Dr. Karen Stameszkin, research scientist at Bigelow Laboratory for Ocean Sciences, will discuss plankton, the easily overlooked movers and shakers of the marine world, at the Rockport Library Wednesday, Aug. 10 at 6:30 p.m.

Looking at a bottle of seawater, you may not see much; you may see some tiny flecks, making themselves visible only when they move. Put this water under a microscope and a world of life will appear — the plankton. These ubiquitous tiny organisms play a crucial role in the ocean’s food webs — supporting life in the upper ocean, including fish and whales. They also control the flow of nutrients, such as carbon, from the atmosphere, into the sunlit portion of the sea, and into the deep ocean.

Stameszkin studies how microscopic organisms — plankton — impact ocean nutrient cycles and food webs, as well as the effects of a changing environment on ocean life. She conducts her science at sea, in the laboratory, and with computer models.

This talk will be held in person and is free and open to all.