I'm looking at developing a new method to monitor pesticides in rivers by using biofilms (that slippery stuff that grows on rocks in rivers!). These large metal samplers (I call them periphytometers) contain artificial substrate that colonizes biofilms. The samplers are installed into the river bed and left to colonize biofilms for ~8 weeks. I'm monitoring several rivers across the province, but this one (my favourite field site) is located just outside the Bruce Peninsula National Park.
