Publications by authors named "Sebastian Stranzl"
Article Synopsis
- Hydroelectric power plants can produce harmful levels of total dissolved gas supersaturation (TDGS) that negatively impact aquatic life, and a risk assessment model was developed to identify which plants are at higher risk of generating TDGS.
- In Norway's hydropower facilities, 28% were found to be high-risk due to certain turbine types and design features, with over half discharging directly into rivers, and 73% of monitored plants showing biologically significant TDGS levels.
- The situation is less clear in Austria and Germany due to data limitations, with many plants categorized at moderate risk and observed TDGS levels indicating potential environmental concerns; it is recommended to implement systematic screening and monitoring for TDGS in hydropower installations.
Article Synopsis
- Altered river hydrology can lead to excessive growth of invasive aquatic plants, which can significantly impact human activities and aquatic ecosystems, often necessitating costly management efforts.
- A study utilized a theoretical model to predict photosynthesis in the submerged plant Juncus bulbosus and found that despite high mass loss, the plant's biomass remained stable, suggesting resilience to mechanical harvesting.
- The research highlights the advantages of theoretical modeling for predicting ecosystem responses, which can aid in sustainable management practices and support biodiversity initiatives like the EU Biodiversity Strategy and UN Sustainable Development Goals.
Floating passive-integrated transponder (PIT) antennae and smolt traps were used to study the time of sea entry and relative recapture of wild and hatchery-reared Atlantic salmon Salmo salar smolt released below and above a lake formed in the Vosso River. In total, 8.4 and 4.
View Article and Find Full Text PDFFirst observations of saturopeaking: Characteristics and implications.
Sci Total Environ
December 2016
During the monitoring of total dissolved gas (TDG) saturation in the Vetlefjordelva River in western Norway in 2014-2015, characteristic waves of supersaturated water were discovered. These waves were significantly correlated with hydropower operation, which was run by hydropeaking (R=0.82, p<0.
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