This influences fish kill rate because higher oxygen levels in the water means more fish can coexist in the same location. a sudden decrease in oxygen levels and the fish will begin to die off because of lack of oxygen. Two sources influencing the levels of dissolved oxygen include the atmosphere and photosynthesis. The atmosphere provides oxygen for water; it dissolves slowly in the bodies of water. Photosynthesis is a important factor in the role of oxygen because plants take in carbon dioxide; meaning if there are plants there will be oxygen present. A large amount of activity in the water during night hours when plants cant photosynthesize leads to a decrease in dissolved oxygen. The cool water at night holds more oxygen but not enough for a busy body of water. Plants are beneficial in providing oxygen for water but they can also lead to decreased oxygen level. If the plant dies and begins to decompose, it is not beginning to take oxygen away from the water. The last major influence on an ecosystems dissolved oxygen level would depend if there were a “lake turnover”. The lakes surface turns over from the epilimnion (top) to hypolimnion (bottom) mixing the waters ecosystem. As a result, the lakes dissolved oxygen levels drop. Lake Turnover occurs mainly with strong wings or heavy rain that can start motion in the
This influences fish kill rate because higher oxygen levels in the water means more fish can coexist in the same location. a sudden decrease in oxygen levels and the fish will begin to die off because of lack of oxygen. Two sources influencing the levels of dissolved oxygen include the atmosphere and photosynthesis. The atmosphere provides oxygen for water; it dissolves slowly in the bodies of water. Photosynthesis is a important factor in the role of oxygen because plants take in carbon dioxide; meaning if there are plants there will be oxygen present. A large amount of activity in the water during night hours when plants cant photosynthesize leads to a decrease in dissolved oxygen. The cool water at night holds more oxygen but not enough for a busy body of water. Plants are beneficial in providing oxygen for water but they can also lead to decreased oxygen level. If the plant dies and begins to decompose, it is not beginning to take oxygen away from the water. The last major influence on an ecosystems dissolved oxygen level would depend if there were a “lake turnover”. The lakes surface turns over from the epilimnion (top) to hypolimnion (bottom) mixing the waters ecosystem. As a result, the lakes dissolved oxygen levels drop. Lake Turnover occurs mainly with strong wings or heavy rain that can start motion in the