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This study was undertaken to determine if there were differences in net primary productivity gross primary productivity and respiration for the lake and pond found in Fullerton Arboretum Pond System Phytoplankton and macro-algae was collected for both the pond and lake About 8 grams were divided and placed in 2 light bottles and 2 dark bottles The bottles were incubated for one hour and were measured afterwards for changes in oxygen concentration Figure 1 shows GPP of phytoplankton between the pond and lake gCLd were measured and the p-value was 00623 There was a significant difference between lake and pond but the p-value shows that the data was insignificant further data is needed Figure 2 shows measurements of Macro-algae between pond and lake were measured in NPP R and GPP The data was significant because the p-value was 0462 Figure 3 shows measurements in NPP R and GPP of both phytoplankton and macro-algae The data was significant because the p-value was 0006 showing that there was a difference in NPP R GPPHuman activities have threatened freshwater ecosystems The pollution of freshwater the building of dams draining of wetlands and human demand for freshwater have threatened biodiversity of freshwater habitats Lakes and ponds are freshwater water habitats which are essential resources for terrestrial and aquatic organisms Goldman cited by Fogg 1967 These bodies of freshwater that are found in terrestrial environments are known as Lentic systems which account just over 3 of the earth surface Downinget al 2006 as cited by Hoverman et al 2012 Lentic systems vary in size and water depthLentic Systems can be formed through the movement of tectonic plates and craters formed by inactive volcanoes Hoverman et al 2012 These freshwater habitats can be as large as Lake Superior or as deep as Baikal Lake of Asia Lentic habitats are categorized based on water depth and sunlight penetration The littoral zone is nearest to the shoreline and the limnetic zone is
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