Multiple Traps

Many moorings have more than one sediment trap attached to them. Additional traps can be used to provide replicate samples, to permit the use of different preservatives allowing for more types of analyses to be run on the sediments, or to look at the effect of increasing depth on particle flux, particularly organic carbon. In the photo below are cups from four sediment traps located at different depths (250, 400, 900 and 1200 meters) on a single mooring in the Cariaco Basin.