The Coalition to Restore Coastal Louisiana said oyster shells placed on the seafloor help new oyster communities form and regenerate, LiveScience reported Wednesday.
The project is funded by a $1 million gift from Shell Oil Co.
Oyster shells have similarly used elsewhere, such as the Chesapeake Bay, the organization said.
"Oyster shell is a naturally created and valuable material that should be returned to the coast, where it can serve as a foundation for reefs and as cultch [or fodder] for more oysters," the coalition's executive director, Steven Peyronnin, said in an online post.in a post from the coalition.
Oyster larvae prefer to attach to other oyster shells and begin growing, the group said.