Activity #2 Dungeness Crabs at Home in Glacier Bay
1. Read: Dungeness Crabs at Home
2. Student Resources: The Intertidal Zone and The Subtidal Zones and the Ocean
Divide the following resources among three student groups:
Teaching Note: If appropriate, subdivide the student groups into smaller reading groups to help them as they read about these three important Glacier Bay environments that Dungeness crabs call home.
When the students have completed their reading, discuss:
Answer: Answers will vary with students' imaginations, but information should be verifiable from their reading.
3. Create a Web page for Glacier Bay
Invite interested students to research the Internet or the local library to find pictures of each of the marine ecosystems they read about. They could then design an information poster or bulletin board, called A Crab's World, showing the different habitats of a crab through its lifetime. The artwork should be as accurate as possible and contain as many of the known denizens of these zones. Students can then annotate A Crab's World, sharing information about the ecosystems they are depicting and the crab's life stage and role(s).
go to Activity #3 >>>
Did You Know?
Common Murres (often seen on or near the Marble Islands) have a unique nesting behavior. They lay a single egg on bare ground or rock ledges. The egg is pear-shaped which prevents it from rolling off the ledge. Each egg has unique speckles and coloration that helps the parents identify their egg.