River Ecology Lab
Bio 1
River Ecology Lab Report
Ecology is the study of relationships between organisms and their environment which includes both physical and biological factors. Humans have a major influence on ecosystems and this is very important in the waterways of California. The American River has been influenced greatly by humans by mining for gold, pollution through humans themselves, and an immense amount of other things (Becker 1992). We tested the growth of bacteria in the water of the American River and used fertilizer as a treatment to find out if it would make an impact. The high treatment of fertilizer will have more significant of a change in bacterial growth than the control and low treatment.
As a class we took a long and winding …show more content…
As showed in figure one and two, the control group had an increase in Euglena count from week two to week three, the high and low treatment group both had a small decrease in Euglena count. This shows that fertilizer will have an effect on the environment no matter the amount. Therefore our hypothesis was supported and the high treatment of fertilizer did have a more significant change in bacteria then both the control and the low treatments. Due to the fact the high treatment had a higher dosage of fertilization it decreased the Euglena count more than the low and control treatments did.
All in all, the growth in the bacteria has proven to be decreased by the presence of fertilizer. Now we know that Euglena is in a fertilized environment but it will slowly decrease with a high amount of fertilizer and become less abundant. Our alternative hypothesis saying that the high and low treatment would have the same amount of change was wrong, but our null hypothesis that stated the high treatment of fertilizer will have a more significant change than that of the low and control treatment was supported.
Works
River Ecology Lab Report
Ecology is the study of relationships between organisms and their environment which includes both physical and biological factors. Humans have a major influence on ecosystems and this is very important in the waterways of California. The American River has been influenced greatly by humans by mining for gold, pollution through humans themselves, and an immense amount of other things (Becker 1992). We tested the growth of bacteria in the water of the American River and used fertilizer as a treatment to find out if it would make an impact. The high treatment of fertilizer will have more significant of a change in bacterial growth than the control and low treatment.
As a class we took a long and winding …show more content…
As showed in figure one and two, the control group had an increase in Euglena count from week two to week three, the high and low treatment group both had a small decrease in Euglena count. This shows that fertilizer will have an effect on the environment no matter the amount. Therefore our hypothesis was supported and the high treatment of fertilizer did have a more significant change in bacteria then both the control and the low treatments. Due to the fact the high treatment had a higher dosage of fertilization it decreased the Euglena count more than the low and control treatments did.
All in all, the growth in the bacteria has proven to be decreased by the presence of fertilizer. Now we know that Euglena is in a fertilized environment but it will slowly decrease with a high amount of fertilizer and become less abundant. Our alternative hypothesis saying that the high and low treatment would have the same amount of change was wrong, but our null hypothesis that stated the high treatment of fertilizer will have a more significant change than that of the low and control treatment was supported.
Works