Algae Implementation Lab

The purpose of this particular lab was to experiment and identify the chemical and physical changes throughout the experiment.

The dissolved oxygen levels are much higher in this experiment than in the previous experiment.

Having dissolved oxygen gives water the ability to inhabit aquatic animals. The water temperature also affects the amount of dissolved oxygen in water. Since there was 7.5 liters of water was in each container a lower wattage bulb did not heat up the water like a 100 watt bulb would have. This being said the water temperature after 14 days in each trial was consistently between 21 and 22 degrees celsius. The water temperature could have had an effect on how much dissolved oxygen was produced. The minimum amount of dissolved oxygen for aquatic life is 4 to 5 ppm. On the other hand a healthy stream should have a dissolved oxygen level of around 8. When algae goes through photosynthesis it produces an abundant amount of dissolved oxygen, if the experiment were to be extended to the point of growing algae in the tanks the dissolved oxygen levels would have went much higher than 8. The plants produced enough dissolved oxygen to support life of animals. Algae is present in streams so unless pollution plays a role in reducing the amount of dissolved oxygen usually aquatic life has enough oxygen to live

The information from the experiment could be useful in fields that study things based on light. Fields like in astronomy see that the light that they receive might be distorted a lot based on the temperatures of liquids in spaces. This could be useful because stuff like asteroids could have liquids that might reflect some light making it hard to detect. Also, light coming from other plants as the planet can distort light a lot due to atmosphere containing different temperatures. Though this experiment only tested light refraction from liquids there could be another experiment that could test if this priority of light could be used on other mediums like air. This could be helpful in the matter of refraction on other planets.

In healthy lakes and streams, nutrients are needed for the growth of alar that forms the base of a complex food web supporting the entire aquatic ecosystem (Lindberg 2012). Based off of this background information, a second experiment was conducted to study the community ecology within the LSU University Lake. This experiment arose interest in observing the amount of ammonia (abiotic factor) in the lake water and its effect on the concentration of chlorophyll (biotic factor). The data retrieved in this experiment lead to the question, if there is an increase in the amount of ammonia in the LSU University Lake, would that result in an increase of chlorophyll concentration due to an increase in nutrient availability? The null hypothesis states that in an aquatic ecosystem, the different levels of ammonia will have no effect on the concentration of chlorophyll present in the University Lake. Inversely, the alternative hypothesis states that in an aquatic ecosystem, the different levels of ammonia will have an effect on the concentration of chlorophyll present in the University

In this experiment the students used different test kits to determine the ppm (parts per million) of phosphates, nitrates, and dissolved oxygen. Phosphates and nitrates are salts or ester of phosphoric or nitric acid, containing anions and are examples of polyatomic ions. They can be found in fertilizers, sewage treatment and some detergents. When rain dissolves these materials, they can make their way into the creeks and rivers. When the surface waters are rich with these materials, they can cause algae to grow. Algae then competes with other organisms for light and other nutrients. This has been a major contributor to the massive loss of life in the Chesapeake Bay waters. Dissolved oxygen refers to the level of free non-compound oxygen present in liquids. The higher level of dissolved oxygen the healthier the water. To do this experiment the students needed to get a 25 mL sample of creek water and add a certain chemical to it to make the water change color. The shade of the color determines the number of ppm. The students found around 10 dissolved oxygen ppm and little to none phosphates and nitrates. These results show that the water is healthy because the lower the number of phosphates and nitrates, and the higher the dissolved oxygen, the healthier the

We believed that NaOH would increase the pH of the solution and therefore decrease photosynthetic activity, however, only one of the two occurred. The pH did increase, but instead of inhibiting photosynthesis, it allowed it to produce more oxygen than that of the solution without NaOH for the first 180 seconds. Evidence of this can be observed in Fig. 1 as well as in Fig. 2, which compare the dissolved oxygen of solutions over time. Additionally, while the solution with NaOH decreases its dissolved oxygen from 270 seconds to 360 seconds, the amount of oxygen dissolved after that is fairly constant. This does not mean we have inhibited photosynthesis, but that our algae may died after being introduced to higher pH values as time

