From a sewer into a living river: the Rhine between Sandoz and Salmon

Plum, Nathalie; Schulte-Wülwer-Leidig, Anne

doi:10.1007/s10750-012-1433-1

Cited by 23 publications

(11 citation statements)

References 3 publications

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“…Consistent with our study, the fish diversity in other rivers has been found to increase following pollution mitigation efforts. For example, the Rivers Trent and Thames, and the Rhine showed significant increases in SR and in native and predatory fishes following water quality improvement efforts (Araújo et al ., ; Raat, ; Langford et al ., ; Fedorenkova et al ., ; Plum and Schulte‐Wülwer‐Leidig, ). Conclusions from these studies also support our findings that increased DO and decreased NH 3 are primary drivers of fish recovery in water quality‐degraded systems.…”

Section: Discussionmentioning

confidence: 99%

The Effects of Improved Water Quality on Fish Assemblages in a Heavily Modified Large River System

Parker

Epifanio

Casper

et al. 2015

River Research & Apps

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A long history of human alterations has affected the hydrology, physical habitat and water quality of most large river ecosystems. For more than a century, the Illinois River Waterway has been subject to channelization, damming, dredging, agricultural runoff and industrial and municipal effluents. This study evaluates how subsequent improvements in water quality have influenced long‐term changes in fish assemblages (1983–2010). We used five metrics to characterize the changes in fish assemblages. These metrics depicted shifts in the abundance and biomass of predatory and native fishes and species richness. Random forests (RF) and multiple linear regressions (MLRs) were used to relate the fish metrics to individual water quality and weather variables, with weather primarily used to account for inter‐annual variation. Model performances varied spatially and among fish metrics (0 ≤ pseudo‐R2 ≤ 0.73 for RF; 0.10 ≤ adjR2 ≤ 0.88 for MLR), but dissolved oxygen, un‐ionized ammonia and water clarity were often the best predictors. As the distance downstream of major pollutant sources increased, water quality became less important for explaining the changes in fish metrics and weather more important. These results indicate that water quality improvement largely accounts for fish assemblage recovery in the river system, although within some reaches we examined, weather had substantial compounding effects. The results could be used to prioritize water quality variables for long‐term monitoring and aid in predicting fish assemblage responses to future changes in water quality and climate. Copyright © 2015 John Wiley & Sons, Ltd.

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Section: Discussionmentioning

confidence: 99%

The Effects of Improved Water Quality on Fish Assemblages in a Heavily Modified Large River System

Parker

Epifanio

Casper

et al. 2015

River Research & Apps

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“…Often, political steps were taken only after the occurrence of catastrophic events such as floods had happened [77]. In the case of the Rhine River, pollution peaked in the 1960s, but it was not until the well-publicized Sandoz chemical accident at Basel in 1986 that public opinion forced a substantial change in environmental policies [78,79]. This accident happened at a time when the economy of the Rhine abutter states was running very well, and enormous amounts of money could be mobilized to enact water protection activities.…”

Section: Perception Of the Problem: What Makes Citizens Feel That Thementioning

confidence: 99%

Urban Stream and Wetland Restoration in the Global South—A DPSIR Analysis

et al. 2019

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In many countries of the Global South, aquatic ecosystems such as streams, rivers, lakes, and wetlands are severely impacted by several simultaneous environmental stressors, associated with accelerated urban development, and extreme climate. However, this problem receives little attention. Applying a DPSIR approach (Drivers, Pressures, State, Impacts, Responses), we analyzed the environmental impacts and their effects on urban hydrosystems (including stagnant waters), and suggest possible solutions from a series of case studies worldwide. We find that rivers in the Global South, with their distinctive geographical and socio-political setting, display significant differences from the Urban Stream Syndrome described so far in temperate zones. We introduce the term of ‘Southern Urban Hydrosystem Syndrome’ for the biophysical problems as well as the social interactions, including the perception of water bodies by the urbanites, the interactions of actors (e.g., top-down, bottom-up), and the motivations that drive urban hydrosystem restoration projects of the Global South. Supported by a synthesis of case studies (with a focus on Brazilian restoration projects), this paper summarizes the state of the art, highlights the currently existing lacunae for research, and delivers examples of practical solutions that may inform UNESCO’s North–South–South dialogue to solve these urgent problems. Two elements appear to be specifically important for the success of restoration projects in the Global South, namely the broad acceptance and commitment of local populations beyond merely ‘ecological’ justifications, e.g., healthy living environments and ecosystems with cultural linkages (‘River Culture’). To make it possible implementable/practical solutions must be extended to (often poor) people having settled along river banks and wetlands.

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“…From its 1250 km length, 825 km of the river are navigable from the port of Rotterdam on the North Sea coast to Basel in Switzerland. Around 60 million of people live in the river basin and the river supplies drinking water for more than 30 million people (Plum and Schulte-Wülwer-Leidig 2014). Moreover, it is connected with nearly all large rivers in southern, central and Eastern Europe.…”

Section: Supplementary Informationmentioning

confidence: 99%

Nuisance species in lake constance revealed through eDNA

et al. 2021

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Biological invasions are a global threat to biodiversity especially for aquatic resources. The distribution of alien species is associated with human activities; therefore, exotic species tend to accumulate near big urban areas through different invasion vectors such as ballast water, hull fouling, aquarium and pet releases. The Rhine River region is one of the most economically important in Europe. Around 60 million people live in the river basin that is connected with other large European rivers via the Rhine-Main-Danube shipping canal. The Alpine Rhine flows to Lake Constance, which is the second largest subalpine lake in Europe. Here, eDNA metabarcoding was employed to inventory aquatic species from water samples in six riverine and four lake localities within Lake Constance region. A 313 bp fragment within cytochrome c oxidase subunit I gene was PCR amplified using generalist primers for metazoan and sequenced with MiSeq High-Throughput Sequencing platform. Seven invertebrate invasive species and the invasive fish Oncorhynchus mykiss were detected from eDNA. Species-specific primers were employed to confirm metabarcoded species. Most of the invasive species detected in this study correspond to samples from areas around lake ports, followed by other lake and degraded downstream river areas. Samples taken upstream of Lake Constance were free of invertebrate aliens. To establish common regulation and management actions regarding aquatic invasions in the three countries that share Lake Constance is recommended.

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From a sewer into a living river: the Rhine between Sandoz and Salmon

Cited by 23 publications

References 3 publications

The Effects of Improved Water Quality on Fish Assemblages in a Heavily Modified Large River System

The Effects of Improved Water Quality on Fish Assemblages in a Heavily Modified Large River System

Urban Stream and Wetland Restoration in the Global South—A DPSIR Analysis

Nuisance species in lake constance revealed through eDNA

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