The riverine bioreactor: An integrative perspective on biological decomposition of organic matter across riverine habitats

Peralta‐Maraver, Ignacio; Stubbington, Rachel; Arnon, Shai; Kratina, Pavel; Krause, Stefan; Cionek, Vivian de Mello; Leite, Nei Kavaguichi; Silva, Aurea Luiza Lemes da; Thomaz, Sidinei Magela; Posselt, Malte; Milner, Victoria S.; Momblanch, Andrea; Moretti, Marcelo S.; Nóbrega, Rodolfo; Perkins, Daniel M.; Petrucio, Maurício Mello; Reche, Isabel; Saito, Victor S.; Sarmento, Hugo; Strange, Emily; Taniwaki, Ricardo Hideo; White, James C.; Alves, Gustavo Henrique Zaia; Robertson, Anne L.

doi:10.1016/j.scitotenv.2021.145494

Cited by 17 publications

(10 citation statements)

References 162 publications

Supporting

Mentioning

Contrasting

Unclassified

Order By: Relevance

“…Its relationship with the water body provides details like bacterial activity, availability of nutrients, in the water body, stratification. During summers, the DO increases because of increased temperature and bright sunlight [74] . BOD is a measure of contamination of organic matter in water and is the quantity of dissolved oxygen needed for the biochemical decomposition of organic compounds and the oxidation of certain inorganic materials.…”

Section: Resultsmentioning

confidence: 99%

COVID-19 pandemic in Uttarakhand, India: Environmental recovery or degradation?

Nandan

Siddiqui

Singh

et al. 2021

Journal of Environmental Chemical Engineering

View full text Add to dashboard Cite

The human coronavirus disease-2019 (COVID-19) caused by SARS-CoV-2 is now a global pandemic. Personal hygiene such as hand-washing, the use of personal protective equipment, and social distancing via local and national lockdowns are used to reduce the risk of transmission of SARS-CoV-2. COVID-19 and the associated lockdowns may have significant impacts on environmental quality and ergonomics. However, limited studies exists on the impacts of COVID-19 and the associated lockdowns on environmental quality and ergonomics in low-income settings. Therefore, the present study investigated the impacts of the COVID-19 outbreak on socioeconomics, ergonomics and environment (water quality, air quality and noise) in Uttrakhand, India. Approximately 55% of respondents experienced headaches, and the other common health-related issue was back pain, with 45% of respondents having problems with their backs. Water and air quality significantly improved during the lockdown relative to the pre-lockdown period, but was observed to return to their previous characteristics afterwards. Lockdowns significant increased the concentration of indoor air pollutants while noise pollution levels significantly declined. In summary, lockdowns have adverse impacts on ergonomics, resulting in work-related human health risks. The impacts of lockdowns on environmental quality are mixed: temporary improvements on water and air quality, and noise reduction were observed, but indoor air quality deteriorated. Therefore, during lockdowns there is a need to minimize the adverse environmental and ergonomic impacts of lockdowns while simultaneously enhancing the beneficial impacts.

show abstract

Section: Resultsmentioning

confidence: 99%

COVID-19 pandemic in Uttarakhand, India: Environmental recovery or degradation?

Nandan

Siddiqui

Singh

et al. 2021

Journal of Environmental Chemical Engineering

View full text Add to dashboard Cite

show abstract

“…Aquatic insects underpin several key functions and services that freshwater ecosystems provide to tropical and subtropical regions. These include detritus processing and biogeochemical cycling, bioturbation, biological control and food sources that fuel and stabilize aquatic and terrestrial food webs [41,42]. Therefore, long-term anthropogenic impact monitoring and mitigation strategies are pivotal in maintaining freshwater ecosystem integrity.…”

