Abstract
Free floating sediment traps were suspended at 200 and 900 m in the northern north Pacific Ocean during May 20-21, 1974. A considerable number of large, dark green particles, larger than 1 mm in diameter, was collected at both depths. These large particles corresponded morphologically with fecal pellets of salps. Vertical C flux was estimated to be 10.5 and 6.7 mg C m-2 d-1 at 200 and 900 m, respectively. Vertical transport of salp fecal pellets could play an important role in meeting the energy requirements of bathypelagic organisms in the open ocean.