Most of what is known about the distribution of blooms of Emiliania huxleyi comes from satellite evidence. However, patches of bright water in satellite im- ages are not always E. huxleyi blooms and satellite evidence needs to be verified by in situ sampling in the area. In this article we firstly describe the observational evidence for these blooms in various regions of the global ocean, and then proceed to describe mimicking conditions: the occasional bright waters that are not E. huxleyi blooms. In the second part of this article we discuss the possible causes of the E. huxleyi blooms. We review the various hypotheses concerning the water conditions required to generate these blooms.
Tyrrell, T., & Merico, A. (2004). Emiliania huxleyi: bloom observations and the conditions that induce them. In Coccolithophores (pp. 75–97). Springer Berlin Heidelberg. https://doi.org/10.1007/978-3-662-06278-4_4