Session I: Metalloids and the Hydride Generation -- The Determination of the Chemical Species of Some of the "Hydride Elements" (Arsenic, Antimony, Tin, and Germanium) in Sea Water: Methodology and Results -- Antimony Content and Speciation in the Water Column and Interstitial Waters of Saanich Inlet -- Ultratrace Speciation and Biogenesis of Methyltin Transport Species in Estuarine Waters -- The Relationship of the Distribution of Dissolved Selenium IV and VI in Three Oceans to Physical and Biological Processes -- Session II: Arctic Chemistry -- Trace Metals in the Arctic Ocean -- Copper in Sub-Arctic Waters of the Pacific Northwest -- Low Level Determination of Trace Metals in Arctic Sea Water and Snow by Differential Pulse Anodic Stripping Voltammetry -- The Relationship between Distributions of Dissolved Cadmium, Iron, and Aluminium and Hydrography in the Central Arctic Ocean -- Session III: Intercalibration Exercise -- Intercomparison of Seawater Sampling Devices for Trace Metals -- The Analysis of Trace Metals in Biological Reference Materials: A Discussion of the Results of the Intercomparison Studies Conducted by the International Council for the Exploration of the Sea -- An Intercomparison of Sampling Devices and Analytical Techniques Using Sea Water from a CEPEX Enclosure -- Session IV: Estuarine Processes Involving Metals -- Role of Fresh Water/Sea Water Mixing on Trace Metal Adsorption Phenomena -- Effects of Particle Size and Density on the Transport of Metals to the Oceans -- The Effect of Sewage Effluents on the Flocculation of Major and Trace Elements in a Stratified Estuary -- Impoverishment and Decrease of Metallic Elements Associated with Suspended Matter in the Gironde Estuary -- The Significance of the River Input of Chemical Elements to the Ocean -- Session V: Air/Sea Exchange and Coastal Processes Involving Metals -- Air-Sea Exchange of Mercury -- Separation of Copper and Nickel by Low Temperature Processes -- The Fate of Particles and Particle-Reactive Trace Metals in Coastal Waters: Radioisotope Studies in Microcosms -- Trace Metals in a Landlocked Intermittently Anoxic Basin -- Session VI: Ocean Distribution and Analysis -- Thorium Isotope Distributions in the Eastern Equatorial Pacific -- Aspects of the Surface Distributions of Copper, Nickel, Cadmium, and Lead in the North Atlantic and North Pacific -- Mn, Ni, Cu, Zn, and Cd in the Western North Atlantic -- Some Recent Measurements of Trace Metals in Atlantic Ocean Waters -- Determination of the Rare Earth Elements in Sea Water -- The Cycle of Living and Dead Particulate Organic Matter in the Pelagic Environment in Relation to Trace Metals -- Trace Metal Levels in Sea Water from the Skagerrak and the Kattegat -- Mercury Concentrations in the North Atlantic in Relation to Cadmium, Aluminium and Oceanographic Parameters -- Perturbations of the Natural Lead Depth Profile in the Sargasso Sea by Industrial Lead -- Copper, Nickel and Cadmium in the Surface Waters of the Mediterranean -- Accurate and Precise Analysis of Trace Levels of Cu, Cd, Pb, Zn, Fe and Ni in Sea Water by Isotope Dilution Mass Spectrometry -- Session VII: Chemical Speciation -- Studies of the Chemical Forms of Trace Elements in Sea Water Using Radiotracers -- Trace Metals (Fe, Cu, Zn, Cd) in Anoxic Environments -- The Behavior of Trace Metals in Marine Anoxic Waters: Solubilities at the Oxygen-Hydrogen Sulfide Interface -- Variations of Dissolved Organic Copper in Marine Waters -- Trace Metals Speciation in Nearshore Anoxic and Suboxic Pore Waters -- The Contrasting Geochemistry of Manganese and Chromium in the Eastern Tropical Pacific Ocean -- Potentialities and Applications of Voltammetry in Chemical Speciation of Trace Metals in the Sea -- Studies of Cadmium, Copper and Zinc Interactions with Marine Fulvic and Humic Materials in Seawater Using Anodic Stripping Voltammetry -- Chemical Periodicity and the Speciation and Cycling of the Elements -- Potentiometric and Conformational Studies of the Acid-Base Properties of Fulvic Acid from Natural Waters -- Copper Speciation in Marine Waters -- Session VIII: Metals and the Biosphere -- Plankton Compositions and Trace Element Fluxes from the Surface Ocean -- Metals in Seawater as Recorded by Mussels -- Trace Elements and Primary Production: Problems, Effects and Solutions -- Trace Metals and Plankton in the Oceans: Facts and Speculations -- Sensitivity of Natural Bacterial Communities to Additions of Copper and to Cupric Ion Activity: A Bioassay of Copper Complexation in Seawater -- List of Participants -- Index of Authors.