To estimate differentiation of activity of total alkaline phosphatase in water of the Barlinek Lake, in time April - October of 2009 - 2012. Studies upon water revealed that, among the zones analyzed, upper sublittoral layer was characterized by the highest phosphatase activity. From the analysis of seasonal oscillations it follows that activity maximum for alkaline phosphatase, both in water, occurred in July 2009.
International Letters of Chemistry, Physics and Astronomy (Volume 3)
P. Daniszewski "Activity of Total Alkaline Phosphatase in Water of the Barlinek Lake of 2009 - 2012", International Letters of Chemistry, Physics and Astronomy, Vol. 3, pp. 80-85, 2012