estuaries | AMNH https://www.amnh.org/explore/ology/ology-cards/179-estuaries/(view)/modal
Estuaries are places where a river meets the sea. This ever-changing ecosystem is bursting with life. Saltwater from the sea, brought in by the tides, mixes with freshwater from the river.
abundant regions on Earth, teeming with vast blooms of plankton