stream due to several key biological factors: Defense: Due to the lack of any inherent defense mechanisms, the species relies on its camouflage as its sole mechanism for defense. Naturally, high amounts of vegetation present in an area provide an aid to the protection of the freshwater shrimp from its predators and allow a greater chance of the survival of the species. Oxygen content: The oxygen within water is derived primarily from submerged plants present within the water. As these plants photosynthesize, Oxygen is released as a byproduct and dissolves into the surrounding water. This increased oxygen content would attract freshwater shrimp to an area, as they are reliant on the surrounding water for the oxygen that is necessary for them to respire aerobically. …show more content…
If nitrate and phospahte level is present in an area an increased amount of detritus will also be present due to the death and decay of the submerged plants. This provides an ideal food source for the Gammurus pulex and increases the chances of survival and reproduction. As a result you would expect to see an increase in the abundance of the species in polluted stream. Independent variable The independent variable within the experiment was the presence of pollution content such as pH, dissolved oxygen, nitrate and phosphate level. This was varied by locating two areas, one with + %(have to include 5) polluted water stream beside road and another without notified pollution which is church stream. Dependent variable The dependent variable within the experiment was the relative abundance of the species within the two separate areas per sample. This was measured through obtaining a sample and counting the number of Gammarus pulex present per
Thyroid and metabolism hormones play a large role in the daily lives of all living species. Thyroid hormones regulate the metabolism and the metabolism is responsible for maintaining a specific range for the biochemical reactions that occur in the body (Martini 2014). The most important hormone for metabolic maintenance is thyroxine (T4). This hormone also plays a large role in body heat regulation. It is produced by the pituitary gland and secreted by the thyroid gland. The thyroid releasing hormone (TRH) must trigger the thyroid stimulating hormones (TSH) to release thyroid hormones to the thyroid gland. These hormones are under control of the hypothalamus, or main neural control center. Propylthiouracil (PTU) is a medication used to treat
They also look after the quality of coastal waters by watering down, sifting, and settling deposits, left-over nutrients and contaminants. They are highly productive ecosystems and provide habitats and act as nurseries for all manner of life.
During this experiment Brine Shrimp were placed in four bowls. These four bowls contained 2 cups of either water, vinegar or a water and vinegar solution with 50 shrimp in each. Over a course of 3 hours all of the shrimp in the vinegar mixtures died. Beginning this experiment, the control group, placed in two cups of water moved around the bowl actively. This differentiated from the groups placed in vinegar solutions. These shrimp were placed in one of three bowls. In group 2 the tank consisted of one and a half cups water and a half cup vinegar. The third bowl contained one cup water and one cup vinegar. Lastly, the fourth bowl included two cups of vinegar. The shrimp in the control group were the most active. The shrimp in these bowls moved
The North American brine shrimp goes through several stages in development before reaching adulthood. The brine shrimp is first encased in a protective capsule within a female brine shrimp’s brood sac (Drewes, C, 2006). Here, egg development rapidly...
Guillermo Aragon English 121 Leslie McCutchen October 09, 2015 In the Deep End Since the beginning of filmmaking producers have made documentaries to present an argument, an idea, or to portray a kind of reality. In an attempt to introduce an argument of some kind, the filmmaker’s intent is to engage the audiences and to also appeal to their values and emotions. To do this, producers use a number of rhetorical deceives, such as logo, ethos, and pathos, to help get their audience to believe and think in a certain way. Gabriela Cowperthwaite, director of the 2013 documentary Blackfish, uses these rhetorical techniques throughout the film, which tells the story about Tilikum, an orca whale that killed three professional trainers while in captivity.
The movie that shocked thousands of Americans with the secrets of SeaWorld became one of the most talked about movies of its century. Blackfish came out in July of 2013 with shocking evidence of the mistreatment of Orcas, also known as killer whales, and the dangers imposed on the whale trainers. The movie had several strategies to appeal to its audience. These strategies included the three pillars of writing; logos, ethos, and pathos. Although the overall theme of Blackfish was to inform the viewers of the treatment Seaworld imposes on Orcas, the fundamentals of the movie actively used the three pillars; ethos, logos, and pathos to effectively catch the attention of the viewers and keep them drawn into the movie; the most prominent pillar was pathos followed
Out of these variables I will use concentration as my input variable and amount of carbon dioxide released as my outcome variable. You can see how I will use and measure these variables in the method section of this investigation. My preliminary results can be found in appendix 1. These show what measurements of the input variables I decided to use and why I decided this.
