A Powerpoint on teaching Aquatic Ecology I found this by doing a "Google Search" on "Aquatic Ecology" and ".ppt" I posted this here for the benefit of a young teacher friend, but also wanted to make the point, especially to users of eInstruction's classroom Performance System, that by doing such a search, they can easily find Powerpoints they can use with their CPS system. Also , Powerpoint will let you "save as " .jpg so you can also use individual slides as graphics to illustrate individual CPS questions. Bill McIntosh 843-442-8888 Email: WKMcIntosh@Comcast.net Authorized eInstruction Consultant www.eInstruction.com My profile : http://www.slideshare.net/WKMcIntosh/bill-mc-intosh-einstruction-consultant-2011 "Some men see things as they are and ask 'Why?' I dream things that never were and ask, 'Why not?'" Robert F. Kennedy, 1968 I am using site called Slideshare to post and share information about eInstruction’s products. Here are the links: http://www.slideshare.net/WKMcIntosh/presentations http://www.slideshare.net/WKMcIntosh/documents http://www.slideshare.net/WKMcIntosh/videos This site allows one to view the files before downloading. Because I work with some federally sponsored education outreach programs, there are some “K-12 centric” files located here, but also a lot of not only product brochures and information for corporate and government users and Higher Ed users , but also how-to and help files that my clients tell me are very useful

1. Aquatic Ecology 101

3. Types of Aquatic Systems Lakes & Ponds Rivers & Streams Wetlands Estuaries Marine system Groundwater

6. Lake Habitat Zones

10. Pond Food Web Nutrients Algae/Plants Grazers Fish Nutrients Algae/Plants Grazers Fish

11. Relationship Between Nutrients and Pond Productivity Nutrients Algae/Plants Grazers Fish Nutrients Nutrients Nutrients Nutrients Habitat/Environmental Impacts Algae/Plants Grazers Fish Algae/Plants Grazers Fish Algae/Plants Grazers Fish Algae/Plants Grazers Fish

12. Low nutrients Low primary productivity Low grazers and insects Low fish production Clear water Sandy/low organic matter on bottom

13. TROPHIC STATE Moderate nutrients Increased primary productivity More grazers and insects More fish production Moderate water clarity More aquatic plants Some organic sediment accumulation

14. TROPHIC STATE High nutrients High primary productivity Large number of grazers and insects Moderate fish production Low water clarity, or Clear with aquatic plants High organic sediment accumulation

16. Manipulating Pond Response to Nutrients Fish Grazers Nutrients Algae/Plants Grazers Fish X Algae/Plants X Source of the problem

18. Phosphorus Limitation: Lake 227

21. Questions?