Lake Poway, in Poway, San Diego County, California, is a man-made freshwater lak
ID: 85698 • Letter: L
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Lake Poway, in Poway, San Diego County, California, is a man-made freshwater lake -created with a little more intent than the Salton Sea. But, like the Salton Sea, the water in it came from the Colorado River. The ecosystem of Lake Poway is extensive, and consists of many biotic and abiotic factors. The lake serves as the drinking water supply for the city of Poway, and is treated very carefully by the city. For example, people are prohibited from contacting the water and pets are not allowed near the water. The water in the lake is very clean and clear as a result of these policies. Most of the fish in the lake were originally stocked by the California Department of Fish and Wildlife, and the stocking of fish in the lake continues today. The lake is popular with anglers, families, and hikers, and the facilities surrounding it constitute a large park that sees many visitors annually. The lake attracts many organisms (other than humans) that come for the water- and it attracts some organisms that come for potential meals. List the abiotic and biotic factors that make up Lake Poway's ecosystem, then answer the following questions: Abiotic Factors Biotic Factors What is the apex predator in the Lake Poway ecosystem? What organisms are the producers in the Lake Poway ecosystem? One of the organisms that "produces" energy in the Lake Poway ecosystem is a heterotroph. Can you figure out which one and how it produces the energy for the ecosystem? summarize the extent of the Lake Poway ecosystem. In other words, how far out does it extend? For example, Lake Poway's ecosystem doesn't extend to Los Angeles (or does it?), but it's influence is felt more locally. Predict what would happen to this ecosystem if humans ceased influencing it.Explanation / Answer
ABIOTIC FACTORS BIOTIC FACTORS
Light Bacteria
temperature Algae
wind planktons
chemistry(presence of minerals) Crustaceans(Crab,Cray fish etc)
Invertebrates(Fishes,Amphibhians,Reptiles)
1A) Zooplanktons are the apex producers.zooplanktons can be Herbivore(eat phytoplankton ,Carnivore(eat other zooplankton)or omnivore(both phytoplankton and zooplankton)
18) The producers are planktons, they are microscopic plants.They make their own food by converting sun light throgh photosynthesis eg green algae,large rooted plants,macrophytes etc.
Bactrioplanktons are both primary producer and primary consumer.Most are saprophytes(obtain energy by consuming organic material produced by other).
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