Are you a young and motivated scientist working on ecological questions in freshwaters?Would you like to meet other young and motivated freshwater scientists from all over Europe and extend your network? Are you eager to learn more about carbon fluxes and greenhouse gas emissions from streams? Do you like to be outside in the nature and conduct fieldwork and do not flinch from performing night sampling? Do you have time between September 2016 until June 2017 for a workshop attendance and four sampling campaigns with 2-4 days in the field in each season? Then, do not hesitate and register for EuroRun!

Running waters are major CO₂ emitters; however, the magnitude and mechanisms of these fluxes are still not adequately quantified and/or understood. The focus of EuroRun lays on estimating CO₂ fluxes from European running waters with a team of early career scientists and represents the first coordinated European-wide study to examine fluvial CO₂ fluxes. The equipment to measure gas fluxes will be provided and the handling will be taught during a workshop, thus no experiences in gas flux measurements are necessary. The measurements will be performed four times in the period from September 2016 to June 2017. In each fieldcampaign CO₂ emissions of one to five streams per team will be measured at daytime and nighttime. For further information, please visit our homepage http://freshproject-eurorun.jimdo.com/eurorun/project-eurorun/.

If you are interested, please carefully check the requirements below for being a EuroRun participant and complete the questionnaire. The purpose of the questionnaire is to get to know you better, to validate appropriate candidates for EuroRun (our funding allows to supporting ~20 teams), and to gather some basic information for the project. We will of course keep your data confidential. Please complete the questionnaire and send it simultaneously to katrin.attermeyer@ebc.uu.se and bodmer@igb-berlin.de, by 31st May 2016.

Requirements to participate in the EuroRun project:

• Be a PhD student or postdoc (having defended your PhD thesis after 31^st December 2012)
• A team of at least two and up to maximum five people (one Team representative and at least one more team member)
• Access to at least one perennial stream where drifting with a floating flux chamber is possible (see requirements for stream sites below)
• Access to basic limnological equipment (pH sensor, temperature sensor, conductivity sensor, waders)
• Be motivated to perform fieldwork in the darkness (one measurement campaign at daytime and one at nighttime for about 2 hours)
• Be available between September 2016 to June 2017 in order to perform measurements in four seasons: at fixed time periods, including during the night
• Access to field site(s) (including car or other transportation if necessary, allowance to access field site(s) and perform measurements or take samples) and insurance for fieldwork
• For one team representative: participate at the EuroRun workshop taking place at Lake Erken (Sweden) from the 13^th -16^th of September (http://www.ieg.uu.se/erken-laboratory/)

We plan to publish the results in an international peer-reviewed journal at the end of the project and every participant that provided data for all four sampling campaigns will be a co-author on the paper!

Selection criteria for field sites:

• Stream orders 1 to 5
• Perennial streams (= never dry)
• The discharge should range between 100 L/s and 2000 L/s
• Stream should flow primarily through a forest or agricultural fields/grasslands and measurements in cities (urban) should be avoided
• A safe working should be possible: not too fast flowing, possible to wade through (wearing waders)

Some pictures from appropriate streams and more information are available on our homepage: http://freshproject-eurorun.jimdo.com/

You can find the questionnaire here: EuroRun questionnaire.

In case of questions please do not hesitate to contact us via email! (simultaneously to katrin.attermeyer@ebc.uu.se and bodmer@igb-berlin.de)