http://baltimore.cbslocal.com/2013/05/01/omalley-to-sign-oyster-shell-recycling-bill/
Governor Martin O'Malley from Maryland is going to sign a bill which will start an
Oyster shell recycling process. The Chesapeake Bay oyster population has dropped
dramatically since the first European settlers. The bay now consists of less than 1
percent of the original population. Oysters are a crucial part of the bay because they
are filter-feeders. The oyster shells would be collected from regular consumers and
from restaurants. The recycled shells would be brought to hatcheries because the young
oysters prefer to latch onto adult shells.