Monthly fluorescence, oxygen, and temperature profiles for Moose Pond’s south basin. Chlorophyll concentration (green line), dissolved oxygen concentration (blue line), and temperature data (red line) were collected at every meter from the surface to the bottom from May through September.
Throughout the season, algae concentrations tended to be lower at the surface and higher near the thermocline. While fluorescence readings were highest in July, each month saw a fluorescence peak. Because elevated readings tended to be near the thermocline, these readings are represented in the chlorophyll samples analyzed in the Water Quality figure above.
Gloeotrichia echinulata (a type of cyanobacteria (blue-green algae) commonly found in low-nutrient waters) can be seen with the naked eye. Gloeo density is reported as a value ranging from 0 – 6, based on the number of Gloeo colonies seen through a Secchi scope. Higher values indicate more Gloeo colonies. The south basin’s Gloeotrichia echenulata colonies were observed beginning in early July this year in densities ranging from 0.5 – 2 on the Gloeo density scale.
