More and more papers

Two more interesting papers (AOR). The first one is related to the vertical migration of sonic scattering layers. Interesting to see that Uda in 1956 also observed the effect of moonlight on the vertical position of the deep dwellers. The second is an interesting experiment about the effect of nutrients on picoplankton. This is an important paper to those working on the annual cycle of micro- nano- and picoplankton.