Insights on the freshwater microbiomes metabolic changes associated with the world's largest mining disaster

Cordeiro, Marcelle Candido; Garcia, Gizele D.; Rocha, André Medeiros; Tschoeke, Diogo A.; Campeão, Mariana E.; Appolinario, Luciana; Soares, Ana Carolina; Leomil, Luciana; Fróes, Adriana M.; Bahiense, Laura; Rezende, Carlos Eduardo de; Almeida, Marcelo Gomes de; Rangel, Thiago Pessanha; Oliveira, Bráulio Cherene Vaz de; Almeida, Diogo Quitete Ribeiro de; Thompson, Mateus C.; Thompson, Cristiane C.; Thompson, Fabiano L.

doi:10.1016/j.scitotenv.2018.11.112

Cited by 82 publications

(23 citation statements)

References 38 publications

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“…Yet, at the microbial community level, our understanding of how past environmental conditions affect future ecosystem function is limited. It has been observed that lasting changes in the abundance of taxa result from disturbances like oil spills ( 8, 9 ), antibiotic administration ( 10 ), dietary oscillations ( 11 ), and infection ( 12 ). In the human gut microbiome, it has been demonstrated that infection 13 and obesogenic diet exposure 12 induce a memory that affects the ecological outcome of subsequent perturbations.…”

Section: Main Textmentioning

confidence: 99%

Ecological memory of prior nutrient exposure in the human gut microbiome

Letourneau

Holmes

et al. 2021

Preprint

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Many ecosystems retain an ecological memory of past conditions that affects responses to future stimuli. However, it remains unknown what mechanisms and dynamics may govern such a memory in microbial communities. Here, in both a human dietary intervention cohort and an artificial gut, we show that the human gut microbiome encodes a memory of past carbohydrate exposures. Changes in the relative abundance of primary degraders were sufficient to enhance metabolism, and these changes were mediated by transcriptional changes within hours of initial exposure. We further found that ecological memory of one carbohydrate species impacted metabolism of others. These findings demonstrate that the human gut microbiome's metabolic potential reflects dietary exposures over preceding days and changes within hours of exposure to a novel nutrient.

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Section: Main Textmentioning

confidence: 99%

Ecological memory of prior nutrient exposure in the human gut microbiome

Letourneau

Holmes

et al. 2021

Preprint

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“…Since the tailings contained a certain amount of water, it created conditions for the mudflow after the tailings dam failure. The tailings waste entered the river following the original branch channel, which in turn enlarged the impact of this disaster with extremely high turbidity and metal concentrations, lower dissolved oxygen, and change of microbial communities which would impact the growth and reproduction of aquatic creatures [62,63]. [28].…”

Section: Hazard Chain Caused By This Eventmentioning

confidence: 99%

Watch Out for the Tailings Pond, a Sharp Edge Hanging over Our Heads: Lessons Learned and Perceptions from the Brumadinho Tailings Dam Failure Disaster

Cheng

Cui

et al. 2021

Remote Sensing

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A catastrophic tailings dam failure disaster occurred in Brumadinho, Brazil on 25 January 2019, which resulted in over 270 casualties, 24,000 residents evacuated, and a huge economic loss. Environmental concerns were raised for the potential pollution of water due to tailings waste entering the Paraopeba River. In this paper, a detailed analysis has been carried out to investigate the disaster conditions of the Brumadinho dam failure using satellite images with different spatial resolutions. Our in-depth analysis reveals that the hazard chain caused by this failure contained three stages, namely dam failure, mudflow, and the hyperconcentrated flow in the Paraopeba River. The variation characteristics of turbidity of the Rio Paraopeba River after the disaster have also been investigated using high-resolution remote sensing images, followed by a qualitative analysis of the impacts on the downstream reservoir of the Retiro Baixo Plant that was over 300 km away from the dam failure origin. It is believed that, on the one hand, the lack of dam stability management at the maintenance stage was the main cause of this disaster. On the other hand, the abundant antecedent precipitation caused by extreme weather events should be a critical triggering factor. Furthermore, the spatiotemporal pattern mining of global tailings dam failures revealed that the Brumadinho dam disaster belonged to a Consecutive Hot Spot area, suggesting that the regular drainage inspection, risk assessment, monitoring, and early warning of tailings dam in Consecutive Hot Spot areas still need to be strengthened for disaster mitigation.

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“…1) Microbial diversity and increase of bacteria populations. Studies on the effects of the iron ore tailings released by the Fundão Dam collapse indicate that the sediments could be a source of chronic contamination on microbial diversity and activity in distinct ecosystems, showing that as long as the tailings remain within the river and deposited on its adjacent lands, it is an issued that need to be addressed by the restoration process (Cordeiro et al, 2019).…”

Section: Prefacementioning

confidence: 99%

“…portions of the Rio Doce watershed, as well as the sediments in estuarine areas, still raise concerns particularly in relation to the potential harm to different groups of organisms, such as microorganisms, crabs, shrimps and fishes.13 Moreover, the studies demonstrate that the current conditions are still capable of affecting the richness and diversity of aquatic organisms when compared to the areas that were not impacted by the tailings.In particular, two studies(de Carvalho et al, 2018;Cordeiro et al, 2019) have also suggested that the quality of the river waters could represent a chronic risk to human health over the long term. It is important to highlight that the results can be variable depending the stretch of the watershed under analysis, even in the affected areas.…”

mentioning

confidence: 99%

Source-to-sea and landscape approaches: integrating water quality and biodiversity conservation towards the restoration of the Rio Doce watershed

Brito¹,

Barbosa²,

May³

et al. 2021

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The report contextualises the current status of water quality and biodiversity in the Rio Doce watershed, providing selected data and information on the physical, chemical and biological quality of the water and an overview of the terrestrial, freshwater and marine biodiversity since the dam rupture. A review of the integrated approaches already adopted in the Rio Docerestoration actions is also provided, focusing mainly on the TTAC programmes that in some respect embody the source-to-sea and landscape approaches in their conception. The Technical Report suggests pathways toward building a combined approach to restore water quality and biodiversity in the Rio Doce watershed, taking advantage of such actions already implementedby Renova Foundation and its partners.

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Insights on the freshwater microbiomes metabolic changes associated with the world's largest mining disaster

Cited by 82 publications

References 38 publications

Ecological memory of prior nutrient exposure in the human gut microbiome

Ecological memory of prior nutrient exposure in the human gut microbiome

Watch Out for the Tailings Pond, a Sharp Edge Hanging over Our Heads: Lessons Learned and Perceptions from the Brumadinho Tailings Dam Failure Disaster

Source-to-sea and landscape approaches: integrating water quality and biodiversity conservation towards the restoration of the Rio Doce watershed

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