Surface and Hyporheic Oligochaete Assemblages in a French Suburban Stream

Lafont, M.; Vivier, Anne; Nogueira, S.; Namour, Philippe; Breil, Pascal

doi:10.1007/s10750-005-1718-8

Cited by 32 publications

(24 citation statements)

References 39 publications

Supporting

Mentioning

Contrasting

Unclassified

Order By: Relevance

“…They significantly impact the frequency of zero discharge and, for the smallest sub-catchments where the natural river regime is seasonal, water coming from the SODs is the only source of water during a significant part of the year. The impact in terms of water quality is of course important (Lafont et al, 2006). However, in order to conform to the water framework directive, the management of rainwater is being reconsidered: where possible rain waters are diverted to new separate sewers flowing to retention/detention basins.…”

Section: Discussionmentioning

confidence: 99%

“…This can lead to incision and erosion problems, which perturb the ecological status of the rivers (e.g. Hatt et al, 2004;Walsh et al, 2005;Lafont et al, 2006). In addition, periurban catchments have a complex structure, made of a mixture of natural, agricultural and urbanized areas, and are evolving very quickly (e.g.…”

Section: Introductionmentioning

confidence: 99%

“…The water responsible from these flooding mainly comes from the rural part of the catchment, but its effect can be enhanced by the fast contribution of urbanized zones. The water coming from combined sewer overflow devices is rich of sediments and pollutions, causing quality problems in the rivers, especially during summer storms, where most of the water reaching the river comes from urbanized areas via SODs (Lafont et al, 2006). Increased erosion of the river banks has also been evidenced with impact on the ecosystems (Schmitt et al, 2008).…”

Section: Introductionmentioning

confidence: 99%

See 2 more Smart Citations

Evidence of the impact of urbanization on the hydrological regime of a medium-sized periurban catchment in France

Braud¹,

Breil²,

Thollet³

et al. 2013

Journal of Hydrology

139

View full text Add to dashboard Cite

International audienceIn this paper we explore several indicators to evidence the impact of land use change, and particularly of urbanization/artificialization on discharge series of periurban catchments. A first set of indicators is derived from the literature and describes the monthly and annual hydrological regime, low flows and high flows, and flow components. Statistical tests are also applied to assess the existence of trends/rup-tures on the longest time series. In addition, new indicators, especially built to show the impact of sewer overflow devices (SODs) and infiltration into sewer networks are proposed. The method is applied to the Yzeron (150 km 2) catchment, located close to Lyon city (France) where various discharge gauges with a variable time step are available on sub-catchments ranging from a few to 130 km 2 (some of them nested), with a large variety of land uses (forest, agricultural land, artificialized areas). In addition, discharge is also measured in a SOD and a combined sewer network so that the relevance of the new proposed indicators can be assessed. In the largest sub-catchments, the results show a decrease of specific discharge from upstream to downstream corresponding to an increase of artificialized areas, except for high flows. When a SOD is present, the specific discharge is increased for frequencies larger than 50%, and the frequency of zero daily discharge is decreased. Waste water can be the only source of water in autumn month in a 4.1 km 2 sub-catchment. Base flow is also decreased for the most urbanized catchments. Our results confirm the impact of SODs on the modification of the flood regime, with an increase of frequent floods, but a marginal impact on the largest floods, mainly governed by saturation of the rural parts of the catchments. The decomposition of the sewer discharge shows that, on an annual basis, infiltration in the sewer network accounts for 30% of the total discharge and runoff due to rainwater to about 40% (the remaining being composed of the waste water discharge). It can explain the decrease of base flow. Our analysis shows that, for periurban catchments, a long term monitoring of nested sub-catchments and infrastructures (SODs, sewer networks) with a small time step, is very valuable and provides data allowing a quantitative assessment of the impact of urbanization on the whole hydrological regime

show abstract

Section: Discussionmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

See 1 more Smart Citation

Evidence of the impact of urbanization on the hydrological regime of a medium-sized periurban catchment in France

