||Stocker R. Marine microbes see a sea of gradients. Science. 2012 Nov 2 338(6107):628-33. doi: 10.1126/science.1208929. p.628 right column 2nd paragraphPubMed ID23118182
||D. L. Kirchman, Microbial Ecology of the Oceans (Wiley & Sons, New York, 2008).
||"It has long been recognized that the water column
is dotted with copious sources of microscale heterogeneity
(Fig. 1). A ubiquitous case is the “phycosphere,”
the region surrounding a phytoplankton
cell, which harbors gradients of dissolved organic
matter [DOM operationally defined as the organic
material <0.7µm in size (primary source)] and oxygen
that attract heterotrophic bacteria (refs 4, 5)."