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.
April 12, 2013 Lab Report: Effects of temperature on oxygen consumption Introduction: In all animals, the acquisition of oxygen and elimination of carbon dioxide are required for survival. Oxygen is taken from the environment of the animals by diffusion from the air or water. Animals such as a fish that live in the water only have the oxygen that is dissolved in the water. A fish, exchanges gases across the secondary lamellae of their gills. Water flows over the gills and is continuously pumped by the mouth.
To get the best results possible, the procedure will be analyzed with three samples. The experiment was carried out with a computer based simulation. We took samples of water from the lake to test the levels of iron, lead, calcium, and mercury. The results of the analysis of the metals are represented in table 1. Table 1.
The pH test was used determine the overall acidity of the water, which is indicative of what organisms can and cannot survive in the water. Testing Secchi depth shows the depth at which visible light can no longer be seen from the surface, and the compensation depth is the depth at which only 1% of surface light penetrates the water column (McNeil, 2014). In order to gather information on what organisms are present in the lake, sediment samples were taken from different zones and analyzed under compound and dissecting microscopes. Methods During this lab our goals were to find the average acidity of the surface water, the average compensation depth, dissolved oxygen and temperature with depth, collect plankton samples, and collect sediment samples. The first test was to find the dissolved oxygen content and water temperature at various depths of the lake.
Fish Adaptation and Physiology Kim Rosnik SCI/230 10/21/12 Kelley Gaske Fish Adaptation and Physiology In our modern day world, we have many organisms that live in two main areas. The first main area is on land, and the second is in water. The organisms that live in water are very different then the ones that live on land. Even though land and water animals need the same necessities to survive, they have adapted in different ways. This paper is intended to describe the physiology of fish and how they have evolved in their environment of water.
Materials In the Materials section of your Lab Report, list the materials (everything) necessary to get this lab done. C. Procedure The Procedure section of your Lab Report lists instructions or directions needed to accomplish the lab. They are already listed on the paper and do not need to be repeated. D. Data In the Data section of your Lab Report, you will be recording “just the facts” you’ve observed in your experiment. Data may include tabulated numbers, graphs, and short explanations of observations.
How does the Amount of Dissolved Oxygen Affect the Number Of Macro-organisms in Biosphere 3? Background Information: Dissolved oxygen (DO) is a relative measure of the amount of oxygen dissolved or carried in a given medium. While air is essential for all human beings to breathe, aquatic organisms such as fish, plants, and aerobic bacteria all need dissolved oxygen to respire. Adequate dissolved oxygen is necessary for good water quality. Natural stream purification processes require adequate oxygen levels in order to provide for aerobic life forms.
In contrast, minerals might be absorbed not only from diet but also from the ambient water in developed fish. Fatty acids are one of the most important nutrients for most finfish species, and supplementation of dietary fatty acids improves survival and growth for marine fish larvae. Copper is one of the essential trace minerals, which plays an important roles within the activity of enzymes as well as within the metabolism; however, copper deficiency in the diet and ambient water reduce the growth rate of the fry considerably. There were two experiments tested and for which material and methods were such as wild adult pair of anemonefish, water temperature, and tanks. Experiment one was based on the effect of the copper on survival and growth of the fish which were examined under the semistatic condition with six different copper concentration.
Water is importance to every day use because without water there would be no life on earth. 2) Illustrate “hydrologic or the water cycle? Briefly describe the role of evaporation, condensation, precipitation and transpiration in the hydrologic cycle. The objective is to understand how water moves slowly from the oceans, through the atmosphere, onto land, and then back to the ocean. * The water cycle consists of several stages.
Experiment 14 Jared Harbaugh Randall Jones Lab section 14 9/30/14 Introduction The Clark Fork of the Columbia River may or may not be contaminated with dangerous metal ions. To test this, The water from the river will be compared to solutions with known metal ions. The two main testing methods for finding ions will be emission and absorption spectroscopy. The presence and, in some cases, amount of the ions in the water will determine whether or not the water is safe for fish. Water safety is a very important thing to know.