scholarly journals Invertebrate and Microbial Response to Hyporheic Restoration of an Urban Stream

Water ◽  
2021 ◽  
Vol 13 (4) ◽  
pp. 481
Author(s):  
Sarah A. Morley ◽  
Linda D. Rhodes ◽  
Anne E. Baxter ◽  
Giles W. Goetz ◽  
Abigail H. Wells ◽  
...  
Keyword(s):  
Hyporheic Zone ◽  
Habitat Diversity ◽  
Urban Stream ◽  
Floodplain Restoration ◽  
Design Elements ◽  
Biological Communities ◽  
Taxa Richness ◽  
Restoration Technique ◽  
Microbial Response ◽  
Face Complex

All cities face complex challenges managing urban stormwater while also protecting urban water bodies. Green stormwater infrastructure and process-based restoration offer alternative strategies that prioritize watershed connectivity. We report on a new urban floodplain restoration technique being tested in the City of Seattle, USA: an engineered hyporheic zone. The hyporheic zone has long been an overlooked component in floodplain restoration. Yet this subsurface area offers enormous potential for stormwater amelioration and is a critical component of healthy streams. From 2014 to 2017, we measured hyporheic temperature, nutrients, and microbial and invertebrate communities at three paired stream reaches with and without hyporheic restoration. At two of the three pairs, water temperature was significantly lower at the restored reach, while dissolved organic carbon and microbial metabolism were higher. Hyporheic invertebrate density and taxa richness were significantly higher across all three restored reaches. These are some of the first quantified responses of hyporheic biological communities to restoration. Our results complement earlier reports of enhanced hydrologic and chemical functioning of the engineered hyporheic zone. Together, this research demonstrates that incorporation of hyporheic design elements in floodplain restoration can enhance temperature moderation, habitat diversity, contaminant filtration, and the biological health of urban streams.

Postsettlement Alluvium Removal: A Novel Floodplain Restoration Technique (Wisconsin)

2009 ◽  
Vol 27 (2) ◽  
pp. 136-139 ◽  
Author(s):  
E. G. Booth ◽  
S. P. Loheide ◽  
R. D. Hansis
Keyword(s):  
Floodplain Restoration ◽  
Restoration Technique

scholarly journals Lateral and longitudinal chloride dynamics in an urbanizing watershed in Southern Ontario: a spatial cross-correlation modelling approach

2021 ◽  
Author(s):  
Bhaswati Mazumder
Keyword(s):  
Time Series ◽  
Cross Correlation ◽  
Hyporheic Zone ◽  
Time Series Data ◽  
Urban Stream ◽  
Series Data ◽  
Catchment Scale ◽  
Southern Ontario ◽  
Urbanizing Watershed ◽  
Correlation Modelling

The application of spatial cross-correlation modelling was tested on continuous time series of electrical conductivity to estimate lateral and longitudinal chloride dynamics in an urbanizing watershed in Southern Ontario. Overall, the model appeared more robust for the winter salting season than for the summer growing season. The winter results showed shorter travel times with higher velocity longitudinally (upstream to downstream) in an urban stream reach with more impervious surfaces than in a rural reach with more permeable surfaces. The lateral exchange rates (stream-hyporheic zone) were observed to be affected by both local and catchment-scale land use and soil profiles. Cross-correlation results and time series data also indicated that road-salt applications in the urban catchment may be leading to underground storage of chloride, contributing to the streams in summer and producing year-round peaks of chloride in the urban stream reach.

