Scientist packs up gear used to gather shellfish samples

Amelia Ayers, a Physical Scientist with the U.S. Geological Survey, packs up the equipment used to gather shellfish samples collected at Martinez Harbor, Contra Costa County, California. The shellfish trap and composite samplers are attached to a rope with a heavy weight and deployed in the water. It is retrieved once or twice a month depending on the season. Samples are then collected and sent to a laboratory for analysis.