Download Freshwater Notes

Freshwater
Note taking guide
Set up the chart in your notebook
CHARATERISTICS
LAKES & PONDS
WETLANDS
RIVERS
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
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
Wetlands
Marshes and swamps
Filter pollution
Reduce flooding and erosion
Habitat and breeding area for many organisms
Rivers
Changes with the land and climate as it flows
Oxygen-rich and cold at its headwaters
In danger due to industrial pollution
Jeff Corwin Video
1. List the different aquatic ecosystems visited.
2. List 3 biotic factors unique to this ecosystem
3. List 2 abiotic factors
4. List 1 adaptation an organism has in order to
survive in this ecosystem