The temperature of water affects the respiration rate of goldfish, the number of breaths taken per minute, because as a goldfish’s metabolic rate, the rate at which metabolism occurs, changes, the heart and respiration rates will also change. If the metabolic rate increases, the respiration rate increases as well in order to deliver more oxygen at a faster pace to meet the increased need for oxygen. If the metabolic rate decreases, on the other hand, the respiration rate will decrease because they don’t need as much oxygen in the set time frame.
The cold water experimental group had the lowest respiration rate with an average of 85 operculum contracts per minute. When the temperature of water is decreased, the metabolic rate of the goldfish also decreases since they are ectothermic, meaning their regulation of body temperature depends on external sources from the environment. Since they are metabolizing at a slow pace, their need for oxygen is
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This is a large jump from both the cold water group (85) and the room temperature control group (95.2). As water temperature increases, the amount of oxygen the water contains decreases. This causes the goldfish to breathe faster in order to get enough oxygen to survive. In addition, the increase in the temperature also increased the metabolic activity of the goldfish. Since their metabolic activity increased, they were metabolizing at a much faster pace than the other groups, which makes their need for oxygen much stronger. The respiration rate for this group was likely so high because the water was too hot for them. This is a probable scenario because our research said that goldfish can thrive in a wide range of temperatures from 10 to 20 degrees C, and all of the hot water trials were above 20 degrees. The cold water, on the other hand, tested temperatures from 12 to 20 (the control/room temperature) degrees
As some test is shown according to the article “Do fish have feelings? Maybe…” by Sonia Planellas, a student at the University of Stirling introduces a study that scientist are looking more into is the Zebrafish Test. In this test, they observe the behaviors of zebrafish under the situation of being confined in a net and then being released and seeing where those stressed fish would end up in the tempered waters. Pinellas quotes, “ The stressed fish spent more time in the warm waters and their body temperatures had risen by between 2°C and 4°C – and that emotional fever was the cause.” The purpose of this experiment was that fish are conscious when they are in danger to the point that their body temperature rose which they knew what was going
My hypothesis for this experiment is that the higher the levels of caffeine the water flea was exposed to, the quicker the heart rate would be.
Understanding other people’s perspective is vital when it comes to making someone a more informed and a more sympathetic person. For example, in politics, there are two main sides; the democrats and the republicans. These two sides almost never see eye to eye, but when they see from the other’s point of view, an agreement can be made.
I predicted that the blackworms in higher caffeinated solutions would have higher pulse rates, because caffeine is known to increase blood pressure and heart rate. However as far as scientists know, invertebrates are not expected to have a strong response to caffeine like vertebrates do. Also, caffeine in low doses is known to lower pulse rate. The results do not support my hypothesis. The results show that when black worms are placed in caffeinated solutions, their pulse rates on average are lower than those placed in a solution with no caffeine. A possible flaw that may have occurred during experimentation is that the petri dishes were not properly cleansed, or that there were other properties in the water that influenced the outcome. To eliminate these flaws, I could have boiled the petri dishes and water to insure that there were no other properties to influence the data. Further experimentation should be performed with higher doses of caffeine to further insure that caffeine does in fact lower their pulse rate. The insufficient number of trials performed lead to less confidence in my conclusion that caffeine lowers the heart rate in
...ank you have to make sure that the right temperature stays in the tank because if the water gets to hot they wont really have a place to go too, so they could end up over heating and could die. It is also important to have the right type of food for them as well. They like to eat worms, squid, and sometimes other fish.
The ocean is a beautiful scenery and one creature that has brought beauty to it is the starfish. When in danger a starfish may drop off one of its legs to protect itself and it will regrow over months or even years. This amazing ability will not help them this time. Starfish are dying out due to the wasting syndrome that is believed to be caused by temperature changes in the water and if the starfish population continues to decrease then this will offset the food chain.
Welcome to the world of fish physics. Many of us understand basic fish behavior and can reach logical conclusions about where the best place to throw a fishing line is. But when we don’t think much further than that we are missing out on some very interesting details of fish behavior. We can never fully understand why we find some fish in one location and some fish in other locations until we consider the concept of fish bioenergetics. Ultimately, fish behavior is a product of bioenergetics. First, we will take a look at basic fish bioenergetics, understanding the underlying quantitative principles. Then, we will look at some examples of how physical forces, thermodynamics, and light characteristics are specifically related to fish bioenergetics. Most of these models and ideas are made under the assumption that there is no predation or competition, which are additional factors that will influence behavior.
