In addition to nitrogen and phosphorus, what nutrients can limit productivity in the open ocean?

Question

Quizplus · Accepted Answer

Silicon and iron are two additional nutrients that can limit productivity in the open ocean. Silicon is essential for the growth of diatoms, which are phytoplankton that contribute significantly to the ocean's primary production. Iron is necessary for the growth of cyanobacteria, another important group of phytoplankton. Both of these nutrients are often present in low concentrations in the open ocean, limiting the growth and productivity of these key primary producers.

In Addition to Nitrogen and Phosphorus, What Nutrients Can Limit