Town of Wellfleet Shell Recycling Impact Report
___________________________________________________________________________
We are proud to announce that since 2009, our shell recycling efforts have returned over 167 tons (334,000 pounds) of shell back to Wellfleet harbor. Together with volunteers, restaurant partners and paid staff we have diverted tons of would be waste into a community resource worth approximately $36,000 (*raw shell estimated value). This includes our annual 2 day efforts at Wellfleet OysterFest (2009-2025), as well as our Restaurant Shell Recycle Program (2021-2025).
Wellfleet OysterFest Shell Collection 2009-2025
The Wellfleet OysterFest shell recycling initiative began keeping track of shell recycling data in 2009 and has since engaged over a thousand volunteers to help educate the public about the value of aquaculture for coastal habitats, maintain a clean waste stream, and recapture as much shell as possible. These efforts have resulted in more than 120,000 pounds of shell staying in Wellfleet and being returned to the harbor.
We created a resource - Since before tracking began in 2009, all shell collected was donated to the Town of Wellfleet and utilized by the Wellfleet Shellfish Department as cultch - the hard surface that oyster larvae require to settle and grow, without which natural recruitment would decline.
We diverted waste - Shell is not trash, it is a valuable, limited and actively managed material that is utilized in restoration projects across the coast and is a valuable resource enhancement in the town of Wellfleet. One of the primary reasons our shell recycling programs exist is because shells have value but are both logistically difficult and costly to source from elsewhere.
We helped the economy - The scale of this impact is significant, our conservative calculations project that the 167 tons of returned shell had the ability to support over 2 million juvenile oysters with the potential for 500,000 reaching adulthood using a 25% survival rate. These oysters contribute not only to the health of the harbor but also to its economic vitality with a potential market value of $225,000 (@.45 per piece).
We close the loop - At full capacity, those oysters have the ability to filter millions of gallons of water, contributing to a cleaner, more resilient harbor (@50 gal per oyster per day). This is a powerful reminder that every oyster served can help grow the next generation when the shells make their way back to the bay preserving a resource that has supported this community for generations.
We work with restaurants - A healthy harbor supports the whole community from farmers and harvesters to restaurants and the visitors who help make Wellfleet what it is. The restaurant shell recycling program is a direct investment in the system. This time tested program has demonstrated measurable success, strong community participation, and clear economic and environmental returns.
Outer Cape Restaurant Shell Recycling Program 2021 - 2025
Our partner restaurants play a valuable role in supporting local farmers and share our vision of a robust future robust Wellfleet shellfishing industry in the future. From 2021 through 2025, the Outer Cape Restaurant Shell Program has supported up to 21 local restaurants by diverting over 220,000 pounds of shell from the waste stream. Shell recycling helps close the loop between growing, harvesting, shucking, and eating shellfish by returning shells to the water for the next generation of oysters to grow.
To support the continued growth, success and sustainability of shell recycling in Wellfleet, we would like to strengthen the partnership with the Town through shared involvement.
2026 Goals:
Introduce a community drop off location(s) supporting locals and visitors maintained by the Town
Develop an educational project component (ex. Bagged cultch)
Explore Town support in the off-season
This is a long-term investment in natural infrastructure retaining value that would otherwise be lost and in turn reinvesting it directly into the harbor.