Ostroumov S. A. Inhibitory Analysis of Regulatory Interactions in Trophic Webs. -Doklady Biological Sciences, 2001, Vol. 377, pp. 139–141. Translated from Doklady Akademii Nauk, 2000, Vol. 375, No. 6, pp. 847–849. [In the paper, the author developed a new approach to analyze the fundamental ecological issue, the interactions between organisms in ecosystems. He suggested to use the methodology of  inhibitory analysis to study interactions in trophic chains. Important situation is the top–down control of plankton by benthic filter-feeders. This control, as author’s experiments have shown, might be removed by chemical inhibitors (the latter may enter the ecosystem as pollutants)]. http://sites.google.com/site/2001dbs377p139inhibitory/; http://blog.researchgate.net/masterblog/299_Inhibitory_Analysis_A_new_method_for_analyzing_interactions_between_organisms_in_ecosystems;