Like corals, oysters are considered ecosystem engineers. They have a unique ability to both physically and chemically alter their habitat. These bivalves are often a signal for healthy ecosystems because of their water filtration capabilities, since they can reduce water turbidity and pollution. Oyster beds also create habitat and act as a nursery for juvenile fish, providing foraging ground and protection from predators. Read More: https://www.climatehubs.oce.usda.gov/hubs/northeast/news/small-mighty-oyster-aquaculture-tool-improve-ecosystem-health