Our first stop was off a small pier in Lynn. Here various stations were set up and after some water was collected and the girls paired up and cycled through the tests with each pair testing for nitrate, phosphate, dissolved oxygen, turbidity, and salinity. A variety of instruments were used such as a refractometer and hydrometer to test salinity, thermometers, a pH probe, secchi tube for turbidity and various chemical test kits to measure other parameters. I was very impressed with everyone as they knew exactly what they were doing with all the instruments available on site. A plankton tow was also used to collect plankton from the surface water to be viewed under the small microscopes we had on site.
|Setting up testing stations|
|Checking salinity with a refractometer|
|Checking turbidity with the secchi tube|
|Using a Van Dorn water sampler|
|Van Dorn water samplers take water sample from below the surface!|
|Setting up water quality testing|
|Brave volunteers collecting our first water sample|
|Walking back to dry land|
|Collecting water from the marsh panne|
|Checking the trap|
|One of many mummichogs!|
|A larger mummichog (Fundulus heteroclitus)|
Overall I had a blast with the Girls Inc. group. It was great to see young high schoolers get excited about science and I was very happy to teach them some facts about water quality and marine biology. I am hoping these types of projects help lead some of these girls into the STEM field because with their natural curiosity, I know they'll go far!