environment. We review the evidence that the critical oxygen level, a measure of hypoxia tolerance, provides a valuable biomarker of impacts of diverse classes of contaminants. When coupled with measures of cardiorespiratory variables, it can provide insight into mechanisms of toxicity. The critical thermal maximum, a simple measure of tolerance of acute warming, also provides a valuable biomarker despite a lack of understanding of its mechanistic basis. Its relative ease of application renders it useful in the rapid evaluation of multiple species, and in understanding how the severity of contaminant impacts depends upon prevailing environmental temperature. The critical swimming speed is a measure of exercise performance that is widely used as a biomarker in temperate species but very few studies have been performed on subtropical or tropical fishes. Overall, the review serves to highlight a critical lack of knowledge for subtropical and tropical freshwater fishes. There is a real need to expand the knowledge base and to use physiological biomarkers in support of decision making to manage tropical freshwater fish populations and their habitats, which sustain rich biodiversity but are under relentless anthropogenic pressure.

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Assessing the pollution and ecotoxicological status of the Iguaçu River, southern Brazil: A review

de Morais,

Barreto,

de Souza

et al. 2024

Integr Envir Assess & Manag

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The degradation of water resources available for human consumption is increasing with the continuous release of chemicals into aquatic environments and their inefficient removal in wastewater treatment. Several watersheds in Brazil, such as the Iguaçu River, are impacted by multiple sources of pollution and lack information about their pollution status. The Iguaçu River Basin has great socioeconomic and environmental relevance both for the supply of water resources and its high hydroelectric potential, as well as for the high rate of endemism of its ichthyofauna. Also, it is home to large conservation units, such as the Iguaçu National Park, recognized by Unesco as a Natural Heritage of Humanity. Thus, the current review discusses the chemical pollution in the Iguaçu River Basin (IRB) approaching: i) the main sources of pollution; ii) the occurrence of inorganic and organic micropollutants; iii) the available ecotoxicological data, and iv) the socioeconomic impacts in three regions of the upper, middle, and lower IRB. Different studies reported relevant levels of emerging contaminants, persistent organic pollutants (POPs), toxic metals, and polycyclic aromatic hydrocarbons (PAHs), detected in the water and sediment samples, especially in the upper IRB region, associated with domestic and industrial effluents. Additionally, significant concentrations of pesticides and toxic metals were also detected in the lower IRB, revealing that agricultural practices are also relevant sources of chemicals for this watershed. More recently, studies indicated an association between fish pathologies and the detection of micropollutants in the water and sediments from IRB. The identification of the main sources of pollutants, associated with the distribution of hazardous chemicals in the IRB and their potential effects on the biota, as described in this review, represents an important strategy to support water management by public authorities for reducing potential risks of the local endemic biodiversity and exposed human populations.

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Urban effluents affect the early development stages of Brazilian fish species with implications for their population dynamics

Cited by 12 publications

References 75 publications

Integration of environmental assessment models: A study of the impact on urban micro-watersheds in the Amazon-Brazil

Integration of environmental assessment models: A study of the impact on urban micro-watersheds in the Amazon-Brazil

Use of complex physiological traits as ecotoxicological biomarkers in tropical freshwater fishes

Assessing the pollution and ecotoxicological status of the Iguaçu River, southern Brazil: A review

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