Origin and Distribution

The sea squirt Styela clava is native to what part of the world?
  A. North America.
  B. South America.
  C. Asia.
  D. Africa.

Transportation

Which of the following are potential ways that the sea squirt has been transported around the world?
  A. Ballast water.
  B. Hull fouling.
  C. With shipments of shellfish.
  D. All of the above.
  E. None of the above.

Environmental Impact

A sea squirt negatively affects its environment by competing for
  A. Space.
  B. Food.
  C. Water.
  D. All of the above.
  E. A and C.
  F. A and B.

Economic Impact

Labor costs increase when concentrations of sea squirts attach to lines, cages, docks, and vessel hulls.
  True
  False

Control

Methods for controlling sea squirts do not include:
  A. Mechanical harvesting.
  B. Hand removal.
  C. Sprays and dips of salt, hydrated lime or acetic acid solutions.
  D. Exposure to air or extreme temperatures.