Seasonal Differences in the Attenuation of Polar Trace Organics in the Hyporheic Zone of an Urban Stream

2022 ◽  
Author(s):  
Birgit M. Mueller ◽  
Hanna Schulz ◽  
Anja Höhne ◽  
Anke Putschew ◽  
Joerg Lewandowski
Keyword(s):  
Hyporheic Zone ◽  
Urban Stream ◽  
Seasonal Differences ◽  
Trace Organics

Reach-scale effects of riparian forest cover on urban stream ecosystems

2005 ◽  
Vol 62 (10) ◽  
pp. 2312-2329 ◽  
Author(s):  
Allison H Roy ◽  
Christina L Faust ◽  
Mary C Freeman ◽  
Judith L Meyer
Keyword(s):  
Land Cover ◽  
Management Practices ◽  
Forest Cover ◽  
Scale Effects ◽  
Riparian Forest ◽  
Canopy Cover ◽  
Habitat Diversity ◽  
Urban Stream ◽  
Ecosystem Integrity ◽  
Small Streams

We compared habitat and biota between paired open and forested reaches within five small streams (basin area 10–20 km2) in suburban catchments (9%–49% urban land cover) in the Piedmont of Georgia, USA. Stream reaches with open canopies were narrower than forested reaches (4.1 versus 5.0 m, respectively). There were no differences in habitat diversity (variation in velocity, depth, or bed particle size) between open and forested reaches. However, absence of local forest cover corresponded to decreased large wood and increased algal chlorophyll a standing crop biomass. These differences in basal food resources translated into higher densities of fishes in open (9.0 individuals·m–2) versus forested (4.9 individuals·m–2) reaches, primarily attributed to higher densities of the herbivore Campostoma oligolepis. Densities of terrestrial invertebrate inputs were higher in open reaches; however, trends suggested higher biomass of terrestrial inputs in forested reaches and a corresponding higher density of terrestrial prey consumed by water column feeding fishes. Reach-scale biotic integrity (macroinvertebrates, salamanders, and fishes) was largely unaffected by differences in canopy cover. In urbanizing areas where catchment land cover drives habitat and biotic quality, management practices that rely exclusively on forested riparian areas for stream protection are unlikely to be effective at maintaining ecosystem integrity.

scholarly journals Limitations on the role of the hyporheic zone in chromium natural attenuation in a contaminated urban stream

2017 ◽  
Vol 83 ◽  
pp. 108-120 ◽  
Author(s):  
Barbara Palumbo-Roe ◽  
Vanessa J. Banks ◽  
Helen C. Bonsor ◽  
Elliott M. Hamilton ◽  
Michael J. Watts
Keyword(s):  
Natural Attenuation ◽  
Hyporheic Zone ◽  
Urban Stream

scholarly journals Using Concentration–Discharge Relationships to Identify Influences on Surface and Subsurface Water Chemistry along a Watershed Urbanization Gradient

Water ◽  
2021 ◽  
Vol 13 (5) ◽  
pp. 662
Author(s):  
Jessica A. Balerna ◽  
Jacob C. Melone ◽  
Karen L. Knee
Keyword(s):  
Water Quality ◽  
Surface Water ◽  
Hyporheic Zone ◽  
Specific Conductance ◽  
The Other ◽  
Subsurface Water ◽  
Urban Stream ◽  
Dissolved Metals ◽  
Urbanization Gradient ◽  
Urbanized Streams

Urban development within watersheds impacts the hydrology and water quality of streams, but changes to groundwater–surface water interactions in this “urban stream syndrome” are not yet well understood. This study focused on three stream systems in a northern Virginia (USA) protected area with 14.2, 31.7, and 66.1% developed land in their watersheds. Surface water was sampled weekly for nutrients, dissolved metals, sulfate, ancillary water quality parameters, and discharge over two non-consecutive years with the hyporheic zone sampled during the second year. Concentration–discharge relationships revealed largely chemostatic behavior in surface water solutes in the least urbanized stream, while in the two more urbanized streams, these relationships tended to have significant positive and negative slopes, indicating diverse delivery pathways depending on the constituent. In the least urbanized stream, linear regressions between discharge and solute concentrations in hyporheic water had exclusively negative slopes, indicating source-limited delivery, while the other two urbanized streams maintained largely chemostatic behavior. Average specific conductance and nitrate + nitrite concentrations in stream surface water reflected an urbanization gradient, while sulfate, Ca, K and Sr concentrations suggested a threshold effect: the stream with a mostly forested watershed had the lowest concentrations, while the other two were higher and similar. Specific conductance indicated salinization of both surface and groundwater at the two more urban streams, possibly threatening aquatic organisms. Metal concentrations in surface and subsurface water were often positively correlated with specific conductance and negatively correlated with pH, suggesting that they may originate from road salt and/or be mobilized by acid precipitation. These results indicate the importance of monitoring both baseflow and stormflow as pathways for pollution.

