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Smyrna |
The Effect of Trawling on the
Estuary |
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| Introduction |
| Summer |
| Fall |
| Spring |
| Conclusion |
Sleepy Creek/Straits Summer Chemical Data
| Program | Sleepy Creek Animal Data |
Sleepy Creek Chemical Data |
Summary |
| Pictures | Middens Animal Data |
Middens Chemical Data |
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Sleepy Creek/ Straits
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| Date | Surface DO | Bottom DO | Salinity | Temp. | Water Depth | Secchi Depth | ||||||||
| 6/24/02 | 5.91 | 5.79 | 35.2 | 27.2 | 1.4 | 1.3 | ||||||||
| 6/24/02 | 6.86 | 7.06 | 34.9 | 28.4 | 1.3 | 1 | ||||||||
| 6/24/02 | 7.06 | 6.19 | 34.8 | 28.5 | 2.5 | 2 | ||||||||
| 6/24/02 | no data | no data | no data | no data | no data | no data | ||||||||
| 6/24/02 | 6.53 | 5.93 | 34.5 | 27.8 | 1.2 | 1 | ||||||||
| Average | 6.17 | 6.24 | 34.9 | 28 | 1.6 | 1.3 | ||||||||
| 6/24/02 | 6.05 | 5.93 | 35.2 | 27.7 | 1 | 0.8 | ||||||||
| 6/24/02 | 6.33 | 6.33 | 35 | 27.8 | 1 | 0.9 | ||||||||
| 6/24/02 | 5.98 | 6.45 | 35 | 28.5 | 1.3 | 0.8 | ||||||||
| 6/24/02 | 6.7 | 6.65 | no data | no data | 1 | 0.7 | ||||||||
| 6/24/02 | 7.3 | 6.13 | 35 | 26.7 | 1.1 | 1 | ||||||||
| Average | 6.47 | 6.3 | 35.1 | 27.7 | 1.1 | 0.84 | ||||||||
Data Analysis
The salinity in Sleepy Creek in the Summer was 35.1 and in the Fall it was 19.9. The reason for this is because we had a lot of rain in the fall. That meant the salinity in the water decreased. The null hypothesis stated that there was no difference in the data. We used the T-test to determine whether to excepted or throw out the null. We excepted the null because statistically there was no difference in the chemical data.
The salinity in Straits in the Summer was 34.9 and in the Fall it was 17.9. In the summer we got less rain so the salinity was higher than in the fall where we got a lot more rain which decreased the salinity in the water. We did the T-test and rejected the null hypothesis. The salinity was higher in the fall than the summer.