Oceanography 204 Extra Credit
Winter 1998
Due: March 5

Seattle Aquarium Extra Credit Exercise

Questions

The world’s largest octopus lives in Puget Sound. Fill in the following information about the Giant Pacific Octopus:

Maximum weight ___________________

Maximum arm span ___________________

Maximum life span ___________________

There are three main groups of fish. Name the three groups and name one example for each group:

Group 1 ___________________ Example ___________________

Group 2 ___________________ Example ___________________

Group 3 ___________________ Example ___________________

Define the three types of symbiosis. Provide examples of each.

Are sponges plants or animals? How do they gain nutrients?

The world’s largest burrowing clam lives in Puget Sound. Fill in the following information about the Geoduck:

Maximum weight ___________________

Maximum life span ___________________

Maximum digging depth ___________________

 

More than 20 species of Seastars live in Puget Sound. What do they eat?

What is the common name of the biggest Seastar at the aquarium? How big is it?

Explain the following terms in relation to the coral reef environment. Also discuss physical adaptations that correspond to each.

Diurnal:

Crepescular:

Nocturnal:

The Flashlight Fish lights up. Explain how and why they do this. What are some disadvantages of this adaptation?

There are 3 distinct types of underwater habitat in Puget Sound. Three kinds of fish (each corresponding to one of the habitat types) are listed below. Fill in the name of their habitat and tell me something about the particular fish.

Grunt Sculpin:

Bay Pipefish:

Ratfish:

Write a paragraph discussing the main environmental problems facing salmon.

 

Write a paragraph discussing the main environmental problems facing Puget Sound.

What was your favorite animal at the aquarium? Why? (Be descriptive, sincere, and creative.)