UNITED STATES DEPARTMENT OF THE INTERIOR, Oscar L. Chapman, Secretary 
FISH AND WILDLIFE SERVICE, Albert M. Day, Director” ~~ 
Special Scientific Report - Wildlife 
No. 10 
EFFECTS OF DDT ON SALTMARSH WILDLIFE: 19h9 
by 
Paul F. Springer and John R. Webster 
Biologists 
(95-7 

CONTENTS 
Introduction @eseoeseeoespseeoeeaew ceases eevoevnesep eee eceeoeceoeosaepeeeee oe eseecenveo se 
Spraying Program TOEEEETEEITECERTTRETETTETE ree 
Species Studied ccccccccccccccccccccccccsenvcesccccceee 
Nature of the Marsh secccccscccccccccccccccvcssesecesecs 
Tidal Movements @e@eeeaeeoeoseeveeoeeeevenveoeaeeoe eee eaeseeovoeeeseeonnene eee 6 
Effects of Spraying on Vertebrates ccccccccccccccccccccscves 
Birds eeeeoeeeseeevnvseeeneeeeeeeeee ones eeoeeeeeoeevseeoneaeeoeeneeeaeneee 
Fishes eeeeeovoveeeeeeeeeeeveseeeeoese ees ovnvneeanaseeeeseeeeeoeeneee 
Effects of Spraying on Invertebrates ceccccccccccsccrccccece 
Insects @eeceoecoeeeeceeseevovneeeenesoeoseeeasneeseeceso een eeeaeeeneeaeee ase 
Blue Crabs eeonogeoeoeoeeeoceoneeecevueeeeoenevnaeseeaneeaseeoeoeoeveaeeeeneneeeaee 
Fiddler Crabs eeeeeeveeceeeeseoeoeecoeegaesoeooeaoseneeoeveseeeeveeee6 
Other Invertebrates cccccccccvccscccsvesreccsecescvesee 
Summary COSHH HESEHSEHHSHHEHEHESHSHEHEHOHEHTHSHHEHRHEHOHES OOH OSH EEDE 
SSSERRonnuewurrdk 
