The question this report is based off is, “What is the water quality of the U-High creek, based on the invertebrates found in the water?” Water quality is measured by levels of pH, nitrogen, phosphorus, and dissolved oxygen. Dissolved oxygen is simply oxygen molecules that have mixed in with water molecules (Riverwatch). First, there are measurements for finding the ratio between oxygen and water molecules. The ratio is milligrams per litre. For every litre of water there should be 1-14 milligrams of oxygen. This will help sustain a healthy water to oxygen ratio. Bacteria also use oxygen when they decompose dead organisms (Riverwatch). With this data, it is known that when the amount of bacteria increases, then the water quality will slowly decrease. The definition of pH is measurement of the relative acidity of solutions such as water which is a unit of measurement that relates to the acidity of solutions (Riverwatch). The pH range for water is 6.5-8.5ph. If the pH level is in this range, one could conclude that the water in question is healthy. pH is important for water quality because with less pH, the solution might have more acid. With more pH, there is more alkalinity. Alkalinity is the way and capability to neutralize acids in solution. Nitrogen is an element on the periodic table that is abundant on Earth and enters the water through run offs when it rains. Organisms need nitrogen because this element is necessary to make proteins and nucleic acid. The
At the first station I was at, we were looking for macroinvertebrates and crustaceans. When we found one of the insects we had to determine which group they belonged in. One way to determine if the water is polluted is to look at which group the critters are mostly from. My group and I tested this by taking turns going into the creek and finding a rock to bring out. When we brought the rock out of the water and back to our group we had to make sure to turn the rock over because the critters normally live on the bottoms of the rocks and most likely would fall off if you didn’t turn it over. After we all took turns a couple of times
Each person got to test either the phosphates, nitrates, dissolved oxygen, or the ph in the creek. Phosphates and nitrates are nutrients found in water due to fertilizers, decaying plants and bacteria. Dissolved oxygen is the amount of gaseous oxygen dissolved in the water. As we recorded our results, we discovered that the dissolved oxygen levels were very high, which is good because the higher amount of dissolved oxygen in the water, the healthier the creek is. The phosphates levels in the creek were all perfect zeros, which is great because having nutrients in the creek is not healthy. The nitrate levels were slightly higher, at 0.9. That is not bad at all, but it isn’t perfect, showing signs of pollution. The ph levels in the rocks were neutral, right at seven. If they were lower than 7, that would mean they have acids in them, and if they were higher than 7, they would have alkaline in them. Alkaline, or bases, neutralizes acids. The number of rocks that we found that neutralized acid was 65, and the number of rocks that did not neutralize acids were 29. This shows that about one-third of the rocks in the creek do not neutralize acids.
At this station, we tested the creek water for phosphates, nitrates, and dissolved oxygen. What we found for phosphates was an average of 0.3 phosphates. For nitrates, we found an average of 0.8 nitrates. For the dissolved oxygen, we got an average of 11.4. This shows that the Conodoguinet Creek is pretty healthy. We also tested for acidity and alkalinity. To do this, we needed to use a pH scale. A pH scale goes from 0 (acidic) to 14 (alkaline). A good place for the water to be is 7, this means that the water is not acidic, nor has alkaline in it, but it is neutral. The water in the Conodoguinet Creek was at 7, so it was
The first piece of evidence supporting this statement is a water quality index of 48. The 7 pollution sensitive organisms in the creek are worth three points each on the water quality index, plus the 10 moderately tolerant organisms each 2 points and the 7 tolerant organisms each 1 point add up to get the 48 water quality index. The water quality level is considered excellent if it is 23 or above. The water quality in the U-High creek is more than twice that. There were many different types of organisms found in the creek including 7 pollution intolerant micro invertebrates. The total number of organisms including the 88 pollution intolerant Caddis fly larvae point to a low pollution level in the creek. The 10 moderately tolerant micro invertebrates also point to low polluted creek. There were also a high number of midges and aquatic worms. The water in the creek was also very clear and did not have a smell. There were many small fish and plants growing in and around it concluding a low pollution level in the
The first station we had was counting crustaceans and macroinvertebrates in the water. We found 113 critters that belonged in group 1 which means it is quality water. There were 2 organisms in group 2 which was somewhat quality water. Also, 16 critters in group 3 which means the water is very polluted. Overall, based on the critter
The pH scale is 1 to 14, 7 being the best quality. To the right is a pH scale. 7 is what the water should be. 7 is also what we had for the creek average. We had a higher number of rocks neutralizing acid (limestone is the stone found mostly in the creek) than the ones that don’t. this means that the acid rain we get is mostly neutralized by limestone in the stream. We get acid rain from Philadelphia. This is because of the massive steel companies. All of the toxic smoke comes over and comes down in the conodoguinet as acid rain. So the creek is non-acidic and non-alkaline.
The eutrophication test tested if the creek has too many nutrients. If we found high levels of phosphate and nitrate in the water, that would mean the creek has eutrophication, which is bad. Phosphate and nitrates are found in fertilizers, and some detergents. On average, we found out the creek had .1% phosphate in it which is good.We, also, found out that was .9% nitrate in the creek, which is also good. The dissolved oxygen test tested how much oxygen was in the water. We found a 9.8% average for dissolved oxygen, which determines the type and number of macroinvertebrates that may live there. In past years it was tested that the water was warmer. The velocity of the water could affect this. As a result, I conducted the river does not have eutrophication.