Cleaner fish and cleaner shrimp fill the same ecological niche. Cleaner fish and cleaner shrimp fill the same ecological niche. Cleaner fish and cleaner shrimp fill the same ecological niche (OpenStax College, 2013).
Brine shrimp are tiny crustaceans that populate numerous bodies of salty water all around the globe. Brine shrimp are adapted endure varying levels of salinity but their ideal salt environment is more than twice as salty as the ocean. The life of a brine shrimp begins when it is born a free swimming larvae, known as nauplii, or hatches from an egg. A brine shrimp will reach adulthood somewhere between one and six weeks, depending on the factors of its environment. Conditions such as a warm water temperature and high oxygen levels are optimal for development. Several times throughout its maturation, a brine shrimp will shed its exoskeleton and grow a new, larger one. The average adult is just around eight millimeters in length but sizes of brine
Working with upscale specialty restaurants would be the best strategy for Planet Shrimp at its current level of production. Again, since Planet Shrimp is a new and growing company, its primary goal is working towards its strategic vision, so the alignment with strategic vision is rated the most highly. Restaurants with existing passion for sustainability and local fare is strongly aligned with Planet Shrimp’s strategic vision and will leverage the brand reputation. It will be the most feasible and cost-effective strategy because there are fewer locations. There are already several restaurants in Toronto that are interested in sourcing shrimp locally and sustainably (Appendix E) Planet Shrimp should supply these restaurants especially
The Artemia franciscana can survive in extreme conditions of salinity, water depth, and temperature (Biology 108 laboratory manual, 2010), but do A. franciscana prefer these conditions or do they simply cope with their surroundings? This experiment explored the extent of the A. franciscanas preference towards three major stimuli: light, temperature, and acidity. A. franciscana are able to endure extreme temperature ranges from 6 ̊ C to 40 ̊ C, however since their optimal temperature for breeding is about room temperature it can be inferred that the A. franciscana will prefer this over other temperatures (Al Dhaheri and Drew, 2003). This is much the same in regards to acidity as Artemia franciscana, in general thrive in saline lakes, can survive pH ranges between 7 and 10 with 8 being ideal for cysts(eggs) to hatch (Al Dhaheri and Drew, 2003). Based on this fact alone the tested A. franciscana should show preference to higher pH levels. In nature A. franciscana feed by scraping food, such as algae, of rocks and can be classified as a bottom feeder; with this said, A. franciscana are usually located in shallow waters. In respect to the preference of light intensity, A. franciscana can be hypothesized to respond to light erratically (Fox, 2001; Al Dhaheri and Drew, 2003). Using these predictions, and the results of the experimentation on the A. franciscana and stimuli, we will be able to determine their preference towards light, temperature, and pH.
However, a hypothesis cannot function without its independent and dependent variables. They are both parts of an experiment that are in place to be measured and experimented with. Many variables exist, fo...
The experiment measured the survival rate, the growth rate, and the size of the brine shrimp at the time harvested in various environments. To obtain these measurements, three environments were created: sea water, brackish water, and freshwater. For this experiment the scientists used 5 liter plastic buckets. Every two days, half of the water from each bucket was discarded and new water, of each respective salinity, was added into each bucket...
Eutrophication comes from the Greek word "eutrophos" meaning well-nourished. In other words, this natural process found in water occurs as a result of additional rich nutrients forming a flourish in plant production.
Arthropods are in the kingdom Animalia which is in the subphylum Arthropoda. A species can be classified as an Arthropod if they have an exoskeleton, a coelom, and if they are mostly dioecious. An “ exoskeleton is an external skeleton made of chitin. [A] coelom is fluid filled cavity between organs and body wall” (Babin,2017). Examples of Arthropods are: spiders, ticks, millipedes, and centipedes. The objective of this experiment was to find Arthropods and test. Different habitats were established to see which will produce a greater amount of Arthropod. It was believed that the Arthropod diversity of a shaded area will be more that that of an area near a canal. The shaded area would have more arthropod diversity because more plants would be around it. Since there will be leaves and trees, plant diversity will be greater. Also, having “ plant diversity can positively affect arthropod{s}” ( Bennett and Gratton, 2013) because there will be more arthropods to utilize.