IV.5 Observation of Rotifers

Aim

To examine the structure and movement of rotifers.

Specimen & Apparatus

• Pond water with plant debris
• Pipette or dropper
• Slide and coverslip
• Compound microscope

Method

1. Transfer a drop of water containing debris to a slide.
2. Apply a coverslip carefully.
3. Examine under low power to locate organisms.
4. Increase magnification to observe structure and movement.
5. Adjust illumination to improve contrast.

Observations to Make

• Body shape and segmentation.
• Movement and feeding behaviour.
• Presence of rotating structures at the head.
• Interaction with surrounding particles.

⚠️ Safety: Please read the Safety & Disclaimer page before attempting this exercise.