The causes underlying the initiation of the spring diatom flowering have been a subject of vigorous discussion in recent years. With the gradual accumulation of records it has become quite clear that no one factor controls this peculiar phenomenon. The obvious prerequisite, an abundant supply of nutrient salts in the euphotic zone, is generally satisfi ed during the autumn and early winter, yet a flowering does not in most cases follow immediately....
Riley, Gordon A.. 1942. "The relationship of vertical turbulence and spring diatom flowerings." Journal of Marine Research 5, (1). https://elischolar.library.yale.edu/journal_of_marine_research/604