Inorganic phosphate and total phosphorus were determined during 1950 in Great Pond, Massachusetts. Except in deeper water during summer, the concentration of inorganic phosphate was less in Great Pond than in its sources of fresh and salt waters. In summer the total phosphorus concentration was greater in the Pond than in the Sound or River, this being particularly so in deep water of the Pond....
Hulburt, Edward M.. 1956. "Distribution of phosphorus in Great Pond, Massachusetts." Journal of Marine Research 15, (3). https://elischolar.library.yale.edu/journal_of_marine_research/872