Oxygen is measured in 2's and with less fish there is more oxygen. 2. Do background research – Utilizing at least one scholarly source, describe how variations in dissolved oxygen content in a body of water can affect fish populations. Answer = According to a study conducted in a Florida spring by authors Mckinsey & Chapman, "It is likely that the pattern of variation in dissolved oxygen interacts with the respiratory abilities of the fishes to affect the distribution pattern and community composition along the gradient". (Mckinsey, D. & Chapman, L., 1998, pg.
QUESTIONS 1. Make an observation – Based on the data in Table 4, discuss what patterns you observe in regards to dissolved oxygen content and fish populations in the body of water? Answer = By my observation the pattern goes by minus 1 twice, then minus 2 twice, then plus 3 twice, then minus 4 twice, then minus 5, so the pattern is 1,2,3,4,5, and so on. 2. Do background research – Utilizing at least one scholarly source, describe how the dissolved oxygen content in a body of water can effect fish populations.
As the ppm of dissolved oxygen increased so did the amount of fish there were in the water. Clearly, the fish prefer to be in water that has more ppm of dissolved oxygen. 2. Do background research – Utilizing at least one scholarly source, describe how variations in dissolved oxygen content in a body of water can affect fish populations. Answer = Based on research done by Elshout, Pires, Leuven, Bonga, and Hendriks, lower Dissolved Oxygen levels have a major impact on the fish population and reproduction.
Dissolved oxygen levels can also cause fish to suffocate and be more susceptible to diseases. Construct a hypothesis – Based on your observation in Question 1 and your background research in Question 2, develop a hypothesis statement that addresses the relationship between dissolved oxygen in the water sample and the number of fish observed in the body of water. Answer = If the dissolved oxygen level is high in a body of water, there will be a low number of fish. The higher the dissolved oxygen level the higher the death rate of the current fish. 3.
The Goldfish Experiment Abstract: The purpose of this experiment was to determine the effect of different water temperatures on the respiration rate of goldfish. According to the data obtained, the breathing rate of the goldfish increased as the water temperature increased, and diminished as the water temperature dropped. Using the data from all the groups, the average oral movements from the control goldfish ranged from 74 breaths per minute to 55 breaths per minute as time progressed, while the average oral movements of the experimental goldfish ranged from 141 breaths per minute to 49 breaths per minute as the temperature changed. Introduction: The objective of this experiment was to identify the effect of different water temperatures on the respiration rate of goldfish. Goldfish obtain oxygen from the water, and the process starts with water flowing into the mouth, over the filaments in the gills, which are located on the sides of the head, and out through the operculum, which is a flap located on each gill chamber.
You should submit your document as a Word (.doc or .docx) or Rich Text Format (.rtf) file for best compatibility. Exercise 1: Data Interpretation Dissolved oxygen is oxygen that is trapped in a fluid, such as water. Since many living organism requires oxygen to survive, it is a necessary component of water systems such as streams, lakes and rivers in order to support aquatic life. The dissolved oxygen is measured in units of ppm (parts per million). Examine the data in Table 4 showing the amount of dissolved oxygen present and the number of fish observed in the body of water the sample was taken from; finally, answer the questions below.
The Effect of Water Temperature on the Breathing Rate of Goldfish Introduction The scientific method of problem solving is a method that scientist use to predict and provide evidence to back up a certain experiment. The scientific method of problem solving consists of a series of steps that must be completed. The first step is to recognize the problem, observe the thing the experiment will be conducted on, and gather data. The second step is to form a hypothesis,which is a educated guess, which is formed after the gathering of data from the observation. The third step is to test your hypothesis by experimenting and recording data to determine if the hypothesis solves the problem or not.
Analysis of an Aquatic Community and its Inhabitants Abstract In this lab, we are trying to analyze the overall health, and ecology of the aquatic community at Lake Raleigh. Various sediments samples were taken at different depths to be tested and observed in order to identify the species inhabiting the lake. Other tests were preformed to further analyze the lake, such as the pH level, Sechhi depth, and compensation depth of the lake. The water temperature, dissolved oxygen content and water clarity were also tested at different depths of the lake. Overall, the results indicate that Lake Raleigh is a healthy and thriving aquatic community.
Prediction In this experiment, when allowing two crayfish to display agonistic behavior, it is predicted that the larger and stronger of the two crayfish will be the one to establish dominance. Introduction This experiment tested for the presence of agonistic behavior in crayfish. Agonistic behavior is any social behavior related to fighting. The term “agonistic behavior” refers to a broader spectrum of behaviors than just aggressive behavior. Agonistic behavior includes threats, displays, retreats, aggressors, and conciliation (Barrows, 2001).