Advances in Comparative and Environmental Physiology helps biologists, physiologists, and biochemists keep track of the extensive literature in the field. Providing comprehensive, integrated reviews and sound, critical, and provocative summaries, this series is a must for all active researchers in environmental and comparative physiology.

1 Metabolic Dormancy in Aquatic Invertebrates.- 1 Introduction.- 2 Phylogenetic Survey of Dormancy and Associated Environmental Cues.- 3 Metabolic Arrest During Anaerobic Dormancy.- 4 Coordinated Arrest of Development Under Anoxia.- 5 Anhydrobiosis: Dehydration-Induced Quiescence.- 6 Estivation in Gastropods.- 7 Directions for Future Study.- References.- 2 The Physiology of the Root Effect.- 1 Introduction.- 2 Characterization of the Root Effect.- 3 Root Effect and Swimbladder Function.- 4 Root Effect and Ophthalmic Oxygen Secretion.- 5 Adrenergic Effects.- References.- 3 Na+/H+ Exchanges and Red Blood Cell Functions in Fish.- 1 Introduction.- 2 Evidence for Na+/H+ Exchanges in the Erythrocytes of Hypoxic Trout.- 3 Effects of Na+/H+ Exchanges on the Acid Base Balance of the Blood.- 4 Effects of Na+/H+ Exchanges on Erythrocyte pH.- 5 Effects of Na+/H+ Exchanges on Respiratory Gas Transport.- 6 Other Physiological Situations.- 7 Concluding Remarks.- References.- 4 The Biology of Diving Mammals: Behavioral, Physiological, and Biochemical Limits.- 1 Introduction.- 2 The Physiological and Biochemical Limits to Diving.- 3 The Field as a Natural Laboratory.- 4 Diving Efficiency.- 5 "Diving" on Land-Sleep Apnea in Seals.- 6 What is "Normal" for a Diving Mammal?.- References.