CLEAN : To save California coasts, scientists turn to the humble oyster

The video discusses the role of oysters in filtering water and supporting eelgrass, which helps prevent shoreline erosion. Eelgrass also provides habitat for fish and birds. Traditionally, hard structures are used to prevent erosion, but nature-based solutions like reef balls offer habitat value without the need for such structures.

How many gallons of water can oysters filter in a day?

• 100 gallons

• 50 gallons

• 25 gallons

• 10 gallons

What is one benefit of eelgrass in aquatic environments?

• It decreases fish population.

• It reduces oxygen levels.

• It prevents shoreline erosion.

• It increases water temperature.

How does eelgrass contribute to the diet of aquatic life?

• It provides shelter for fish.

• It is a food source for fish and birds.

• It increases water salinity.

• It reduces water clarity.

Which of the following is a traditional method for preventing shoreline erosion?

• Installing solar panels

• Planting more trees

• Using rock riprap

• Building sand dunes

What is a nature-based solution mentioned in the video for preventing erosion?

• Concrete barriers

• Reef balls

• Metal fences

• Plastic nets