Fish Kill Lab Report

This lab was conducted with the purpose of confirming the trait of homeostasis among goldfish. During the experiment, it was recorded that the fish would increase gill movement when placed in colder water two out of the three trials. However, the results showed no significant difference in gill movement in various temperatures of water. This has very little effect on the broad field of science since our only three trials were performed and may have included human error in the trials.

The mole is a convenient unit for analyzing chemical reactions. Avogadro’s number is equal to the mole. The mass of a mole of any compound or element is the mass in grams that corresponds to the molecular formula, also known as the atomic mass. In this experiment, you will observe the reaction of iron nails with a solution of copper (II) chloride and determine the number of moles involved in the reaction. You will determine the number of moles of copper produced in the reaction of iron and copper (II) chloride, determine the number of moles of iron used up in the reaction of iron and copper (II) chloride, determine the ratio of moles of iron to moles of copper, and determine the number of atoms and formula units involved in

At the conclusion of the experiment, the two hypotheses were reviewed. Because the water temperature did affect the normal respiration patterns of the goldfish, the null hypothesis was disregarded and the alternative hypothesis was accepted. From the results of this experiment, it was concluded that although other environmental factors could play

The objective of the lab was to analyze the formation of pelvic structures from two populations of stickleback fish collected from two different lakes. This was done in order to formulate a question based on observable phenotypic differences in twenty specimens from two different lake populations. Careful measurements were taken including the lateral plate, pelvic girdle expression, and body depth sizes. The purpose of the research was to formulate a question and develop a hypothesis based on the variations observed between several selections of populations, in order to gain a better understanding of evolution and natural selection. The data collected was used along with information about the lakes to suggest possible environmental factors

The procedure for this experiment followed the steps as shown in the flow chart (Figure 1) and will be expanded upon here. The oxygen-measuring probe in the test chamber was first turned on and required 10 minutes to warm up. During this time, two empty containers had 200mL of fish water added to them and then each was weighed using a scale that was tared to zero before use. Two pairs of goldfish were then collected from the large tank #1 in the lab room using the fish net provided, and one pair was placed in each container. Then, the containers were reweighed separately and the original weights were subtracted from the new weights in order to determine each pair of goldfish’s weight. Two trials were conducted and in each trial, each goldfish pair was subjected to two conditions, first a control condition where no factors were introduced, followed by an experimental condition where they were exposed

An association between enzyme production, gene copy number, and gene evolution was explored by conducting analysis of the salivary amylase enzyme, AMY1A gene copy number, and the ancestral starch consumption in Homo Sapiens (Tracey 2017, p.22). It was hypothesized that the relative amount of starch consumption was very high for my personal ancestral diet, thus my AMY1 diploid gene copy number in my genome and salivary amylase concentration would be significantly higher than the population mean. With a population of 28 subjects (n=28), individual saliva samples were collected and compared to a calibration curve to determine the approximate amylase concentration by analyzing absorbance values. Individual samples of buccal cheek cells were

This analysis of case studies from Los Alamos National Laboratory, and the case study to predict the effects of pesticides on aquatic systems and the waterfowl that uses them. Comparing the two processes of these case studies, along with analysis of the assessments. Describing the case study on the effects of pesticides in aquatic ecosystem, the risk assessment correlated to observed field studies and evaluate the importance of this type of correlation in general for all risk assessment efforts. Breaking down the ecological and social

While the Animas disaster avoided immediate and catastrophic results, the ultimate ecological price tag will take longer to figure. The river moves so fast that it swept obvious toxins downstream quickly. Yet the long-term toxicity reached hundreds and, in some cases, thousands of times over what is considered safe for the life beneath the river’s surface. That price will be silently calculated over months and years—by the trout.

In this project, C. Elegans are hermaphrodite worms that will be used since they are easy to maintain in lab, as well as have short life cycles. The gene that the project attempted to knockdown in C. Elegans with RNAi treatment is the unc-22 gene. RNAi disrupts gene expression in the presence of double stranded RNA (dsRNA) that is complementary to target gene sequence. The unc-22 gene codes for a muscle protein called twitchin in wild-type worms. The Unc-22 is required for muscle regulation and maintenance in C.Elegans. To verify that the RNAi treatment worked, would check the unc-22 mRNA levels in the worms, in addition to phenotype observation.

Crayfish are crustaceans that are a part of the phylum arthropoda. Similar to the lobster, an organism within the same phylum, crayfish breathe via feathered gills. It is the use of these gills that allows oxygen uptake and thus the ability to survive in freshwater environments.

The first time I felt the recoil of a shotgun coincide with the simultaneous drop and flop of a turkey I knew I was hooked. This was all the way back in the fall of 2005 when I shot my very first turkey alongside my father. That day started an addiction that has since intensified and spread to not only turkeys but almost all of Missouri's highly sought after species. Hunting, conservation, and the great outdoors have always been embedded in the hearts of my family. I am no different and plan to dedicate my life to Missouri’s wildlife the same way they have.

Purpose: The purpose of this lab is to identify the element that is causing the fish in the Halibut tank to die, by testing each variable between both of the identical tanks.

The salt marsh is an ecosystem that has many different organisms and species dwelling upon the surface. Of these organisms, they include sea lettuce, the Sheepshead Minnow, Fluke and the Great Blue Heron. These organisms interact with each other in the ecosystem. The sea lettuce is a producer, which gets eaten by the consumer, the minnows. Then, minnow is eaten by a secondary consumer, a fluke. Lastly, the Great blue Heron, as a top predator and tertiary consumer, eats the fluke. Through this process, toxins are transferred from trophic level to trophic level. An example of this is the BP oil spill, which released a large amount of toxins to the ocean, and animals can take in the toxins, causing large amounts of deaths. Each organism has a lethal threshold, or the amount of toxins an organism can have before death. The Great Blue Heron in this case has a lethal threshold of 44 toxins (EduChange, 2004). A lab has been done to model the biological magnification of toxins in an ecosystem with the Great Blue Heron. If a Great Blue Heron eats for five weeks, then the animal will die because the lethal threshold of 44 toxins has been passed and the toxins cannot be

7. A human heart is a muscular organ and its job is to pump not only de-oxygentaed blood to the lungs but also pump oxygenated blood to the body. The blood that is de-oxygenated within a human first arrives to the heart through the Inferior or Superior Vena Cava to the right Atrium of the heart. Then as the Right Ventricle relaxes, the blood gets pumped into the right Ventricle which will then contract forcing the blood out into the Pulmonary arteries that will take the de-oxygenated blood to the lungs.

Team Savior completed an outstanding presentation at Thesis Conference. Their team name, Savoir, stands for snakehead analysis via investigation and organic reaction. The team addressed two main research problems: is the snakehead a threat to the Potomac River ecosystem and what are the management applications to their findings? The first question was further divided into determining the recreational anglers perceptions of the snakehead in the Potomac River and the finding the potential for expansion of the fish’s population.