Oxygen availability - sensory systems, M.L. Burleson; oxygen availability - brain defence mechanisms, G.E. Nilsson; air-breathing fishes - metabolic biochemistry of the first diving vertebrates, V.M.F. Almeida-Val and P.W. Hochachka; temperature - enzyme and ogranelle, T.S. Moerland; influence of temperature on muscle properties in relation to swimming performance, L.C. Rome; effects of temperature on cellular ion regulation and membrane transport systems, A.R. Crossins et al; burnt tuna - a problem of heat inside or out?, C. Watson; the effects of pressure on G protein-coupled signal transduction, J.F. Siebenaller and T.F. Murray; metabolic potentials of deep-sea fishes - a comparative approach, J.J. Childress and E.V. Thuesen; temperature, pressure and the sodium pump - the role of homeoviscous adaptation, A. Gibbs; adaptation to and effects of acid water on the fish gill, S.D. Reid; biochemical-physiological adaptations of teleosts to highly alkaline, saline lakes, E.M. Danulat; cellular mechanisms in calcium transport and homeostasis in fish, G. Flik and P.M. Verbost; biochemistry of fish migration, H. Ueda and K. Yamauchi; xenobiotics, C.J. Kennedy; pesticide metabolism and the adverse effects of metabolites on fishes, J. Nemcsok and I. Benedeczky; biochemical effects of stress, A.D. Pickering and T.G. Pottinger; estivation - metabolic suppression, mechanisms and models of control, S.C. Land and N.J. Bernier.