Essay Brine Shrimp and Ethanol Alcohol
Biology 151 Laboratory
ABSTRACT Artemia salina are used as environmental indicator species. They are used to test changes in their environment. A. salina is sensitive to toxins, temperature, and drugs. For the experiment, cysts were put into different amounts of ethanol alcohol and their viability was measured. The hypothesis used was if there is more ethanol alcohol, then the viability of the brine shrimp is unfavorable. The brine shrimp were put into sixteen Petri dishes with the same amount of brine solution. Different amounts of ethanol alcohol were added to each Petri dish. After 168 hours, the brine shrimp were …show more content…
After 168 hours, the cysts became nauplii and some died and some survived. In treatment four, there was no ethanol alcohol mixed with the brine solution; it had the lowest viability. Treatment one had the most viability with 0.10 mL of ethyl alcohol. Treatment two and three had the most ethanol alcohol therefore the viability was low as well, but not as low as treatment four (Table 1). This shows that small amounts of ethanol alcohol are favorable for brine shrimp viability. The average, also shows that the viability of treatment two was the highest, which represents brine shrimp are able to survive in minimal amounts of ethanol alcohol (Table 1). The viability of the shrimp started to increase and then had an acute decrease (Figure 1).
With the averages, the standard deviations were also calculated. The standard