One of the things students tested in the creek was the chemical composition. We were testing for eutrophication and acid rain pollution. As was aforementioned, eutrophication is extra nutrients in the water. It comes from runoff from the land through the form of overfertilization and sewage treatment plants. The tests performed to test for eutrophication were nitrate and phosphate tests. The phosphate and nitrate tests were conducted by filling a cup with water and breaking the tip of an ampule so it would fill with water. The liquid in the ampule would change color based on the amount of phosphate or nitrate in the water. Phosphate is a salt or ester of phosphoric acid containing PO43− or a related anion or a group such as —OPO(OH)2 in fertilizers and sewage treatment plants. Either or both of those two things could have runoff from the land and drained into the creek. They are negative to the creek. Our results showed that the creek
The health of the Susquehanna River and Chesapeake Bay was found based on Biological (macroinvertebrates and wildlife) and Chemicals characteristics (pH, dissolved oxygen, phosphates, nitrates, etc.) as well as physical observations (amount of forested buffers, wetlands, etc.) Overall it was concluded that the health of the water was good to excellent. What was found was that many of the macroinvertebrates found in the water were sensitive or facultative, meaning the water quality was good enough for them to live in. Also, the level of ph, temperature, dissolved oxygen, phosphates, nitrates, and turbidity showed that the water quality was good. Finally, while we were canoeing down the Susquehanna River, observations were made on the land
Through our research we aimed to determine if there were any differences in water quality of both the north and south forks of Strawberry Creek. As time progresses and the environment changes it is important to keep track of how certain species are being impacted by these features, and how they cope with change. We hypothesized that due to the lack of pollution, the south fork will promote a greater diversity of macroinvertebrates. This was due to the fact that there was less runoff and trash that could be introduced to the water in the south fork, than there was in the north fork. We gathered data by analyzing the different organisms living in both forks. We collected a total of fifty vials composed of five organisms from each fork, and inspected them under microscopic view. After gathering data and identifying the different kinds of organisms living in the different forks we assessed whether the organisms from the samples could live in high or low resolution water. We also took a t-test to assess the probability of these differences being due to relevant factors or by chance. Our major findings suggest that organisms in the south fork showed a higher demand to living in cleaner water indicating that our hypothesis was correct.
Measuring the water quality is important because water quality is absolutely vital for the river to be a healthy environment for the organisms around it. Water quality, if good, will support native fish, various microorganisms, various species of plants, and bird populations. The quality of a river’s water is commonly decided by its physical, chemical, biological and aesthetic traits. A healthy environment is one in which the water quality supports a healthy ecosystem; many of our own personal uses depend on the quality of the water that will be used drinking, fishing, recreation, and many other important uses. [2]
Overall, the more macroinvertebrates in the water, the healthier the stream. pH is a measure of how acidic or basic water is. It is measured on a scale from 0-14. 0 is the most acidic, 14 is the most basic, and 7 is neutral. It is the measure of the relative amount of free hydrogen and hydroxide ions in the water. Acidic water has more hydrogen ions, and basic water has more hydroxide ions. When water’s pH is around neutral (7), that is a suitable and healthy living environment for fish, and indicates a healthy stream. If the water is too acidic or too basic, it can be harmful to the aquatic life. Dissolved oxygen is a measure of how much oxygen is dissolved in the water. As the amount of dissolved oxygen drops below normal levels in water bodies, the water quality is harmed and creatures begin to die off as a result of eutrophication. The higher the level of dissolved oxygen, the healthier the stream. When there is a lot of dissolved oxygen present it makes for a safe environment for fish to live and reproduce. Having all this healthy fish can provide us with food, so overall the more dissolved oxygen, the better. Nitrates are a compound found in fertilizers that is used to help plants grow. It is what is given off as a result of the use of nitrogen in water. The organisms in the soil eat the nitrates and it helps the metabolism and the health of organisms. Plants, such as Algae use nitrates as a source
After taking samples, and running tests on the water of the U-Creek, the conclusion was made that the water quality of the U-Creek is excellent. Water quality is not excellent in all cases, but keeping good water quality is very important for life of the organisms in the water. One way that humans could change the water quality, or pollute the water is through runoff. Rivers are a very convenient place for the companies or farms to get rid of waste. For example, farmers put pesticides and fertilizers on their crops to protect them from bugs, or to help them grow better. Fertilizers contain nitrates and phosphates, if large amounts of these two things end up in the water it will lead to an overgrowth of plant life, and algae growth. Over time as the algae starts to rapidly grow, the algae will start to use up all of the dissolved oxygen in the water. Dissolved oxygen is very important to organism life so if it is all gone then organisms will start to die. Another way that humans pollute water is through chemical water deposits. Chemical waste is discharged from industrial processes, that can end up in rivers or streams. An example of a
The Importance Of Water To Living Organisms Water is normally the most abundant component of any living organism. As most human cells are approximately 80% water and 60% of the human body is made up of it, it is extremely important in many different ways to both the survival and the well being of living organisms. Evolutionists believe that life probably originated in water and even today thousands of organisms make their home in it. Water also provides the medium in which all biochemical reactions take place. The importance of water to living organisms originates from its many properties including its solvent properties, its high specific heat capacity, its high latent heat of vaporization,
Water is essential for life as we know it on earth. It is used by plants