scholarly journals Conservation unit and water quality: the influence of environmental integrity on benthic macroinvertebrate assemblages

2013 ◽  
Vol 25 (4) ◽  
pp. 442-450
Author(s):  
Jessé Renan Scapini Sobczak ◽  
Alice Teresa Valduga ◽  
Rozane Maria Restello ◽  
Rafael Imlau Cardoso
Keyword(s):  
Water Quality ◽  
Benthic Macroinvertebrates ◽  
Habitat Diversity ◽  
Benthic Macroinvertebrate ◽  
Conservation Unit ◽  
Macroinvertebrate Assemblages ◽  
Taxa Richness ◽  
Assessment Protocol ◽  
Shannon Diversity ◽  
Environmental Integrity

AIM: This study aimed to determine the effectiveness of a Conservation Unit (CU) in maintaining the quality of freshwater habitats and to evaluate the influence of environmental integrity on benthic macroinvertebrate assemblages. METHODS: The research was conducted at sampling sites located within and outside of the CU in the Alto Uruguai region, southern Brazil, and included two stages: (i) the collection of benthic macroinvertebrates and (ii) the application of a Rapid Assessment Protocol (RAP) to characterise the habitat quality. RESULTS: A total of 1,362 benthic macroinvertebrates were collected during the study, totalling 30 taxa. The densities within and outside the CU were significantly different (F= 160.08; p= 0.05), and the Shannon diversity and taxa richness followed the same pattern (F= 118.72, p= 0.05; and F= 176.33, p= 0.04, respectively). In contrast, the Pielou equitability did not differ within and outside the CU (F= 0.19, p= 0.74). The biotic index (Biological Monitoring Working Party) indicated that water quality was good or very good in the majority of cases. Most of the sampling sites were classified as ‘natural’ according to the RAP. The taxa richness was significantly related to habitat diversity (F= 7.24; p = 0.05), but no significant relationship was found between the habitat diversity and the Shannon diversity (F= 2.13, p = 0.22). CONCLUSION: The CU was effective for the conservation of water quality and the freshwater biodiversity of benthic macroinvertebrates. The results show that the environmental integrity was related to the distribution of benthic macroinvertebrates, primarily to the taxa richness. More detailed investigations need to be developed to better understand these relationships and to take into account the temporal scale. An analysis of the most significant sources of stress on the aquatic life outside the area is recommended.

scholarly journals Lateral and longitudinal chloride dynamics in an urbanizing watershed in Southern Ontario: a spatial cross-correlation modelling approach

2021 ◽  
Author(s):  
Bhaswati Mazumder
Keyword(s):  
Time Series ◽  
Cross Correlation ◽  
Hyporheic Zone ◽  
Time Series Data ◽  
Urban Stream ◽  
Series Data ◽  
Catchment Scale ◽  
Southern Ontario ◽  
Urbanizing Watershed ◽  
Correlation Modelling

The application of spatial cross-correlation modelling was tested on continuous time series of electrical conductivity to estimate lateral and longitudinal chloride dynamics in an urbanizing watershed in Southern Ontario. Overall, the model appeared more robust for the winter salting season than for the summer growing season. The winter results showed shorter travel times with higher velocity longitudinally (upstream to downstream) in an urban stream reach with more impervious surfaces than in a rural reach with more permeable surfaces. The lateral exchange rates (stream-hyporheic zone) were observed to be affected by both local and catchment-scale land use and soil profiles. Cross-correlation results and time series data also indicated that road-salt applications in the urban catchment may be leading to underground storage of chloride, contributing to the streams in summer and producing year-round peaks of chloride in the urban stream reach.

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