Outputs

Gabriele Consoli and Saman Hashemi

Tributary effects on the ecological responses of a regulated river to experimental floods, Journal of Environmental Management, Volume 303, 2022.

The focus of the paper is how a tributary (source of sediment and water) influences eco-morphological responses of a river to experimental floods. Our main findings highlight the importance of tributaries in restoring ecosystem properties lost after damming, enhancing the resilience of the system. In addition, we observed that disturbance legacy played a fundamental role in determining ecological conditions of a river prior to experimental floods, thus confirming that considering flow variability and sediment availability is crucial in adaptive dam management and environmental flows design. This work is partly based on the data collected during the summer school in Zernez.

 

 

 

Figure 7. Geomorphic units and sub-units assemblage of the three sub-reaches before 2018 flood (B) and after 2nd 2019 flood (A) (for sub-reach location along the study reach see Fig. 1S in supplementary material). The lower panel shows changes in geomorphic units and sub-units areas across the same period. (S) = partly submerged, (E) = emerged.

Devanshi Pathak (CEH)

Devanshi has her PhD work published in Water Resources Research, title: Hourly Prediction of Phytoplankton Biomass and its Environmental Controls in Lowland Rivers. We have developed a high-resolution river model to predict hourly-scale dynamics of phytoplankton biomass and relevant physico-chemical water quality variables in lowland rivers. The model was tested in the lower River Thames, UK, using hourly to monthly scale observations of a two year period. Through this modelling exercise, we demonstrated that the model satisfactorily predicts the diurnal variability and transport of phytoplankton biomass along the river network, and can serve as a powerful tool both for predictive purposes and for hindcasting past conditions when hourly resolution water quality monitoring was unavailable. We also derived important environmental controls and their optimum ranges that promoted high phytoplankton blooms, and suggested possible management solutions for phytoplankton management in the river. Overall, the hourly model improves biomass prediction and represents a step forward in high‐resolution phytoplankton modelling and consequently, bloom management in lowland river systems.

Diana Derepasko (UFZ)

Diana’s first PhD paper is a review paper on optimization problem decisions and their implications for the spatial and temporal scales that featured a collaboration with Joseph Guillaume (Australian National University) and Avril Horne (Melbourne University), title: Considering scale within optimization procedures for water management decisions: balancing environmental flows and human needsHere is the graphical abstract:

Her second paper is cited here:  Derepasko, D.; Peñas, F.J.; Barquín, J.; Volk, M. Applying Optimization to Support Adaptive Water Management of Rivers. Water 202113, 1281. https://doi.org/10.3390/w13091281

Lorenzo Pin (NIVA)

Lorenzo has a new publication in Molecular Ecology Resources journal, entitled Two different approaches of microbial community structure characterization in riverine epilithic biofilms under multiple stressors conditions: Developing molecular indicators, which reports on a significant correlation between the prokaryotic community composition and pH in rivers from two different geographical areas in Norway. CARD‐FISH and metabarcoding data followed the pattern of the environmental variables, but the main feature distinguishing the community composition was the regional difference itself.

Afua Owusu (IHE)

Afua published a paper based on the literature review of her PhD work, entitled Re‐operating dams for environmental flows: From recommendation to practice which covers practical cases of dams being re-operated to release environmental flows. Afua presented it at the 6th Biennial Symposium of the International Society for River Science which was held at the University of Natural Resources and Life Sciences (BOKU) in Vienna, Austria in September 2019. The article is part of a special issue of the conference contributions in the River Research and Applications Journal on the theme of Riverine landscapes as coupled socio-ecological systems.

Updated November 2021 – Afua also has two new accepted papers:

The first paper is titled ‘May the odds be in your favour: Why many attempts to re-operate dams for the environment stall’ in the Journal for Water Resources Planning and Management. In this paper we explore the impasse narrative on e-flows implementation through dam re-operation. We thank all EuroFlow colleagues for their contribution to this paper which used the responses to the survey we sent out in November 2019. The DOI for the paper (10.1061/(ASCE)WR.1943-5452.0001521) will be activated when the paper is published online in the ASCE Library.

The second paper is titled ‘The clam and the dam: A Bayesian belief network approach to environmental flow assessment in a data scarce region’ in Science of the Total Environment journal. This paper was written in collaboration with Martin and Michael of UFZ during my secondment. In the paper (available in pre-print here: https://doi.org/10.1016/j.scitotenv.2021.151315)  we demonstrate an ecologically grounded, parsimonious method for designing e-flows in a data scarce region.


 

 

 

 

This project has received funding from the European Union’s Horizon 2020 research and innovation programme under the Marie Skłodowska-Curie grant agreement No 765553