Pre-lab Questions:
1. Perch belong to what class of bony fish?
2. Are perch ray-finned or lobe-finned fish? Explain.
3. Name the fins found on a perch. What function(s) to the fins serve?
4. Give the function for the swim bladder.
5. Describe the external appearance of a yellow perch.
6. What is the scientific name for the yellow perch?
7. Describe spawning of yellow perch.
8. Name several organs that belong to the digestive system of the perch.
9. Describe the heart of a perch & explain blood flow through this organ.
10. Where is the lateral line found 7 what is its job?
Post-lab Questions & Observations:
1. Are both jaws of the fish equally movable? Explain your answer.
2. Does the perch have eyelids?
3. How many gills are located on each side of the perch? What covering protects them?
4. What is the function of the gill rakers?
5. Explain how gas exchange occurs at the gills.
6. Which fin is the largest? What other difference do you notice in this fin when it was compared to the others?
7. What was the sex of your fish?
8. What is the function of the lateral line?
9. Describe how the scales are arranged on the trunk & tail of your fish.
10. Explain how the swim bladder controls buoyancy.