👉 Macroplankton is a broad term used to describe all marine invertebrates that are larger than 1 cm and have a skeleton composed of a central, or mesopelagic, layer. These microorganisms play an important role in nutrient cycling in coastal environments by absorbing nutrients from the ocean floor through their specialized cells, which can be found in the deep layers of planktonic organisms like zooplankton, benthic foraminifera, and macroalgae. Macropl
