Methodologies to measure and characterise fine sediment input to rivers and their effects on health and reproduction of gravel spawning brown trout (Salmo trutta)
Third-party funded project
Project title Methodologies to measure and characterise fine sediment input to rivers and their effects on health and reproduction of gravel spawning brown trout (Salmo trutta)
Principal Investigator(s) Holm, Patricia
Co-Investigator(s) Alewell, Christine
Project Members Michel, Christian
Schindler, Yael
Huggenberger, Peter
Organisation / Research unit Departement Umweltwissenschaften / Umweltgeowissenschaften (Alewell),
Departement Umweltwissenschaften / Aquatische Ökologie (Holm),
Departement Umweltwissenschaften / Applied Geology (Huggenberger)
Project start 01.09.2008
Probable end 31.08.2011
Status Completed
Abstract

Alpine and sub-alpine rivers are threatened by global climate on one hand and on the other, by land use change which both lead to increased erosion and hence sediment supply to rivers. Fine sediments are a neglected threat to our rivers and can determine stream quality to a large extent. Sediments in rivers cause increases in turbidity and sedimentation and can ultimately lead to clogging of the river bed. This, in turn, compromises the ecological integrity of the aquatic environment, and can affect the health, reproduction and development of gravel spawning fish, such as the brown trout (Salmo trutta). This project aims to further our understanding of the complex interactions of sediment input and effects on brown trout by firstly, characterising the sediment load, the relationship between water flow and clogging,  river bed erosion and  dynamics of sediment input during the year, as well as of the composition and quality of the fine sediment particles. Secondly, methods to study the effects of the sediments in the abiotic aquatic environment, such as river bed clogging, will be developed and optimized. Thirdly, biotic components will be studied by assessing the health, reproduction and development of brown trout in the field and in the laboratory. Special emphasis will be given to the effects of environmentally relevant conditions such as exposure regime and composition of sediments, their particle size and quality of suspended as well as bedload sediments on the biotic components studied. Finally, a model based on the life-cycle of the brown trout will be used to assess the effects of fine sediments on trout recruitment. To address the corresponding questions, an interdisciplinary research approach is needed.

Keywords erosion, sediment, river, hydrology, fish, reproduction, health, brown trout
Financed by Swiss National Science Foundation (SNSF)

Published results ()

  ID Autor(en) Titel ISSN / ISBN Erschienen in Art der Publikation
86868  Scheurer, K.; Alewell, C.; Bänninger, D.; Burkhardt-Holm, P.  Climate and land-use changes affecting river sediment and brown trout in alpine countries-a review  0944-1344  Environmental Science and Pollution Research  Publication: JournalArticle (Originalarbeit in einer wissenschaftlichen Zeitschrift) 
981752  Page, R. M.; Huggenberger, P.; Epting, J.; Lischeid, G.  Risk analysis for groundwater extraction  978-1-907161-16-2    Publication: ConferencePaper (Artikel, die in Tagungsbänden erschienen sind) 
981768  Auckenthaler, Adrian; Baenninger, Dominik; Affolter, Annette; Zechner, Eric; Huggenberger, Peter  Drinking water production close to contaminant sites: a case study from the region of Basel, Switzerland  978-1-907161-16-2    Publication: ConferencePaper (Artikel, die in Tagungsbänden erschienen sind) 

Documents ()

  Document
 
 

Cooperations ()

  ID Kreditinhaber Kooperationspartner Institution Laufzeit - von Laufzeit - bis
2355890  Holm, Patricia  Tierney, Keith, Dr., Assistant Professor  University of Alberta, Edmonton, Canada  01.01.2013  31.12.2016 
   

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