Last year, The Friends of Georgica Pond supported a project to harvest macroalgae from Georgica Pond to remove excessive nitrogen and phosphorus. A study of the effort by Stony Brook University demonstrated that water quality conditions were vastly improved in 2016.

You can download the full report by Stony Brook University about this here:
Macroalgae report2016V2-1zzl8mt

You can read a news article about this here.
http://easthamptonstar.com/Government/20161215/Good-News-Georgica-Pond