Bottom samples were taken bimonthly between May 11 and October 6, 1973, in selected backwater areas of the Mississippi River. The study was initiated to determine standing crops of the benthic organisms of those areas and ...

5203 This study was performed to determine the toxicity of antimycin to aquatic populations, both pelagic and benthic. Test organisms included clams, crayfish, frogs, scuds and caddisflies. Lethal concentration 50 (LC50) ...