Effect of temperature
Results
In this experiment, results from two Procambarus propinquus (crayfish) were collected to observe the difference in oxygen consumption at different acclimated temperatures. These cray fish were collected from Medway Creek in London, and acclimated to their new environment and temperatures. The crayfish were exposed to the cold environment having an average temperature of 7° or warm having an average of 22°. An unpaired, two-tailed t test was performed to determine if there would be a change in O2 consumption between 2 individual crayfish. According to the hypothesis, there is no change in acclimated consumption and our results indicated that the oxygen did change (P=0.9519). Comparing the two sets of data, we found …show more content…
propinquus that have been acclimated to their respective temperatures will show oxygen consumption. The data showed us that due to no difference in metabolic rates between the crayfish, compensation did occur. The oxygen consumption stayed primarily constant throughout the whole experiment, except at the beginning when it changed briefly. The brief change can be due to experimental error or stress to the crayfish, such as when they were placed in a new environment causing displacement to the respirometer. This was also supported by the Q10 value being 1, meaning that the crayfish are not affected by temperature sensitivity and can tolerate a big range of temperatures, showing us that temperature and rate of oxygen consumption are independent events. This results in a population of acclimated crayfish that are found in Medway Creek and many different environments with matching temperatures. Living in Canada, the crayfish must tolerate a very large range of temperatures, from freezing to hot temperatures, in order to be able to survive and live comfortably in. Temperature was found to be a factor affecting the rate of oxygen consumption by altering dissolved oxygen levels. As stated by Powell et al. (2006), there shows to be less dissolved oxygen in warmer waters, and these waters have been found to increase rates of ectotherms that are in the respective conditions, because in order to survive they must acclimate to their environment (Daniels and Ermitage, 1968). According to this study, if the crayfish used in the lab were put in an environment different than the one from their acclimated temperature, the oxygen consumption rate would likely be higher at first and then would decrease significantly as they acquire a thermal equilibrium with their new environment. A similar study was done to analyze the study of metabolic compensation in response to altering temperature Opsansua tau (toadfish), (Haschemeyer, 1969). The data used in this study was variable due to
Results
In this experiment, results from two Procambarus propinquus (crayfish) were collected to observe the difference in oxygen consumption at different acclimated temperatures. These cray fish were collected from Medway Creek in London, and acclimated to their new environment and temperatures. The crayfish were exposed to the cold environment having an average temperature of 7° or warm having an average of 22°. An unpaired, two-tailed t test was performed to determine if there would be a change in O2 consumption between 2 individual crayfish. According to the hypothesis, there is no change in acclimated consumption and our results indicated that the oxygen did change (P=0.9519). Comparing the two sets of data, we found …show more content…
propinquus that have been acclimated to their respective temperatures will show oxygen consumption. The data showed us that due to no difference in metabolic rates between the crayfish, compensation did occur. The oxygen consumption stayed primarily constant throughout the whole experiment, except at the beginning when it changed briefly. The brief change can be due to experimental error or stress to the crayfish, such as when they were placed in a new environment causing displacement to the respirometer. This was also supported by the Q10 value being 1, meaning that the crayfish are not affected by temperature sensitivity and can tolerate a big range of temperatures, showing us that temperature and rate of oxygen consumption are independent events. This results in a population of acclimated crayfish that are found in Medway Creek and many different environments with matching temperatures. Living in Canada, the crayfish must tolerate a very large range of temperatures, from freezing to hot temperatures, in order to be able to survive and live comfortably in. Temperature was found to be a factor affecting the rate of oxygen consumption by altering dissolved oxygen levels. As stated by Powell et al. (2006), there shows to be less dissolved oxygen in warmer waters, and these waters have been found to increase rates of ectotherms that are in the respective conditions, because in order to survive they must acclimate to their environment (Daniels and Ermitage, 1968). According to this study, if the crayfish used in the lab were put in an environment different than the one from their acclimated temperature, the oxygen consumption rate would likely be higher at first and then would decrease significantly as they acquire a thermal equilibrium with their new environment. A similar study was done to analyze the study of metabolic compensation in response to altering temperature Opsansua tau (toadfish), (Haschemeyer, 1969). The data used in this study was variable due to