Dredge oyster

High school (ages 12+)
Food & Cooking

Name:

Date:

Step 1 · Read the article

Open the article and read it at the level above. Then answer the questions below in your own words.

https://smallwhale.org/articles/dredge-oyster

Write what each word means, using the article.

Do not copy the article. Write two things you learned, the way you would explain them to a friend.

Answers below are taken from the article’s stored facts, so they match what the student read.

1. What is the scientific name?Ostrea chilensis
2. What is the family?Ostreidae
3. Why is the dredge oyster called 'ostra verde' in Chile?The name 'ostra verde' means 'green oyster' because the shell is often greenish. It is a common name used in Chile to describe this species.
4. How do dredge oysters help keep the ocean clean?Dredge oysters filter water by pumping it through their gills. They trap tiny food particles and remove excess nutrients and pollutants. This keeps the water clear and helps plants grow.

Bivalve Mollusc: A marine or freshwater invertebrate animal with a soft body enclosed in a shell of two hinged parts.
Ostreidae: The family of oysters, characterized by their irregular shells and sessile lifestyle.
Biofiltration: The process by which organisms, like oysters, remove contaminants and particles from water.
Eutrophication: The excessive richness of nutrients in a lake or other body of water, frequently due to runoff from the land, which causes a dense growth of plant life and death of animal life from lack of oxygen.