Epilithic and sestonic chlorophyll for the Kuparuk River during the summers of 1983 - 2012

Sestonic and epilithic chlorophyll for the Kuparuk River during the summers of 1983 - 2012. Water was filtered for sestonic chlorophyll and rocks from designated locations on the Kuparuk River were scrubbed for epilithic chlorophyll approximately three times each summer. Phosphorus addition has occurred since 1983; station sites are relative distance from the original 1983 phosphorus dripper. Stations include sites in a reference, recovery, and fertilized reach. Reaches were defined based on the location of phosphorous addition (see methods). Phosphoric acid is added to the stream to increase the soluble reactive phosphorus by 0.32 uM. Both sestonic and epilithic chlorophyll a were analyzed for the Kuparuk from 1983 to current.