Temperature can determine the chemical reactions in metabolism. When temperature is high, chemical reaction will increase which will have more metabolic activities. In contrast, when temperature is low, metabolic activity will decrease. Metabolic level has an high impact on activity levels. Thus, temperature will affect C. nemorails’ activity level. As temperature increases C. nemoralis’ activity level will increase and as temperature decreases C. nemoralis’ activity level will decrease. However, C. nemorails cannot adapt to temperature above or below its tolerance temperature 8-22C or else they remain at rest or their activity levels will be relatively low.
Imagine this, you’ve lost your focus, you start to get bored, you begin playing with your fingers, you don’t know what to do. Suddenly, you see a beautiful Goldfish swimming around in the water peacefully. It calms you down and gets you focused again. Or maybe in free time you and your friends don’t know what to do, well a Fantail Goldfish is colorful, bright, and keeps you entertained. Our school pet should be a Fantail Goldfish because they typically live about 10 years in an aquarium, so they don’t die quickly. Goldfish have no eyelids so they can’t close their eyes like we do when we're asleep. Despite that, goldfish do rest sometimes during the day and throughout most of the night. Also, make sure to feed your fish in small amounts. Do
Cold water is the key aspect in the phenomenon called the mammalian diving reflex. This reflex has been beneficially used for thousands of years by whales, dolphins, seals and other mammals that inhabit the frigid waters of the world. The diving reflex slows heart rate and causes peripheral vasoconstriction to keep blood and oxygen to the brain and other vital core organs. This reflex allows these mammals to conserve oxygen and stay submerged over longer periods of time, providing them more time for finding food, protection and travel.
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.
Well, you’re right, he said! An adaptation is a change in the body to survive in a certain area or environment. The place where these fish live is in the abyssal zone of the ocean, which is the deepest part of the ocean. The abyssal zone has very extreme cold temperatures. It also has about 2,000 tons of pressure.
The loss of water to the external environment is a problem that all marine fish must deal with. This is because the water contains a higher concentration of solutes (salt) than the fish does (hyperosmotic to the internal environment). This results in an osmotic gradient in which water is lost from the fish to the environment and ions are gained by diffusion. And so the marine fish must continuously drink water to keep hydrated, while the ions are actively regulated by specialised glands via excretion. This is the case with Harlequin tuskfish, which need to constantly drink water and excrete ions to maintain a stable internal environment. The Harlequin tuskfish, like all marine fish has gills that excrete salt, and a reduced, inefficient (in
Mechanisms involved with metabolism, blood flow, and oxygen storage capabilities had to evolve to accommodate diving lifestyles (Costa, 2007). One mechanism is the diving reflex of marine mammals (Heller, Orians, Purves, and Sadava, 1998). This is a highly developed automatic reflex that slows the heart rate of an animal when it submerges underwater (Heller et al., 1998). Humans have a diving reflex that is triggered when a person’s face is immersed in water (Heller et al., 1998). Human’s heart rate automatically slows as soon as a person’s face is completely submerged (Heller et al., 1998). At the end of the dive, heart rate returns at an above-normal rate to flush out the lactate from the muscles back into circulation (Withers, 1992). The period of increased oxygen consumption after a dive is proportional to the amount of oxygen “debt” an animal is after a dive (Withers, 2009). When a marine mammal dives, the majority of the blood flow and available oxygen goes to the animal’s heart and brain (Heller et al., 1998). Scientists have observed that although the heart structure of cetaceans and pinnipeds are very similar to other mammals, one major difference are the enlarged stores of glycogen present in their hearts not found in terrestrial mammals (Berta et al., 2006). Larger stores of
The optimum protein requirement of Catla catla fry was 47% at water temperature 20-30 oC, reported by Singh and Bhanot (1988) comparing to fingerling 40% reported by Mohanty et al. (1988). Fishes retained higher amount of protein in the body for growth when fed with optimum dietary protein levels, thus decreasing cost of production and pollution in the environment (Thoman et al., 1999). The optimum crude protein in diet for warm water fishes are 25% and 36% reported by Garling and Wilson