EXTENDING YOUR KNOWLEDGE

The following self study questions provide an opportunity the users of RAK to evaluate how well they can apply some of the factual knowledge about the physical and geological features to broader questions and issues concerning the Mekong basin as well as to other aspects of river science.

1. What are five different ways in which one species of fish can differ from another species? Why do fish differ from each other in these ways?

2. Explain what is meant by the following terms related to the ecology of fish:

1. life cycle
2. migration
3. spawning
4. carnivorous

3. Discuss in general terms the importance of the floodplain as an important fish habitat and explain how it is used by certain fish during part of their life cycle.

4. Discuss the importance of migration to the ecology of Mekong River fish and explain the difference in the habitats and patterns of migration between whitefish and blackfish.

5. Explain the relationship between river ecology, the seasonal behaviour of fish and the tremendous diversity of fishing gear and fishing methods used to harvest fish.