Introduction: Biodiversity is important for all living organism including plants and animals. Without biodiversity, there would be no balance between organism and their environment. Biodiversity helps to maintain the balance of nature to sustain all life on earth; one species will not overpower another because of the effect of biodiversity. Not only does biodiversity maintain the balance of nature it is also used to indicate health in the aquatic community. Dissolved-oxygen is measured in the aquatic environment to test the health of the water. Levels of dissolved oxygen fluctuate with temperature, salinity, and pressure changes. All forms of aquatic life depend on dissolved oxygen in the surface water. An organism that is found in the freshwater …show more content…
For example, if a Trichoptera were found in a lake that would indicate that the lake is currently experiencing high dissolved –oxygen, but if a macroinvertebrate such as Diptera was found in a lake than that would indicate that the water is experiencing low dissolved oxygen and another way to indicate that the water quality is low is through the water turbidity. Methods: Wednesday, March 7, 2018, at approximately 2:30-3:00, on a chilly sunny day, students at the University of West Florida, ecology class section #10351 took a walk down University of West Florida campus to collect macroinvertebrates to determine the water quality of the university lake. In order for the students to collect macroinvertebrates from the lake, several steps had to be taken. Step one: a few students received nets to capture animals, plants, and macroinvertebrates from the lake. Step two: Students placed their samples from the lake into four separate pans, which would later be carried to the lab to be analyzed. Step three: Before leaving the field there was about 16 round finfish that was captured and released back into the lake. Step four: In the lab, each student was placed in four different subgroups and given a pan full of samples from the lake. In each subgroup, students
Carefully describe what the p-value tells you about the difference between the means. - The average number of phytoplankton per mL of water is 13 phytoplankton/mL of water, and the average of zooplankton is 41 zooplankton/mL of water. The 2SE for phytoplankton is 11, for zooplankton it is 21. The p-value for this data is 0.0255; because this p-value is less than 0.05 one can conclude that the difference in averages (i.e. zooplankton being higher than average of phytoplankton) is statistically significantly different. In other words, the greater average number of zooplankton per mL is very unlikely to be due to chance variation and likely due to some outside
And the smallest zooplankton (called micro‐zooplankton), fell by about 90 percent.” Finally, dissolved oxygen in the river dropped by 15
We found a little number of Phosphates and Nitrates in the water. That is healthy because these two chemicals are in fertilizers and detergents, they can harm the creek and all the creatures living in the creek. They get into the water through the eutrophication process. Bacteria eat phosphates and nitrates so that means there is a little number of bacteria in this creek. The dissolved oxygen level of the creek is high which is healthy.
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
Anth. 105 Human Species – Lab 3 Report Sirin Gul November 11, 2017 Introduction In Lab 3, we examined the relationships between diet quality, tooth shape and daily travel distance. Evolution has changed how humans and other primates live and survived according to their environment. They are relatively related/similar to each other when it comes to fossil hominins, humans and other primates.
The Honors Earth Science classes went to the Susquehanna River to solve a problem. The problem was not knowing if the is healthy. The classes want to know if the river is healthy, because the students live near the river, and it affects the classes everyday lives. To answer the problem, the classes did a series of tests, and made physical observations at various islands in the river. The students used test kits and other tools to test pH, temperature, phosphate, nitrate, turbidity, and dissolved oxygen.
My 8th grade class went to the Conodoguinet creek to test if there was any pollution in the creek water. Before we went my hypothesis was, “If we go to the Conodoguinet creek and test the water, then the creek will have little to any pollution in it because we haven’t had a monstrous storm in the past few months so there wouldn’t be an excessive amount of acid rainfall or runoff” There are three types of macroinvertebrates ( an invertebrate fauna - animal of a particular region - that can be captured by a soo - which is a certain net or sieve - ) that we were looking for, Group 1 ( which is pollution sensitive - they cannot have any pollution- ), Group 2 ( which is somewhat pollution tolerant - they can live with some pollution-) and Group
a. Water boils to produce steam at 100 C (212 F) b. Water produces gas with sodium metal c. Water and oil separate when combined d. Water dissolves sugar 22. In the experiment, students put brine shrimp in water with different concentration of salt and counted the number. Which of the following changes to the experiment will increase confidence in the validity of the result? a. Count the number of dead brine shrimp instead of living brine shrimp b. Add more brine shrimp to the water with the highest salt concentration c.
Abstract The purpose of this lab was to determine the overall health of the aquatic community at Lake Wheeler. Various water and sediments samples were taken to be tested and observed in a number ways to reach a conclusion about this lake’s condition and fitness. The dissolved oxygen content, pH level, water temperature, and water clarity were also tested with the use of several different tools, ranging from a Secchi disk to pH strips and more complex contraptions like the Schindler-Patalas trap.
Biodiversity is the variety of life in the world. Biodiversity is important everywhere because it is a resource in which all living organisms and future generation organisms depend on. It is important to California because California has many different bioregions. If California did not have biodiversity in its bioregions, one animal would have to adapt to all the different regions. By adapting, it would have to live off the land and eat its own species.
In the first experiment, one hundred and fifty college students from the University of Washington were the subjects. The students were placed in to various sized groups. All the students were shown a short film of a multi-car
Stanley Milgram wants to know how people would go in obeying an instruction. For his experiment he stand a procedure it is different from others. His experiment taken at human beings. 40 males aged between 20 and 50 were selected for the experiment, These 40 males were professionals who is unskilled. There is a teacher and learner in his experiment.
On the trip with SWEEP the health of the Susquehanna River was studied. In order to do that, chemical test, biological tests, and physical observations were made. Chemical testing showed the more scientific side of water quality, such as the amount of nitrates, phosphates, the pH values, temperature, dissolved oxygen, and turbidity. Searching for macroinvertebrates was the biological testing. Certain macroinvertebrates and the quantity found determines how healthy the stream is.
Introduction Predation is a biological interaction between two organisms of different species in a community in which one acts as a predator and captures and feeds on the other, the prey. Predator-prey relationships keep animal populations in balance. When prey populations increase more food is available for predators, and they increase in number as well. An increase in predators triggers a decrease in prey populations. As prey populations decrease predator populations soon follow as their food supply diminishes.