From the information given, we can clearly say that the growth of algae has impacted the death of the fish living in the lake. Algae, a primary producer, is a certain type of bacteria that survives in the upper layers of water which gets food and energy through photosynthesis during daytime and respiration during the night. Fish are an aquatic animal that need oxygen in order to live. Looking at the graph, we could tell that as the sky gets dark outside, the oxygen levels in the water start lowering. The fish are fine during the daytime since the algae produce their food and energy through photosynthesis. Photosynthesis is the process of converting light energy to chemical energy that can be used to fuel the organism’s activities. Photosynthesis is when the organism takes in carbon dioxide and releases oxygen.
When the sun goes down, the algae start to respire. Respiration is when the organism takes in oxygen and then releases carbon dioxide to create energy.
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This human activity is adding nutrients to the water system, which then goes to the lake. These nutrients are then consumed by the algae, which speeds up the growth of them and decrease the amount of dissolved oxygen in the water. More algae means too little dissolved oxygen for the fish. Too little dissolved oxygen means that many of the fish will die off. Since it was on the south shore of the lake, where there are human residents, that was affected, it points towards mostly the human activities. Human activities are the big reason behind the decrease because if they had not thrown away excess fertilizers and detergents, the algae would not have overgrown, taken most of the dissolved oxygen gas, and make it harder for fish to survive. Other factors would be that the respiration of the algae during the nighttime and the warm waters that provided less dissolved oxygen had killed off the
And the smallest zooplankton (called micro‐zooplankton), fell by about 90 percent.” Finally, dissolved oxygen in the river dropped by 15
One issue found is the creation of smelly phytoplankton that makes murky unclear waters along with aquatic impurities. Moreover, the reduction of growth due to poor light conditions and dying plants make it difficult for predatory fish to hunt leading to overpopulation. (Chislock, 2013) Eutrophication can be found in many of our water resources such as ponds, estuaries, and bays. One region with high areas with eutrophication is in a lake shared by Kisumu, Kenya and Kampala, Uganda.
All organisms need oxygen to survive and when their is not enough oxygen, it leaves plants and animals to die. The area of water where there is a low count of oxygen are often called a dead zones. Also, an increase of the pH level in the water can be created because of algae blooms. The toxic killing algae can make humans sick. For the aquatic animals, these toxins attack mainly the organisms liver and nervous system (Nitrogen and
First we will be talking about the negative effect. According to USGS (The United States Geological Survey) ever since the Introduction of Zebra Mussels to the Great lakes,” Large populations of zebra mussels in the Great Lakes reduced the biomass of phytoplankton significantly following invasion. And the Diatom Abundance as decreased by 82-91 percent.” Zebra Mussels consume plankton as food which leaves Small fishes such as young sportfish without as much food. These small fishes depend on Plankton for growth and survival.
The algae washes up on shores and destroy the beautiful of the beaches. This also has a side effect on the economy. A nuclear power plant had to be shut down from the algae problem which has cost them hundreds of thousands of dollars per day.
phosphates and nitrates ) - which is when fertilizers < such as those on farms > can seep through the soil or even run down the soil - called runoff - into the creek causing the water to have more nutrients than it should. ) Depending on how much pollution there is depends on how much algae there is ( the more eutrophication -there is the more nutrients in the water- results in how much algae there will be.) We were also testing on the pH scale ( which measures the acidity or alkalinity of water ) goes from 0 - 14 where 6 - 0 is higher acidity and 8 - 14 is higher alkalinity ( alkalinity is what neutralizes/destroys acid. ) 7 on the pH scale is neutral and that is the ideal water for the ecosystem. The pollution that we were testing for is where the acid came from to begin with.
Lake Erie has been a huge topic for Ohioans due to how polluted the water is. Lake Erie is Ohio's biggest water source, and that being polluted is not good for Ohio and other states that use Lake Erie’s water. Though this is not the first time this has happened before, in 1960 the lake was VERY polluted due to heavy industries lined up on the shore lines. Lake Erie called the “Dead Lake” for how much pollution was in it, and how many dead fish there were.
“The toxic algae bloom in Lake Erie that provoked last weekend 's tap water ban in Toledo, Ohio—where nearly half a million people were told not to use water for drinking, cooking, or bathing—is a preview of similar problems to come around the world, scientists say, thanks in part to climate change.” (Jane Lee). There could be many fish killed if there is another algae bloom. The water crisis is caused by warm water and runoff.
The algal bloom also covers the surface of the water near shorelines and shallow water which is where the manatees are and so when the manatees come up for air they may not be able to or they will ingest the toxic
The purpose of this lab was to test the effect of pollution on algae growth. Through a series of experiments that lasted a month, four of the six hypotheses were proven to be correct or partially correct. The first hypothesis stated that if 0.5 mL of salt was added to algae, then the algae would grow slower than the positive control. This was proven correct, as shown by the difference of the data from the positive control and the container with 0.5 mL of salt in it.
The process of photosynthesis is vital for the survival of most life on Earth. Without photosynthesis plant life would be unable to create its own food and sustain themselves causing them to die. Earth would lack the oxygen and energy that plant life provides. Producers are the main source of energy for living organisms because they can directly absorb light energy and turn it into chemical energy. Animals then eat the plants which give them a portion of that energy.
However, during El Niño, the wind gets weak and so the warm water in the west goes back to the east. As a result, the eastern Pacific ocean gets warm. So basically El Niño causes warmer water which leads to less phytoplankton. Because there is less Phytoplankton—the bases of the food wed—marine species are highly affected. Eventually, these marine species dramatically decrease in their habitat.
photosynthesis and cellular respiration are extremely important in the cycle of energy to sustain life simply because nutrients would not metabolize in a productive manner. Both have numerous stages in which the process of energy occurs, and relationships with organelles located in the eukaryotic cell. Photosynthesis is a process by which green plant and other organism manufacture their food using sunlight to synthesize foods from carbon dioxide and water while cellular respiration is the oxidation of organic compounds that occurs within cells, producing energy for cellular processes. Photosynthesis occurs within organelles called chloroplasts. These organelles can absorb light, and are located inside of leaves.
Certain species have a huge impact to an ecosystem, but even the smallest fish could have the biggest impact. Overfishing occurs when more fish are caught than the population can replace through natural reproduction (overfishing). The results not only affect the balance of life in the oceans, but could also affect the coastal areas that depend on fish for their way of life. For centuries, our seas and oceans seem to be considered a limitless food supply. But that is not the case, increasing fishing efforts over the last fifty years as well as unjustifiable fishing practices are pushing many fish stocks to the point of extinction.
Hence, overfishing threatens coastal nations down to the local level, devastating communities whose dominant sources of labor and revenue hinges on healthy, plentiful stocks of fish. Also, marine life imbalance may affect the targeted fishing of top predators such as billfish, sharks and tuna that eventually disturbs marine communities. In fact, it is causing increased abundance of smaller marine animals at the bottom of the food chain. This in turn has impacts on the rest of the marine ecosystem, such as the increased growth of algae and threats to coral reef health.