Segment from the program: Aquatic Biomes: Oceans, Lakes, Rivers, and Wetlands.
DVD Description
Our Aquatic Biomes DVD begins by looking at the characteristics common to all aquatic environments. The program then examines the littoral, limnetic and profundal zones of freshwater lakes, the seasonal cycling of O2 and nutrients, and the difference between oligotrophic and eutrophic lakes before observing how life changes along the course of rivers and explaining the ecological importance of wetlands. The photic, aphotic, and benthic ocean zones are then described and marine habitats such as tide pools, kelp forests, coral reefs, and vent communities explored.
Purchase this DVD here http://www.greatpacificmedia.com/product_p/aquatic_biomes_dvd.htm&Click=124
DVD Description
Our Aquatic Biomes DVD begins by looking at the characteristics common to all aquatic environments. The program then examines the littoral, limnetic and profundal zones of freshwater lakes, the seasonal cycling of O2 and nutrients, and the difference between oligotrophic and eutrophic lakes before observing how life changes along the course of rivers and explaining the ecological importance of wetlands. The photic, aphotic, and benthic ocean zones are then described and marine habitats such as tide pools, kelp forests, coral reefs, and vent communities explored.
Purchase this DVD here http://www.greatpacificmedia.com/product_p/aquatic_biomes_dvd.htm&Click=124