Goldfish Safety Precautions

This lab was about how a goldfish’s breathing rate changes in different temperatures in order to maintain homeostasis.

Unit 1 ties into the theme of tolerance and the acceptance of others, as Barbara Jordan said it, “We, as human beings, must be willing to accept people who are different from ourselves”. Whether it was the short story What of This Goldfish, Would You Wish? Or the newspaper editorial The American Flag Stands For Tolerance, the pieces dive into and explore the issues of acceptance among others.

Background knowledge demands: For this book, students must know what fish and scales are. They will also need to know that fish live under the sea.

After the Daphnia was given time to calm down, the team took a reading of its heart rate at room temperature (27 degrees C). The reading was taken by counting the heart beats for ten seconds and then multiplying by six to yield beats per minute. Next, a glass Petri dish was filled with ice water at five degrees Celsius. The cold water Petri dish was placed on the stage of the microscope, and the Daphnia was placed on top of the dish. When the Daphnia had been given a minute to acclimate to the changes, another heart rate reading was taken. Then the same procedure using the Petri dish to changed environmental conditions was used with cold tap water (23 degrees), warm tap water (30 degrees), and hot tap water (45 degrees). A heart rate reading was taken for each temperature.

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

2. You have measured the rate at which a fish breaths at various temperatures by counting the rate at which its gills open. The data table is shown below. Create a line graph depicting the results.

13. Which of the following is not an expected response in a fish to a drop in water temperature?

Temperature had a direct effect on oxygen consumption of crayfish, Orconectes propinquus. Crayfish acclimated to warm temperature (20 to 25 C) had a mean mass of 8.25g +/- 1.05. Crayfish acclimated to cold temperature (3 to 5 C) had a mean mass of 10.61g +/- 0.77. Oxygen consumption rates of 30-60 minute treatments were used and there was no significant difference between the two different treatments (t=0.48, df=58, P=0.70). The data from 0-30 minutes were not used because the crayfish were disrupted by transportation and the data were not normally distributed. The Q10 value was 1.05, representing that there was full compensation for oxygen consumption for the crayfish at two different acclimated temperatures. The oxygen consumption of crayfish was not affected significantly by two different temperatures (Figure 1).

The water in the hot bag was approximately 65° Celsius. We allowed the shrimp to move about for 30 minutes because we had the time. Every 10 minutes we replaced the hot water in the bag with fresh hot water because it was slowly cooling down. After the 30 minutes were up we closed the clamps and removed the hot and cold bags from the tubing and counted the number of shrimp in each section and recorded our results. We did not count any dead shrimp because that condition would obviously not be a condition they could survive in. In this part of the lab we measured the temperature of water from each section and recorded that number also. We did this by simply pouring the water from each section into 4 different test tubes and placing a thermometer in each.

In the mid 70’s, my family bought a cabin on the Illinois River. We spent all our free time there, weekends and most of the summer. For years my family enjoyed their time at the “clubhouse” as we called it. It was our home away from home. There were about 20 cabins there, so it was like our own little community. Just about everyone there was like extended family. Any time someone needed help, the neighbors showed up. Everyone there had similar interests, hunting, fishing, boating and water skiing. I spent most of my days enjoying these activities.

When compared to a similar study, a similar conclusion was made. In a study conducted by Gerristen, he studied if Daphnia would experience a positive or a negative thermotactic reaction when exposed to a variety of different temperatures. Once the experiment was completed, Gerristen was able to conclude that the Daphnia did indeed experience a negative thermotactic reaction and swam away from the cold stimuli. He claimed that these results were due to the Daphnia’s natural instinct to seek warmer water (Gerristen 1982).

The researchers addressed known influential factors verbally, but not all factors were controlled during the experiment. For example, time of day, the white coat effect along with respirations and heart rate were not addressed in the results.

Another main challenge facing the Great Lakes is the threat of invasive species, specifically the Asian Carp. The Asian Carp is very dangerous to the great lakes if they were to invade the Great Lakes they would have the capability to knock out entire species of fish while having no real predators. The intrusion of this fish has the potential to ruin the lake's ecosystem altogether. Not only would it hurt the ecosystem immensely, but would drastically hurt the 7 billion dollar fishing industry in the United States. The Greats Lake Restoration Initiative has funded electronic barriers in places vulnerable to the Asian Carp, to keep the fish out of the Great Lakes. These barriers have been successful and have slowed the spread of Asian Carp in

The example given is the coral trout, a fish that is commercially important. Since the water temperature has risen higher up in the water, these trout tend to be more lethargic now; they stay lower in the water. This is crucial because all of their hunting and mating ground is higher

Description of Experiment:In this experiment to test the effect of colder temperatures on goldfish respiration rate.We started with a beaker