Stream Mesocosm – Teagasc, Johnstown Castle

On May the 24th, CWRR was invited to visit an experimental facility built in the vicinity of a stream on Teagasc land near Johnstown Castle, Wexford. Ph.D. student Steve Davies (UCD and Teagasc) walked us through the experimental design of his study. It is an impressive experiment using outdoor stream mesocosm system investigating aquatic ecology (macroinvertebrate) responses to multiple stressors – acute and chronic nitrogen and phosphorous impacts combined with the impacts from deposited sediment. We are looking forward to the results of this study now!

Field visit to Johnstown Castle experimental facility

Experimental design

Experimental mesocosm with sediment impacts on the ecology – note the sensitive species in the top right corner escaping sediment pressure!

Experimental design