definition - at certain times of the year events can occur which can cause a rapid growth of floating algae. This profusion of green algae in the pond is called a bloom. An algae bloom can typically happen in the spring when the spring warmth allows for the algae to grow. The water in ponds in the spring is typically high in nutrients because leave [..]

explosion of a phytoplankton population, sometimes because of incoming pollutants that artificially enrich the waters with nutrients. See Eutrophication and Red Tide.

; A bloom, or rapid growth, of phytoplankton in the upper layers of the ocean, often due to an influx of nutrients, such as a sediment plume or seasonal upwelling. Area

A dense population of algae whose growth is fueled by excess nutrients. Algae blooms can block sunlight from reaching underwater grasses, and their decomposition can rob the water of dissolved oxygen [..]