E8 PHOSPHORUS CONCENTRATION (6) PO4-P [mg l-1] Station I1, 1972-1973 Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec ---------------------------------------------------------------------------------------------------------- .008 .002 - .001 .002 - .003 .002 .006 .002 .003 .007 Station I2, 1972-1973 .002 .000 - .002 .002 - .003 .017 .007 .000 .002 .007 Station II2, 1972-1973 .002 - - .000 .014 - .003 .005 .003 .010 .010 .007 Station III2, 1972-1973 .002 .003 - .002 .002 - - - - .003 .002 .007 Poseljani, 1972-1973 .003 .002 - - .012 - - .004 .004 .002 .040 .003