Document 6bLoXOKkzGBre9w61MkvYqQbm

SCIENCE INFORMATION EXCHANGE S M m IL'ONI AN I N T I i l.' T I O M v; .to u h.-n. riiONi-: 20.1 jin vi.n WASHINGTON, D.C. 2001C ZUII- U2 } lUTUl'lHU PE PA FT WENT MJi'EAU OF :>J'ORT FISH. 6 WLF. FI .'>11 FK Y RESEARCH DIVISION FH 222 W V i l K IFF PC I' OF PESTICIDES ON PRlrtARY PRODUCERS IU A FRESHWATER ECOSYSTEM (AIVIOTFV.) . .. ... ..... . ____ ____ ____________ __________ _______________________________ I IT JOHNSON FISH PESTICIDE RES LAB II..S. DEFT. OF INTERIOR min. of spout fish, s wildlife ROUTE #1 .. COLUMINA MI.SSmHLL-ll^OJ___ SUMMMtY OV IfU'JtCl: 7/70 TO 6/71 FY7 1 FUNDS 111,61(1 Axenic phytoplankton cultures are exposed to different insecticides and her 1) icides, alone and in combination at environmental . concentrations. The polychlorinated biphenyl Aroclor series are studied also in conjunction with pesticides. Fifed s on photosynthesis are measured by changes in Clh-uptikcusing a liquid scintillation method. Biomass is determined by direct cell count, dry Mflight and ATP content.. ATP is quantitatively (letoi mi nod utilizing the luci for in-1 uci Ic ra se enzyme system. MQNS 096715