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Committee hears SMAST study showing oyster aquaculture can remove nitrogen; members and residents question scale and risks
Summary
A SMAST study and town pilot were presented as evidence that floating oyster aquaculture can reduce estuary nitrogen cheaply; committee members and residents raised questions about denitrification assumptions, permitting and neighborhood impacts.
Committee members and members of the public spent the bulk of the March 18 meeting on a presentation about expanding floating oyster aquaculture as a tool to remove nitrogen from Falmouth estuaries.
Presenter Ron described results from a SMAST (UMass Dartmouth) study and Town pilot in Bourne's Pond that measured net nitrogen uptake in oyster growth plus associated denitrification. He summarized the study's conservative combined uptake/denitrification figure as about 0.363 grams of nitrogen removed per oyster and said the combination of oyster growth and denitrification could remove roughly 363 kilograms per acre. Using the study's numbers, he…
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