The multiscale effects of stream restoration on water quality

Thompson, Joshua; Pelc, C.E.; Brogan, William R.; Jordan, Thomas E.

doi:10.1016/j.ecoleng.2018.09.016

Cited by 22 publications

(14 citation statements)

References 42 publications

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“…In this context, streams have hydrological functions in the environment once they receive direct discharge of wastewater. These pollutant loads are diluted by stream flowrates and are biochemically transformed by the microorganisms present in these ecosystems (Thompson et al 2018). However, environmental degradation have been threatening these ecosystems functions, especially by the provision of pollutants that change natural characteristics of the environment, as well as presenting some toxicity level to the biota (MEA 2005).…”

Section: Streams Monitoring Relevancementioning

confidence: 99%

Estrogenic Hormones in São Paulo Waters (Brazil) and Their Relationship with Environmental Variables and Sinapis alba Phytotoxicity

Coelho

Jesus

Kohatsu

et al. 2020

Water Air Soil Pollut

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Present study evaluated the relationship between estrogenic hormones concentrations (17ethinylestradiol and 17β-estradiol) in surface waters in the Metropolitan Region of São Paulo (Brazil) and environmental variables. Four sampling stations were monitored ranging from a protected area to streams discharging human effluent in and around Billings Reservoir. Four sampling campaigns were carried out in each seasonal period: DRY and WET. Samples for hormone analysis (in ng L -1 ) were concentrated (1000X) using solid phase extraction C 18 cartridges and analysed by liquid chromatography coupled to quadrupole mass spectrometry detection, with 100 ng L -1 limit of quantification. Water temperature, pH, electrical conductivity (EC) and total dissolved solids were determined in situ; total phosphorus and Sinapis alba bioassays were performed subsequently. Reservoir active capacity (AC) and precipitation were also obtained. Estrogenic hormones concentrations were always below limit of quantification at pristine site; at the other sampling stations, 17β-estradiol concentrations varied from below limit of quantification to 1,720 ng L -1 and 17ethinylestradiol from below limit of quantification to 1,200 ng L -1 , with the highest concentrations found in the streams discharging into the reservoir. These streams showed higher Pearson's correlation between 17-ethinylestradiol, total phosphorus, and electrical conductivity when compared with reservoir stations. Germination index and EC presented negative correlation (Pearson's r = -0.61), denoting a phytotoxicity increase with EC increment. AC influenced the dilution of pollutants and showed negative correlations with total phosphorus (Pearson's r = -0.56). These results highlight the relevance of including streams in water monitoring programs, since they are important pollutants loads into watersheds.

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Section: Streams Monitoring Relevancementioning

confidence: 99%

Estrogenic Hormones in São Paulo Waters (Brazil) and Their Relationship with Environmental Variables and Sinapis alba Phytotoxicity

Coelho

Jesus

Kohatsu

et al. 2020

Water Air Soil Pollut

View full text Add to dashboard Cite

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“…While the dataset is limited, these initial results suggest that the use of logs and wooden weirs can have beneficial effects to increase phosphorus retention, allowing the RENA reach to more closely resemble natural conditions like the ones observed at PRIS. Some of the most common structures in international restoration programs are boulder weirs, cross‐vanes, and coarse woody debris (e.g., Bernhardt et al 2005; Thompson et al 2018). The effects of these interventions on morphological (e.g., channel width and depth) and a/biotic characteristics (e.g., changes in water velocity, sediment composition, and aquatic biota abundance and diversity) are relatively well‐known for higher‐latitude streams (e.g., Roni et al 2006; Hines and Hershey 2011); however, there is a significant lack of information for sub/tropical streams.…”

Section: Effects Of Wood Additions On Nutrient Retentionmentioning

confidence: 99%

Assessing Restoration of Ecosystem Functioning in Brazilian Subtropical and Tropical Streams

Cunha

Saltarelli

Bega

et al. 2022

Limnology & Oceanogr Bull

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Rivers and streams provide many ecosystem services, including provision of food, water purification, and nutrient abatement. Ecosystem functioning, the set of processes that regulate the fluxes of energy and matter, is the backbone of ecosystem services. A myriad of human impacts affects the functioning of running waters. To reduce these impacts, strategies for conservation and recovery of riparian vegetation, as well as direct interventions for stream restoration, have been carried out. However, these actions have been more limited in sub/tropical than in temperate regions. Based on case studies from southeastern Brazil and comparisons with their temperate counterparts, we illustrate and discuss how restoration of riparian canopy cover and stream reconfiguration through the addition of wood can influence two key ecosystem processes: nutrient retention and metabolism. Our findings indicate that the distinctive environmental features of the sub/tropical climate strongly shape the effect of stream restoration on ecosystem functioning. However, as in the temperate climate, effects are rarely monitored for a long time after the restoration, indicating the need for their longer-term assessment. Understanding how restoration evolves over time to impact the functioning of sub/tropical streams is fundamental for the management and conservation of these strategic water bodies and the relevant ecosystem services they provide.

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“…While the dataset is limited, these initial results suggest that the use of logs and wooden weirs can have beneficial effects to increase phosphorus retention, allowing the RENA reach to more closely resemble natural conditions like the ones observed at PRIS. Some of the most common structures in international restoration programs are boulder weirs, cross-vanes, and coarse woody debris (e.g., Bernhardt et al 2005;Thompson et al 2018). The effects of these interventions on morphological (e.g., channel width and depth) and a/biotic characteristics (e.g., changes in water velocity, sediment composition, and aquatic biota abundance and diversity) are relatively well-known for higher-latitude streams (e.g., Roni et al 2006;Hines and Hershey 2011); however, there is a significant lack of information for sub/tropical streams.…”

Section: Effects Of Wood Additions On Nutrient Retentionmentioning

confidence: 99%

Limnology and Oceanography Bulletin Volume 31 Number 1 November 2021 1–29

2022

Limnology & Oceanogr Bull

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The multiscale effects of stream restoration on water quality

Cited by 22 publications

References 42 publications

Estrogenic Hormones in São Paulo Waters (Brazil) and Their Relationship with Environmental Variables and Sinapis alba Phytotoxicity

Estrogenic Hormones in São Paulo Waters (Brazil) and Their Relationship with Environmental Variables and Sinapis alba Phytotoxicity

Assessing Restoration of Ecosystem Functioning in Brazilian Subtropical and Tropical Streams

Limnology and Oceanography Bulletin Volume 31 Number 1 November 2021 1–29

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