This chapter is a review of the knowledge about the effects and consequences of ultraviolet radiation on aquatic organisms, also considering the defense and acclimatization mechanisms to reduce the impact of these wavelengths. It also considers the interaction of UVR with other global change variables (temperature, pH, nutrients, among others), which may result in greater or lesser effects than those determined individually by UVR.
Overview of the major positive and negative feedback mechanisms of climate change signals and how they affect UVR produced stress.