1. Perch Dissection Each checkpoint is counted as
equal parts of your lab grade:
Checkpoint #1 – External Anatomy
Checkpoint #2 – Internal Anatomy
Checkpoint #3 – Internal Anatomy Continued
Checkpoint #4 – Clean Up!

2. MAJOR duties of various TEAM Members!!
Reader
read lab procedures & specific organ system directions
keep field guide, lab papers, and table dry & clean
assist with reading of lab procedures & specific organ system directions
assist with clean up of table and materials (soap, rinse, & thorough drying of tray & table - including sink)
Clean Up
assist with prep & organization of tags/labels
assist with clean up of table and materials (soap, rinse, & thorough drying of dissecting kit instruments)

3. Preparation & Examination
Place the fish in your dissecting tray
CHECKPOINT #1
Use the following slide to help you identify the major external structures of your specimen and complete the labeling activity : External Anatomy
on the worksheet provided.

5. Internal Dissection CHECKPOINT #2
Use the following slide to help you identify the major internal structures of your specimen and complete the labeling activity : Internal Anatomy on the worksheet provided.
Cut along the blue line...
Only cut through scales, muscles, & skin.
Take special care not to cut too deep!

7. Anterior View CHECKPOINT #3
Use this slide and the next two slides to help identify the internal strutures of your specimen.
Anterior View
1. Gills
2. Heart
3. Liver
4. Pyloric caeca
5. Small intestine
6. Stomach
7. Swim bladder

8. Posterior View 1. Swim bladder 2. Gonad 3. Large intestine
4. Urinary bladder
5. Anus

9. Close-up: Body Cavity Ovary Muscle Swim Bladder Eggs Liver
Stomach
Gastric Cecae
Small Intestine
Spleen

10. Can you identify the parts?

11. Perch Dissection COMPLETED!
CHECKPOINT #4
CLEAN UP!
Put the Perch in the garbage and wipe down the blue tray and your instruments with a damp paper towel
Perch Dissection COMPLETED!