The conservation of biological diversity in the Great Lakes ecosystem: Issues and opportunities Corporate author The Nature Conservancy Great Lakes Program Date 1994 Source IUCN (ID: MON-056912) Publisher | Place of publication The Nature Conservancy | Chicago, IL, USA Pages 118 p. Language English Country/Territory United States of America, Canada Subject Water, Wild species & ecosystems Keyword Biodiversity Surface water Freshwater resources management International relations/cooperation Geographical area North America