25 resultados para Aquatic biology
Resumo:
"The Illinois Environmental Protection Agency monitors surface waters (i.e. lakes and streams) through a variety of programs. The most extensive is the Ambient Water Quality Monitoring Network (AWQMN) which consists of 203 stream stations statewide sampled on a 6 week cycle since October 1977." -- p. 1.
Resumo:
"IEPA/WPC/93-192."--Cover.
Resumo:
"IEPA/WPC/89-275"--Cover.
Resumo:
"November 1996."
Resumo:
Cover title.
Resumo:
"Report to Commonwealth Edison Company, Chicago."--Cover.
Resumo:
"Aquatic Biology technical report 1984(5)."
Resumo:
"June 1996."
Resumo:
Federal aid project F-35-R, U.S. Fish and Wildlife Service.
Resumo:
"Biology and Medicine ; Distributed according to TID-4500(15th Ed.)."