Nutrient Comparison

2) [6.2] In Microsoft Excel (I’ve provided an Excel spreadsheet, but you are welcome to use the spreadsheet application of your choice: Google Sheets, OpenOffice, etc.) plot a line graph of your green algae population size data to show how green algae relate to phosphorus input levels. Think about which is the dependent and which is the independent variable. Be sure to label your axes. Copy your completed graph into the

Month The diagram shows the relationship between the biomass of the phytoplankton and the biomass of the zooplankton for one of the months during this investigation.

Competition determines survival of the fittest. The larger plankton eat larger particles, therefore making themselves thrive, and the smaller planktonic herbivores were extinguished from the specific lake ecosystem. When the plankton are being heavily hunted, the smaller thrive. The small plankton tend to succeed in the general plankton population because they are effective when collecting their food, and they have lower metabolic rates, requiring them to eat less. An equation was devised to represent this scenario. “The food collecting surfaces are proportional to the square of some characteristic linear dimension, such as body length, in Crystal Lake, for example, the body length of Daphnia catawba is about four times that of Bosmina longirostris, so that the filtering area of the Daphnia is about 16 times larger than that of the

The use of too much fertilizers, and in particular, of fertilizers with high concentrations of nitrogen, has been linked to reduced biodiversity (Xiankai et al. 2010). It becomes necessary to consider the detrimental effects of high concentrations of fertilizer in the reduced spaces. Fertilizers are salts, and therefore high concentrations of fertilizers can deplete the plant from water.

A plant's growth ability is dependent on its ability to acquire the resources it needs to survive. Competition such as interspecific and intraspecific, limiting resources, and population density affect the fitness level of a plant. This experiment was conducted in order to test the capability of collards and radishes to grow in manipulated densities under interspecific and intraspecific competition. I hypothesized that both collard and radish plants will grow more efficiently in single species pots under low-density conditions. I also hypothesized that in the mixed species plots the radishes will be more fit to survive and grow better than the collard plants in both the high and low-density pots. Both high and low density and single and mixed species plots were planted and results were observed. There was a significant

In this next stage we’re doing the Eutrophication Test, which is a test that finds the phosphate, nitrate, and dissolved oxygen. After everybody did their test, we all gathered and compared our results. My group did the phosphate test and got 0 ppm, and the everybody got an average of phosphate of .l ppm. Then the average for nitrate was .9 ppm. Last the average we all calculated for dissolved oxygen was 9.8 ppm.

Water column phosphorus concentrations have also been shown to increase under anoxic conditions (Webb, K.L. and D'Elia, C.F. 1980). This is because some of the iron oxyhydroxides that

For an existing habitat, an increase in salt levels will begin to show an effect on the abundance and diversity in species of zooplankton. This will exhibit a detrimental effect on the daphnia from the limited osmoregulatory capabilities of the organisms. This in turn can pose a risk to the level feeding rates and survival (Heine-Fuster, Vega-Retter, Sabat & Ramos-Jiliberto,

Phosphate allows species, such as cattails, and algal blooms to grow that upset the balance of the everglades ecosystem. This contributes to dissolved oxygen concentrations that are lower, and causes a change to take place in food chains. Certain species like the cattail flourish with the higher

Daphnia are important because they are important to the food chain in these aquatic habitats; they feed on algae, algae is a producer- it converts sun energy into food, and larger animals, consumers or predators, such as small fish feed on Daphnia, thereby passing this energy to them. (Russell, 2013) Therefore, studying Daphnia is important in the understanding of not only the ecology and behaviour of Daphnia, but also other members of the same food web, its consumers, the fish. Daphnia increase in abundance in summer months,

The experiment took place in a laboratory setting, and the first step was obtaining sixty individual Daphnia magna (that were neither adults nor tiny offspring) from a large tank in the lab. These individuals were equally divided into three groups; low density, medium density, and high density. The twenty Daphnia assigned to the low density group were split into four groups of five and pipetted into one of four tubes filled with 10mL of Chlamydomonas algae. The twenty Daphnia assigned to the medium density group were split into two groups of ten and placed into one of two tubes also filled up to 10mL with Chlamydomonas. The final twenty Daphnia were all placed into a single tube filled with 10mL of the algae. In order to avoid suffocation-related

The purpose of this experiment is to understand the effects of nutrient enrichment and eutrophication, using samples of water from Rio Salado and Encanto Park. The samples will contain different concentration levels of nitrogen, phosphorous and nitrogen and phosphorous combined and the impact it has on algae growth. The results recorded showed that the nitrogen concentration levels had a little change, phosphorous levels had a higher change and phosphorous and nitrogen combined had a significantly higher change, resulting in higher algae growth. The results showed that phosphorous indeed is a limiting nutrient in algae growth, but to achieve the highest growth rate, both nitrogen and phosphorous need to be combined.

My $32 price target is derived from primarily a discounted cash flow analysis, but also confirmed with a relative comparison analysis. My price target implies a forward P/E of about 29.19x, which is slightly higher than the consensus estimate of 22.32. It also implies a forward EV/Revenues multiple of 1.6x, which is its historical multiple as well. The prospects for continued new customer growth and brand expansion (in addition to the recent acquisition of South Beach Diet) coupled with a debt-free balance sheet and improving free cash flow should allow for multiple expansions beyond the current consensus estimates.

Mushroom have been widely used as food and food supplements. It is an important food item concerning human health, nutrition and disease prevention. Dietary mushrooms provide a variety of medicinal properties and they are effective against certain life threatening diseases. Mushrooms are not true vegetables in the sense that it does not have any leaves therefore contain no chlorophyll, roots or seeds and really does not need any light to grow. It is a fungus which grows in dark and propagates by releasing spores. Mushrooms are found all over the world and have been a time honoured food in many cultures.

Secondary nutrients are also required for plant growth and consist of Sulfur, Calcium, and Magnesium. Though they are secondary they are still quite abundant in the soil and are utilized within the complex functions a plant needs to grow. Sulfur is important for its presence in vitamins and enzymes, calcium is essential to the structure of the cell wall, and magnesium is the main electron carrier in the photosynthetic reaction (Prasad & Power, 1997, p. 243). Micronutrients are those that are only found in trace amounts but are still quite important in many of the metabolic functions of the plant. The lack of some of these micronutrients are responsible for a variety of deficiencies a plant may encounter due to