Krivenko, O V; Lukjanova, A L(PANGAEA, 1994-08-04)
To study inorganic nitrogen uptake rates by microplankton in the Black Sea the first 15N-experiments were carried out in August-September 1990 and in November 1991. In surface waters nitrate uptake rates varied from 5.7 ...
Krivenko, O V; Stel'makh, Lyudmila V(PANGAEA, 2003-08-08)
Parameters of provision of the phytoplankton community with inorganic nitrogen compounds in the western Black Sea in April 1993 are analyzed (specifically, dependence of rates of uptake of nitrates and ammonium by microplankton ...