Section: Discussionmentioning

confidence: 99%

Pervasive decline of subtropical aquatic insects over 20 years driven by water transparency, non-native fish and stoichiometric imbalance

et al. 2021

Self Cite

View full text Add to dashboard Cite

Insect abundance and diversity are declining worldwide. Although recent research found freshwater insect populations to be increasing in some regions, there is a critical lack of data from tropical and subtropical regions. Here, we examine a 20-year monitoring dataset of freshwater insects from a subtropical floodplain comprising a diverse suite of rivers, shallow lakes, channels and backwaters. We found a pervasive decline in abundance of all major insect orders (Odonata, Ephemeroptera, Trichoptera, Megaloptera, Coleoptera, Hemiptera and Diptera) and families, regardless of their functional role or body size. Similarly, Chironomidae species richness decreased over the same time period. The main drivers of this pervasive insect decline were increased concurrent invasions of non-native insectivorous fish, water transparency and changes to water stoichiometry (i.e. N : P ratios) over time. All these drivers represent human impacts caused by reservoir construction. This work sheds light on the importance of long-term studies for a deeper understanding of human-induced impacts on aquatic insects. We highlight that extended anthropogenic impact monitoring and mitigation actions are pivotal in maintaining freshwater ecosystem integrity.

show abstract

“…Freshwater ecosystems in the UIB evolve from glacial lakes and alpine rivers at high elevations to lowland rivers and wetlands at mountain foothills. These factors are known to generate drastic variations in biodiversity, metabolic performance, nutrient uptake, and thereby, the services ecosystems provide (Peralta‐Maraver et al., 2021). Those ecosystems sustain iconic and endangered species of flora and fauna which play a key role in biodiversity in the region such as the snow leopard (Khan & Baig, 2020) and the Indus River Dolphin (Braulik et al., 2015).…”

Section: Integrated Earth System Processesmentioning

confidence: 99%

Knowledge Priorities on Climate Change and Water in the Upper Indus Basin: A Horizon Scanning Exercise to Identify the Top 100 Research Questions in Social and Natural Sciences

et al. 2022

Self Cite

View full text Add to dashboard Cite

River systems originating from the Upper Indus Basin (UIB) are dominated by runoff from snow and glacier melt and summer monsoonal rainfall. These water resources are highly stressed as huge populations of people living in this region depend on them, including for agriculture, domestic use, and energy production. Projections suggest that the UIB region will be affected by considerable (yet poorly quantified) changes to the seasonality and composition of runoff in the future, which are likely to have considerable impacts on these supplies. Given how directly and indirectly communities and ecosystems are dependent on these resources and the growing pressure on them due to ever‐increasing demands, the impacts of climate change pose considerable adaptation challenges. The strong linkages between hydroclimate, cryosphere, water resources, and human activities within the UIB suggest that a multi‐ and inter‐disciplinary research approach integrating the social and natural/environmental sciences is critical for successful adaptation to ongoing and future hydrological and climate change. Here we use a horizon scanning technique to identify the Top 100 questions related to the most pressing knowledge gaps and research priorities in social and natural sciences on climate change and water in the UIB. These questions are on the margins of current thinking and investigation and are clustered into 14 themes, covering three overarching topics of “governance, policy, and sustainable solutions”, “socioeconomic processes and livelihoods”, and “integrated Earth System processes”. Raising awareness of these cutting‐edge knowledge gaps and opportunities will hopefully encourage researchers, funding bodies, practitioners, and policy makers to address them.

show abstract

The riverine bioreactor: An integrative perspective on biological decomposition of organic matter across riverine habitats

Cited by 17 publications

References 162 publications

COVID-19 pandemic in Uttarakhand, India: Environmental recovery or degradation?

COVID-19 pandemic in Uttarakhand, India: Environmental recovery or degradation?

Pervasive decline of subtropical aquatic insects over 20 years driven by water transparency, non-native fish and stoichiometric imbalance

Knowledge Priorities on Climate Change and Water in the Upper Indus Basin: A Horizon Scanning Exercise to Identify the Top 100 Research Questions in Social and Natural Sciences

Contact Info

Product

Resources

About