Published paper:  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. Abstract: 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 haveshown, might be removed by chemical inhibitors (the latter may enter the ecosystem as pollutants).As an example, the author gives the results of his experiments on how surfactants [tetradecyltrimethylammonium bromide (TDTMA)] and synthetic detergents inhibited the control of plankton (Monochrystis lutheri) by mussels Mytilus galloprovincialis. The method was successfully applied to innovatively analyze the factors that are among reasons of eutrophication. Among new facts: the cationic surfactant TDTMA 1 mg/L inhibited the filtration rate of juveniles of marine bivalves Mytilus galloprovincialis, and the removal of cells of the algae Monochrysis lutheri from water (50 min, 26˚C)]. DOI 10.1023/A:1019218026198.

Keywords are given below.
Keywords:

tetradecyltrimethylammonium bromide (TDTMA), synthetic detergents, control of plankton (Monochrystis lutheri), mussels Mytilus galloprovincialis, top–down control of plankton, filter-feeders, benthic, water quality, interactions among populations, trophic chains,

Cladocera,  Daphnia magna, D. longispina, Simocephalus vetulus ,  Ceriodaphnia dubia, Chlorella sp., Raphidocelis subcapitata ,  algal population control by daphnia, heavy metals, Cd, Cu, potassium bichromate, fluoranthene, dimethoate,  dichloroaniline, trophic activity, daphnia, phytoplankton, algal populations, pesticides, endosulfan, diazinon, methylparathion, atrazin, lindan, dichlobenyl,  Workshop on Problems of Eutrophication, M.Scholten