Fourteen Master Naturalists led by MN George Lauster gathered on the banks of the Little Maumelle River Saturday, along the Kingfisher Trail at Pinnacle Mountain State Park. We were fortunate that Tropical Storm Ike had held off till later the night, leaving us with just cloudy skies and a slight breeze.
Our first find of the morning occurred before most had arrived when Larry Cross discovered a baby alligator snapping turtle.
We started the morning inspecting the riparian area before splitting up into teams to measure the stream’s flow, chemistry and benthic macroinvertebrates (sediment bugs). There were still wood debris piles and other signs of Tropical Storm Gustav’s massive flooding that extended to the parking lot.
Bert Turner lead the flow team, Bill Toland coached the bug collectors, while Martha Bowden and I did the chemistry. Collecting bugs was the highlight for both the veterans and the newbies. We didn’t spend much time identifying them there as we all headed up to the visitor center for some advanced training.
I gave a presentation to help us understand better why the stream team exists. We tried to imaging what life is like from the viewpoint of a stream bug or fish, then connected our view to the stressors that stream scientists and managers are concerned about. We tied it up by going over the different riparian, chemistry and bug indicators we use as a stream team. For me the fun part was then breaking folks up into small groups that each became more expert on group of similar looking bugs. Each group then put their new knowledge to work identifying the bugs present in our samples.
We found nine types of macrointertebrates, including mayfly and stone fly larvae. These two types are sensitive to pollution.
Along with the chemistry results, this suggested that this portion of the Little Maumelle River is in great health and recovered after just two weeks since the massive flooding of Tropical Storm Gustav. The only criticism I got afterwards was that we don’t do this enough. Current plans are to sometimes help Game and Fish and other organizations with their sampling efforts, giving us a chance to see how things differ among streams.
Written by MN George Lauster
















