During the holiday break, Professor Matthew Cover of Cal State Stanislaus joined Friends of the Creek, Chair, Steve Moore to sampled benthic macroinvertebrates (i.e., aquatic insects & other critters) from the stream bed on the Willow Grove site. The population of insects that live in streams indicate the level of water quality. If there is a lot of pollution or concrete channelization, the creatures that live in the stream are less pollution sensitive, like earthworms and midges. Conversely, if the …
