Marine systems vary in their sensitivities to perturbation. Perturbation may be insidious – such as increasing eutrophication of coastal areas – or it may be dramatic – such as a response to an oil spillage or some other accident. Climate change may occur incrementally or it may be abrupt, and ecosystem resilience is likely to be a complex function of the interactions of those assemblages or species mediating key biogeochemical processes. Biogeochemistry of Marine Systems considers issues of...