Oyster Drills as introduced species

While aquaculture species such as the Japanese oyster, Crassostrea gigas, were introduced intentionally, they also brought with them many undesirable hitchhikers, including oyster drills. Oyster drills are small predatory snails that use there drill to bore in small shellfish. These shelfsih are then destroyed, and Oyster drills are most prevelently taking out the american oyster. Not only does this hurt the food web, but also the local economy.