The Effect of Varied Levels of Salinity on Chlorophyll A Levels In Caulerpa Sertularioides
School Name
Spring Valley High School
Grade Level
11th Grade
Presentation Topic
Botany
Presentation Type
Non-Mentored
Abstract
Caulerpa Sertularioides is an invasive seaweed native to regions near the Mediterranean Sea. It is used as a staple in many sushi dishes and in aquariums as a nitrate absorber. The purpose of this experiment was to find which salinity concentration that would provide the most beneficial change in chlorophyll A and B Concentrations for the ferns in a 1-month time span. It was predicted that the ferns in the 35 ppt salinity concentration would have the most beneficial chlorophyll level in comparison to the other groups because the average salinity of the Mediterranean Sea is 35. 30 ferns were planted in each treatment of 30ppt water, 35 ppt water, and 40 ppt water. The water treatment with 35 ppt was used as the control and the ferns were measured in daily intervals so a total of 30 measurements were taken per salinity level. After the 2 week experiment, the hypothesis was supported because the plants that were planted in the 35 g/L salinity had the closest absorbance value to 0. The plants in the 40 g/L water constantly increased throughout the experiment and the plants in the 30 g/L increased during the first week but decreased during the second week. This decrease could be due to the heightened adaptiveness of the plant. A one-way ANOVA was run on the end of the second-week data and it yielded a p-value of <.00001 which meant that there was a significant difference between the salinity concentrations.
Recommended Citation
Boysia, Frank, "The Effect of Varied Levels of Salinity on Chlorophyll A Levels In Caulerpa Sertularioides" (2019). South Carolina Junior Academy of Science. 247.
https://scholarexchange.furman.edu/scjas/2019/all/247
Location
Founders Hall 111 B
Start Date
3-30-2019 9:45 AM
Presentation Format
Oral and Written
Group Project
No
The Effect of Varied Levels of Salinity on Chlorophyll A Levels In Caulerpa Sertularioides
Founders Hall 111 B
Caulerpa Sertularioides is an invasive seaweed native to regions near the Mediterranean Sea. It is used as a staple in many sushi dishes and in aquariums as a nitrate absorber. The purpose of this experiment was to find which salinity concentration that would provide the most beneficial change in chlorophyll A and B Concentrations for the ferns in a 1-month time span. It was predicted that the ferns in the 35 ppt salinity concentration would have the most beneficial chlorophyll level in comparison to the other groups because the average salinity of the Mediterranean Sea is 35. 30 ferns were planted in each treatment of 30ppt water, 35 ppt water, and 40 ppt water. The water treatment with 35 ppt was used as the control and the ferns were measured in daily intervals so a total of 30 measurements were taken per salinity level. After the 2 week experiment, the hypothesis was supported because the plants that were planted in the 35 g/L salinity had the closest absorbance value to 0. The plants in the 40 g/L water constantly increased throughout the experiment and the plants in the 30 g/L increased during the first week but decreased during the second week. This decrease could be due to the heightened adaptiveness of the plant. A one-way ANOVA was run on the end of the second-week data and it yielded a p-value of <.00001 which meant that there was a significant difference between the salinity concentrations.
