Introduction The problem the students need to solve is whether or not the river is healthy. The overall concept of this trip is trying to prevent dead zones. Dead zones or eutrophication is when algae grows in excessive amounts, blocking the sunlight, which causes a lack of oxygen, which is essential for survival. To find out if the river is healthy, the classes performed chemical tests, scored macro levels, and made physical observations.
Several experiments were conducted in order to test the water quality of a nearby water source, otherwise known as Lake Ripple. Such tests included testing for bare soil, bank erosion, water odor, soil odor, water appearance, benthic macroinvertebrates, coliform bacteria, dissolved oxygen, BOD, nitrates, pH, phosphates, temperature, and turbidity. All of these tests would be used to determine the overall quality of the water of Lake Ripple. There were two testing sites used to determine more accurate results. Samples were taken from water sources on the hill near the school grounds and from the area around the dam.
They are mostly found in lakes and ponds. They create a well balanced ecosystem by being the prey of amphibians and small water insects and eating algae found in ponds and lakes. When there is not Daphnia present in lakes and ponds, an increase of algae and decrease of fish can be seen. Because of their sensitivity to the surroundings and its transparent carcass, when Daphnia are in hypoxic conditions, more hemoglobin is produced and they appear red. Hypoxic is when the body or part of the body is lacking adequate oxygen supply.
Research Protocol – Monitoring of the Daphnia magna heart rate The experiments focused on the four treatments of nicotine, caffeine, ethanol, and double distilled water (placebo). 180 μL of each bioactive solution (nicotine was covered with foil, due to light sensitivity) and 120 μL of double distilled water were placed into labeled eppendorf tubes to dismiss cross-contamination, and were placed on ice to match the environment of the Daphnia to reduce any added stress on the Daphnia. One Daphnia was placed on the testing petri dish, and then all the excess pond water was removed with a transfer pipette. Immediately 10 μL of double distilled water was added with a micropipette; this way our concentration of the treatment was the intended concentration.
While copper colored fish briskly swim in the frothing waters, the river's peak like eyes gaze into the snow blinding distance at The Purple People Bridge, that crosses over it like a deep arch in its back. The river hears the light, brown snake slither across its muddy waters and feels the tickles on its mushy river bottom as the small hard shell turtle crawls around in search of food. The river's beautiful twisting and winding flow is full of life, The Ohio River, keeps flowing through its course like blood flows through the veins in the human body. Its roaming
As a result of being in a narrow container, there was nowhere for the duckweed to seek protection from the constant exposure to light. Duckweed tend to bleach as a result of too much light exposure and prefer to grow on surfaces where they can seek protection from shade (“Growing Duckweed,” 2015). Another error in the experiment was not testing the quality of the water. Tap water was used, as opposed to distilled water that is boiled to remove contaminants and chemicals or purified water that has most harmful substances removed (French, n.d.). An impurity or chemical in the tap water might have contributed to the death of the
The 2009 documentary River of Waste, directed by Don McCorkell, attempted to encourage the people to make sure to have a cleaner river and not to litter it with trash. They are trying to encourage you to keep a clean river. It would be better to have a clean river and not one littered with garbage. One where people throw away the trash and recycle any type of cans or plastic. Not throwing it in the river because that would kill a lot of fish and make the river look nasty.
It shows what and how many different types of pond animal species there are in the pond. for example in experiment A there are 4 pond snails and in experiment B there are 6 pond snails. So the table and the graph give me a brief information on how many animal species and animals of that species I found in experiment A and B. So my research shows that my hypothesis was not clearly correct because their can be other possibilities but my research supports my hypothesis. My claim was that the more plant cover their is the less pond animals or insects there are and their will be different types of species of insects in different areas.
I believe that the benefits clearly overpower the limitations. Even though it is hard to protect some animals because they cannot be together and plants would not be able to have photosynthesis, some animals are very important to keep in a containments if we want them to stay alive and not become extinct. I believe that plants most of the plants should not be kept in containment since they need the sun to stay alive, some animals do need to be in containments if they want to stay alive for example amphibians. UV Radiation can monitor a large group of species at once, ensure continued survival, make sure they do not come extinct. UV Radiation can also preserve the surrounding environment such as trees and plants and make sure they stay alive.
With that said, their role does not end there, but they are also responsible for continuing researching on better ways to improve public safety while emerging disease are emerging. With that said, all public health professionals as independent scientific and administrative leaders, are also responsible for educating themselves about the zoonotic infectious agents as well as understanding the mode of transmission, their hosts, their biology including their history. As it is mentioned in the scenario, this issue is not a common problem in the area. Public health professionals need to also understand the severity and priority of a zoonotic disease issue; therefore, this matter must not be put on the "later
The first experiment would be the most simple. In the fall before frogs start to hibernate, collect different species of frogs. In a lab you could then set up and experiment. You could simulate the winter by lowering the temperatures the frogs are living in during the lab. Then set up a few different tanks such as one with just water in it and leaves at the bottom, one with just leaves covering the bottom and one with rocks and logs.
Drinking water will be improved if there is a chart for how much the water can be purified with the amount of chemicals and how much to be added to make it healthier for human consumption 's. When you take steps to be proactive about maintenance it could help with the pollution making its way into the water
If the acidity or alkalinity levels were high scientists would have to find a way to neutralize the acid and alkaline. We also did not find a high level of phosphates and nitrates in the water. My group also did a dissolved oxygen test on the water. The velocity of the surface water of the creek is at a normal rate. The Conodoguinet Creek appears to be healthy right now.
Can the reconstruction bring back the natural vegetation in the wetlands that the C38 project destroyed of the water ways? The restoration methodology used is backfilling the C-38 canal to restore the flow and function to the historic river that became stagnant and lifeless due to low oxygen conditions. The river is being restored in 4 construction phases. The Core of Engineers (COE) and the South Florida Water Management District (SFWMD) work closely using adaptive management strategies to ensure the restoration meets its goals. The SFWMD scientists set up a Performance Evaluation Program that consist of 25 performance measures that evaluate every component of the restoration including – hydrology, water quality, geomorphology, vegetation, and bird, fish, amphibian, reptile and invertebrate communities.