1. General2. Methods3. Chemical Composition4. Nutrition5. Respiration6. Circulation7. Excretion8. Osmotic Regulation9. Cell and Tissue Metabolism10. Growth and Molting11. Reproduction12. Locomotion13. Nervous System and Sense Organs14. Behavior15. Ecophysiology16. A Cytological Perspective17. The Genomics of Cladoceran Physiology: Daphnia as a Model18. Notes on the Physiology of EmbryogenesisConclusions: Special Traits of Cladoceran Physiology