Fish Ladders

3. Toward the tail
6. to lay eggs (in large numbers); produce offspring (in large numbers)
8. shad-like food fish that runs rivers to spawn
11. Away from the midline of the body
13. A person who is trained in and uses technological and scientific knowledge to solve practical problems
14. released by weathering of phosphate rocks, it is a major limiting factor for plant growth.
17. A life cycle in which creatures are hatched in fresh water, migrate to salt water as adults, and then go back to fresh water in order to reproduce
18. energy Energy that is stored in an object based on its position
19. A biological community of interacting organisms and their physical environment.
20. microscopic animals that swim or drift near the surface of aquatic environments
21. generation the creation of electricity
24. energy the energy used to create motion and position of everyday objects
26. to move from one place to another
28. a large bird with black and white feathers that eats fish
29. organs that exchange oxygen and carbon dioxide with water

1. bloom Rapid increase in the population of algae in an aquatic system
2. Jawless fish
4. White water below a dam; downstream portion of a dam
5. Toward the back
7. energy Energy of motion
9. A large stream
10. a long fish that looks like a snake and has smooth slippery skin
12. Chest muscle
15. Electricity produced using the energy of flowing water
16. The fourth stage of a salmons life cycle. A stage where the salmon undergoes body changes so it can survive in salt water
22. Toward the belly
23. A machine that converts kinetic energy of falling water into mechanical energy by use of a rotating shaft connected to spinning blades
25. A small, silver food fish found in coastal waters.
27. ladder a device used to aid in the upstream migration of an adult salmon over a dam