In temperate systems. phytoplankton spring blooms deplete inorganic nutrients and are major sources of organic matter for the microbial loop. In response to phytoplankton exudates and environmental factors. heterotrophic microbial communities are highly dynamic and change their abundance and composition both on spatial and temporal scales. https://www.ngetikin.com/amazing-find-Bolia-Loop-Rug-limited-choice/