1. Freshwater
Note taking guide

2. Set up the chart in your notebook
CHARATERISTICS
LAKES & PONDS
WETLANDS
RIVERS

3. Characteristics
Temperature, sunlight, oxygen, and nutrients determine the organisms in an area
Plankton-float near the surface (producers)
Nekton-free-swimming organisms
Benthos-bottom dwellers

4. Lakes & Ponds Photosynthesis takes place away from the shore
Dead and decaying matter sink to benthic zone
Eutrophication-as the amount of nutrients increases so does the amount of bacteria
Oxygen decreases and organisms begin to die

5. Wetlands Marshes and swamps Filter pollution
Reduce flooding and erosion
Habitat and breeding area for many organisms

6. Rivers Changes with the land and climate as it flows
Oxygen-rich and cold at its headwaters
In danger due to industrial pollution

7. Jeff Corwin Video List the different aquatic ecosystems visited.
List 3 biotic factors unique to this ecosystem
List 2 abiotic factors
List 1 adaptation an organism has in order to survive in this ecosystem