We are happy to be back in our local creeks and streams as we deploy sensors for our 2021 stream temperature monitoring season!You never what you'll find in the field! This week we saw stonefly exuvia or the empty exoskeleton left behind as the nymph transforms into it's winged adult form!We also came across a large freshwater mussel, likely a western ridged mussel. These filter feeders are more pollution tolerant compared to some mussels, but they are not found in highly polluted waters.