1) Charpy-Roubaud C. and A. Sournia (1990) The comparative estimation of phytoplanktonic, microphytobenthic and macro phytobenthic primary production in the oceans. Mar. Microb. Food Webs, 4, 31-57.
5) Admiraal W. and H. Peletier (1980) Influence of seasonal variations of temperature and light on the growth rate of cultures and natural populations of intertidal diatoms. Mar. Ecol. Prog. Ser.2, 35-43.