Braud¹,

Breil²,

Thollet³

et al. 2013

Journal of Hydrology

139

View full text Add to dashboard Cite

show abstract

“…In the framework of the present task of formulating the methodology, these flows have been fixed by using existing data for a discharge site in the region of Lyon in France [34]. …”

Section: Formulation Of the Risk Assessment Methodology Dedicated mentioning

confidence: 99%

Evaluation of Ecotoxicological Risks Related to the Discharge of Combined Sewer Overflows (CSOs) in a Periurban River

Angerville

Perrodin

Bazin³

et al. 2013

IJERPH

View full text Add to dashboard Cite

Discharges of Combined Sewer Overflows (CSOs) into periurban rivers present risks for the concerned aquatic ecosystems. In this work, a specific ecotoxicological risk assessment methodology has been developed as management tool to municipalities equipped with CSOs. This methodology comprises a detailed description of the spatio-temporal system involved, the choice of ecological targets to be preserved, and carrying out bioassays adapted to each compartment of the river receiving CSOs. Once formulated, this methodology was applied to a river flowing through the outskirts of the city of Lyon in France. The results obtained for the scenario studied showed a moderate risk for organisms of the water column and a major risk for organisms of the benthic and hyporheic zones of the river. The methodology enabled identifying the critical points of the spatio-temporal systems studied, and then making proposals for improving the management of CSOs.

show abstract

“…The taxonomic composition of the hyporheos or the dominant functional traits (e.g. Lafont et al, 2006) may represent valuable tools. In this case, the relation between pressure and impacts on the hyporheic fauna has to be clarified.…”

Section: Organic Matter and Inorganic Nutrientsmentioning

confidence: 99%

The role of organisms in hyporheic processes: gaps in current knowledge, needs for future research and applications

Marmonier

Archambaud²,

Belaidi

et al. 2012

Ann. Limnol. - Int. J. Lim.

View full text Add to dashboard Cite

-Fifty years after the hyporheic zone was first defined (Orghidan, 1959), there are still gaps in the knowledge regarding the role of biodiversity in hyporheic processes. First, some methodological questions remained unanswered regarding the interactions between biodiversity and physical processes, both for the study of habitat characteristics and interactions at different scales. Furthermore, many questions remain to be addressed to help inform our understanding of invertebrate community dynamics, especially regarding the trophic niches of organisms, the functional groups present within sediment, and their temporal changes. Understanding microbial community dynamics would require investigations about their relationship with the physical characteristics of the sediment, their diversity, their relationship with metabolic pathways, their interactions with invertebrates, and their response to environmental stress. Another fundamental research question is that of the importance of the hyporheic zone in the global metabolism of the river, which must be explored in relation to organic matter recycling, the effects of disturbances, and the degradation of contaminants. Finally, the application of this knowledge requires the development of methods for the estimation of hydrological exchanges, especially for the management of sediment clogging, the optimization of self-purification, and the integration of climate change in environmental policies. The development of descriptors of hyporheic *Corresponding author: pierre.marmonier@univ-lyon1.frArticle published by EDP Sciences Ann. Limnol. -Int. J. Lim. 48 (2012) [253][254][255][256][257][258][259][260][261][262][263][264][265][266] Available online at: Ó EDP Sciences, 2012 www.limnology-journal.org DOI: 10.1051/limn/2012009 zone health and of new metrology is also crucial to include specific targets in water policies for the long-term management of the system and a clear evaluation of restoration strategies.

show abstract

Surface and Hyporheic Oligochaete Assemblages in a French Suburban Stream

Cited by 32 publications

References 39 publications

Evidence of the impact of urbanization on the hydrological regime of a medium-sized periurban catchment in France

Evidence of the impact of urbanization on the hydrological regime of a medium-sized periurban catchment in France

Evaluation of Ecotoxicological Risks Related to the Discharge of Combined Sewer Overflows (CSOs) in a Periurban River

The role of organisms in hyporheic processes: gaps in current knowledge, needs for future research and applications

Contact Info

Product

Resources

About