I open the double doors, put on my lab coat, and goggles, holding my notebook between my knees. Heading over to my lab bench, I slip on some nitrile gloves and begin labeling tubes. Holding my tubes, I open the door into the growth room, where I take eight flasks off the shaker box. I look inside the flasks; they look dark green and dense. They are growing well. Thus begins my day at an algal biofuel lab. As an intern at Los Alamos National Laboratory in New Mexico, I head over to the lab after school. Specifically, as a member of a project working to facilitate the transition from petroleum-based fuels to algal biofuels, I mainly focus on adapting algae to a wide range of salt concentrations for our industrial partner, a petroleum company,

The purpose of this lab was to exploit water’s many different properties through different experiments. Through the experiments, it was obvious what certain properties were trying to be showcased. The concept of the lab was to discover properties of water playing a role in [somewhat] real life events. Through the predetermined labs, it was possible to test and prove the properties.

In this experiment, we were trying to find out if adding salt to AlgaGro and a ankistrodesmus algae solution would impede the growth of the algae. We performed this experiment and we found that our hypothesis was wrong. As the experiment went on, the algae in the tubes with the highest amount of salt showed the most amount of algae growth. This was evident by the increased amount of light absorption shown by the spectrophotometer readings. In the introduction, I presented the findings of two experiments performed previously

If we look at the figures above we could see that the experiment phosphorus of green algae, cyanobacteria and diatoms, when the phosphorus was doubled had higher values than the baseline when nutrient input was the same. When we look at the growth rate of green algae (Figure 1), the baseline phosphorus and the experiment phosphorus did not differ much, same with the baseline phosphorus and experiment phosphorus for the carrying capacity of diatoms (Figure 6).

The word “aquation” used in the title of the experiment represents how one or more molecules of water are incorporated into another division. This could occur with or without one or more atoms added into the group.4 This process takes place in this experiment where 1,10-phenanthroline is considered as the other division. Water molecules are incorporated into1,10-phenanthroline.

Now the algae has come back to haunt us. 250,000 Football Fields of Green Algae Now Cover Lake Erie. ( Nat Geo) “The lake experiences algal blooms every summer.” (Cleveland Plains) The lake has gotten taken over by a large quantity of blue green algae. The algae can be toxic to humans and cause problems with our bodies. This means that people have to use bottled water to drink, bathe, and cook with. This affects communities because they may have to move until the problem gets cleaned up. It also means that they will have to go to the store to buy clean usable water and can’t use their own. The final effect on communities is the fact that they may have to send their kids to a different area because kids have weaker immune systems, and the algae

While algae decreases the appeal, function, and value of your home, roofing contractors in Frisco TX are helpful in preventing and removing this unappealing growth on your roof. Unfortunately, you may not be familiar with this dark green or black growth on your home’s exterior surfaces. Using this guide, you will understand how black algae develops on your roof and learn the best options for removing this unappealing growth.

Chlorophyll a averaged 0.71µg/cm2 across all sites and sample periods and ranged from 0.03 to 3.42µg/cm2. Before the disturbance, Chl a at the SFD sites was lower at Dry Hollow (mean ±1SE; 0.21 ± 0.08 µg/cm2) than at Sis Hollow (1.11 ± 0.37 µg/cm2). Chl a values were similar between the IFD sites [Point Remove and High Cedar (0.51 ± 0.26 µg/cm2 and 0.69 ± 0.37 respectively)]. They were higher at the LFD site, Powerline, than at Low Cedar (1.84 ± 0.55 and 1.04 ± 0.33 µg/cm2 respectively). There were no differences between control and impacted sites prior to the disturbance (Table 4). There were no statistically significant 2-way rmANOVA interaction terms between the BA and CI factors for any of the flow duration parings