Blar i NIVA Open Access Archive på forfatter "Dörsch, Peter"
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Annual changes in aquatic plant photosynthesis in the regulated river Otra and the effect of plant removal
Demars, Benoît Olivier Laurent; Schneider, Susanne Claudia; Thiemer, Kirstine; Dörsch, Peter; Pulg, Ulrich; Stranzl, Sebastian Franz; Velle, Gaute; Pathak, Devanshi (NIVA-rapport;7858-2023, Research report, 2023)Mass development of submerged aquatic plants is often seen as nuisance for human activities. The present study used novel methods to estimate the changes in ecosystem photosynthesis (mostly Juncus bulbosus), through an ... -
Boreal Headwater Catchment as Hot Spot of Carbon Processing From Headwater to Fjord
Clayer, Francois; Thrane, Jan-Erik; Brandt, Uta; Dörsch, Peter; de Wit, Heleen (Peer reviewed; Journal article, 2021)Boreal headwaters and aquatic sediments are significant transporters, stores and processors of terrestrial carbon (C) as well as emitters of greenhouse gases (GHGs), mainly CO2 and CH4. While terrestrial ecosystems are net ... -
Estimation of ecosystem respiration and photosynthesis in supersaturated stream water downstream of a hydropower plant
Demars, Benoît Olivier Laurent; Dörsch, Peter (Journal article; Peer reviewed, 2023)The estimation of whole stream metabolism, as determined by photosynthesis and respiration, is critical to our understanding of carbon cycling and carbon subsidies to aquatic food-webs. The mass development of aquatic ... -
Hydropower: gas supersaturation and the role of aquatic plant photosynthesis for fish health
Demars, Benoît Olivier Laurent; Dörsch, Peter; Thiemer, Kirstine; Clayer, Francois; Schneider, Susanne Claudia; Stranzl, Sebastian Franz; Pulg, Ulrich; Velle, Gaute (NIVA-rapport;7633, Research report, 2021)Fish and invertebrates breathing in water supersaturated with gas (total dissolved gas; TDG), e.g. at the outlet of hydropower plants, may develop gas bubble disease (analogous to the bends in humans). Aquatic plants also ...