Zoology 315: Limnology Introduction Origin & Morphology of Lakes Abigail Popp June 19th 2006 What is limnology? Limnologists study: 1. Lentic Systems 2. Lotic Systems 3. Wetlands 4. Floodplains 5. Reservoirs 6. Others History of Limnology A. Forel: Thienemann & NaumannBirge & Juday G. E. Hutchinson Art Hasler How do we study lakes? Four pillars: 1. Experiments (laboratory, enclosures, ecosystems) 2. Long-term studies 3. Comparative studies 4. Simulation modeling Applied Limnology Impacts on Aquatic EcosystemsImportance of Aquatic Ecosystems Lake Zones Lake Morphology “morph”— Measures of Lake Morphology 1. Bathymetric Map 2. Fetch 3. Maximum Depth 4. Shoreline Development FactorTypes of Lakes 1. Tectonic lakes a. Graben lakes b. Earthquake lakes 2. Glacial lakes Glacial till (drift): Ground Moraines: Terminal Moraines: Lateral Moraines: Outwash Plain: a. Ice-scour lakes b. Mountain (cirque)c. Moraine damming d. Kettle lakes 3. Volcanic lakes a. Crater 4. Others a. Solution (Karst)b. Riverine (oxbow, floodplain) c. Coastal lakes d. Reservoirs and beaver dams e. Playa
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