Dahpina Magna Feeding Rate Lab Report

Introduction:

In this experiment the rate of Daphina magna feeding was tested by the concentration of algae they were being fed. This experiment was performed in a three-hour lab period and was performed in groups of three. In this specific experiment the concentration of algae was what was being looked at. Many studies have been performed testing a similar study, the three studies that were relevant to this paper were studies regarding the concentration of algae and how it directly affected the feeding rate of the Dahpina magna. Each of the studies had other studies involved including temperate, swimming patterns and much more, but the concentration of food affecting feeding rate is what was focused on throughout these studies. For our

The hypothesis that went along with this experiment was “higher concentrations of algae will have increased feeding rate of Daphina magna.” The prediction that followed this hypothesis was “if there are higher concentrations within the algae, the Dahpina magna will have an increased feeding rate.” Since Daphina magna are a constantly feeding organism, the rate of feeding will be directly correlated to the amount of food available. In areas where there is an abundance of algae then there should be a positive correlation between the feeding rate and concentration of algae.

Methods:

The lab began with a brief introduction to Daphine magna and an introduction to exactly how the lab was going to be carried out. First they collected 6 clear jars and labelled them accordingly: 0.5 (1), 0.5

The results above showed that when the concentration of algae was 1.0ml the feeding rate increased by 155%. The results supported the hypothesis which stated “the higher algae concentration the faster the feeding rate of Daphina manga. As stated in the results section above, after doing this experiment it was shown that in fact the higher the algae concentration the higher the feeding rate and therefore this did end up supporting the hypothesis. Similar to the hypothesis the prediction that was made was “if there are higher concentration within the algae, the Daphina magna will have an increased feeding rate, it turns out that the prediction that was made was true in this particular experiment has the feeding rate was higher with a higher level of algae