. . - " - * " - . . ( )" ! !" ! " # -$ (http://ecograde.belozersky.msu.ru; http://ecograde.bio.msu.ru). (# " ! "$ ! # ! $ $ "$ ! < "$ ,# # > "$ ?# , " ! ( " # ! , @ @A : 1) ? # -, ; 2) ? # )# . C , # > "$ ! > @ @ # D ! .E F ! .!.) ! ! " - " ? " < , A " , ! ? "$ ! "$ ", @ ? ?@ , . . " ! # ! > @A $ # ! "$ – @ ! # ! , ? , ! .!. E F ? ?@ ? ", @A ! # ! @ ! "$ #H , ? # " ! " ! #A $, " ! ", # #H F @A $ > # ? . I ! ( )! F ? > # " # ?@ ?@ !? ! $ # ! !", F ! F ? > (! " # $ -$ $ $, F ? " $ > ,> ! ? " ? ! "$ ! ) ! "$ #H. F " " !? , ! " ! ! ! $ ! . < ? ! " ! # ! $ ? " ! ? " ! ? "$ ! # # > ! "$ > F "$ $ ?$?!D ! ! " . A ! (http://ecograde.belozersky.msu.ru; http://ecograde.bio.msu.ru), ?@ @ ": 1) " # : )# # > "$ ?# ( ? " , , " ? "$ ), ! ": #" > # (> " ?F @A * < # !! F < " ! ? ! "$ ! ( 09-07-00204- ) 1 !", ! "$ #A $ ! , ? " @A $ # ; ! ! # ; ! ! > " ! > $ ! ; ! "$ ! ? #A ; > > ? ( " !? , #A !? , !"$ ; # " ! , #A , $? .!.), @ $, # $ $, $, ? $ $ , # F "$, ? "$ D ! ); !" # $ ! # ? ? ! ! ? "$ ! # "$ #H @A $ A , A @ $ F! $ "! –> " ! "$ > $, ? "! ?F @A !" # # ? # " ! > ! ? "$ ? ?D @A $ ! ! " #A ; #) # "$ # ! "$ (OP) > ! "$ #H O ,O ,C , ,Q , ! , C , - # , E $ ! $ ! "$ OP "$ . OP @ " ! " "$ !, : ! # ! $ # ?, # $ $ "$ ! $ # ?, ! # $ $ !, "$ ! # $ $ ( ! , # #A ! "$ ), @ @A @ -, -, # ?, ?, # ? , ! $ $ ! $ $; ) " , ! F A " $ "# $ "$ IPC A ; ) " ! !? " # ! , # , ! "$ # $ ! "$, ! !, ! # ! # $ #, ! # ! $ , ! # " ! "$ #H # #, " ? ; !) " !" # $ ; ) " , A $ ! ! !"; F) " " "$ ?# F "$ > # $ " !"; ) #H ? "$ > $ $ ? $; ) " web", A " # ! !", F web" #A > ; ) > $ #? @A $ . 2) # , A # , @A "$ ! "$ # -$ , ! F A $ OP # , F # "$ ! "$ ! , " > # # " ! ! ! 2 ! "$ #H " ! # ! # ! ! , ! . .! $ # > $ @, ! # 1) "# 2) # 3) ! " # # #A ! # !"; #) ! " ! ! " A $ ! ?@A . ! D ! " ! > ! ! " F!? > D # $ , "$ $ ! ,! " , "$ ! ! " "$ F ? . F #" D # $ . T # @A $ $ @#"$ ! ? $ ! .I ! ! > ! .P , # : ) ! – #A ! "$ @A ! ! " # #A ,$ : - ?@A # > # ? ! # , ! > > ! " ! ? > $ ? ! # "$ ? # , , ? ??- > ! ! $ $ A , # ?. T . ! : "$ "$, , $, ? ? "$ - ! ! "$ #H - . 4) 5) 6) E !! F D # " . ! ?@A $ ! , ? > ! ", : > @ # I $ ? " > ! ! ! , ? " ! , ?! # $ . > F . " D @A " ! > ! "$, # ! @, ! ?, ? , ,? !". #" " $ !", , " , ?F#" > " > ", " ! , . Bulgakov N.G. INFORMATION-ANALYTICAL SYSTEM "ECOLOGICAL CONTROL OF ENVIRONMENT BY DATA OF BIOLOGICAL AND PHYSICO-CHEMICAL MONITORING" AS A TOOL OF QUALITY ESTIMATION IN NATURAL ECOSYSTEMS Department of General Ecology Biological Faculty Moscow State University The information-analytical system (IAS) "Ecological control of environment by data of biological and physico-chemical monitoring" is realized in Internet (http://ecograde.belozersky.msu.ru; http://ecograde.bio.msu.ru). IAS consists of information (database on hydrobiology and water 3 chemistry of surface waters of Russia and adjacent countries, library of electronic publications, water quality classifiers) and analytical (programs on bioindication, which include: 1) the program of calculation of phyto-, zooplankton and periphyton saprobe indices; 2) the program of calculation of species variety indices) blocks. 4