This journal is devoted to the publication of papers on research into the physiology of marine and freshwater animals. The coverage of the journal includes all fields of physiology as well as behavioural and neurobiological matters. Field and laboratory-based studies of excretion, osmoregulation, digestion, respiration, feeding, migration, reproduction, tidal and other rhythms, neurophysiology, neuromuscular, sensory motor control, anatomy (where relevant to physiological understanding), fine structure and scanning electron microscopy are all appropriate subjects. Studies on behaviour of animals in the aquatic environment, both natural and simulated in the laboratory, also fall into the ambit of the journal. Short reviews will be published from time to time, as will occasional book reviews. The living resources of the world's oceans, rivers and lakes are attracting increased attention as food sources for mankind. The journal will also publish the results of research involving behaviour and physiology that overlap into the areas of Aquaculture, Fisheries Biology, Fisheries Technology, Fisheries Oceanography, Fisheries Economics and Management, Fisheries Engineering or Seafood Science and Technology, or that have implications for these aspects of aquatic research.