Title: Hydrological Analysis of Dissolved Oxygen in Lake Munson, Elberta Crate, Lake Henrietta, and Lake Bradford
1Hydrological Analysis of Dissolved Oxygen in Lake
Munson, Elberta Crate, Lake Henrietta, and Lake
Bradford
- By Rebecca Davis, Meron Deldebo, Katherine Edel,
Maya Gaines, Alex Mancuso, Nwamaka Onyeozili,
Shan Shan Xu
2Importance of Dissolved O2
- Like terrestrial animals, fish and other aquatic
organisms need oxygen to live. - Oxygen also is needed by virtually all algae and
all macrophytes, and for many chemical reactions
that are important to lake functioning.
3Elberta Crate
- The Elberta Crate Regional Storm Water Facility
is a retention pond for urban storm water. - Some pollutants and trash carried along with
storm water are diverted and contained. - During heavy rainfall events, the storm water
bypasses Elberta and flows directly to Munson
Slough and Lake Munson.
4Lake Munson
- For years, Lake Munson has ranked as one of
Florida's most polluted lakes. - Storm water carrying pollution from streets and
lawns flows from FSU and much of central
Tallahassee south to Lake Munson and then into
sinkholes where it enters the aquifer. - Lake Munson has recently undergone a restoration
process to improve recreational value.
5Lake Henrietta
- The Lake Henrietta basin, located upstream of
Lake Munson. - Historically provided storm water treatment for
the natural flow through the system.
6Lake Bradford
- The Florida State University Reservation is a
73-acre facility, with 10 active acres, located
on beautiful Lake Bradford.
7Research Problem
- Measure the level of dissolved oxygen within
water in Lake Munson, Lake Bradford, Elberta
Crate, and Lake Henrietta over a period of 4
hours.
8Hypothesis
- The amount of dissolved oxygen in the lakes will
be lower during the morning, due to lower
temperatures, reduced photosynthesis, and
consumption of O2 during the night. - The amount of dissolved oxygen in Lake Henrietta,
Elberta Crate and Lake Munson should be lower
than Lake Bradford because of cultural
eutrophication.
9Procedure
- Three samples of water were collected and tested
for dissolved oxygen levels at three different
times of day at each lake. - Each lake was tested on a different day though we
tried to ensure that weather conditions were as
similar as possible for testing. - The water temperature was recorded before each
trial.
10Results(on average)
Lake 11 am 1pm 3pm
Munson 8.8 ppm 8.9 ppm 8.7 ppm
Bradford 7.4 ppm 6.5 ppm 6.5 ppm
Henrietta 8.2 ppm 8.2 ppm 8.5 ppm
Elberta Crate 7.4 ppm 9.3 ppm 9.4 ppm
11Conclusion
- The amount of dissolved oxygen tended to increase
or stay the same as the time of day progressed
for all lakes except Lake Bradford. - The reason for the decrease of dissolved oxygen
during the night time is because photosynthesis
occurs only during day time.
12Improvements
- Collect more samples to get a better spread of
the data. - Schedule testing on days with the exact same
temperature or perform all tests at the same
times and on the same day.
13(No Transcript)
14Do wear boots when going into the water.Dont
wear an entire outfit that belongs to an
Oompa-Loompa
15GroupNwamakaMeronAlexShanShanBeckyMayaKathr
ynLocationsLake BradfordLake MunsonLake
HenriettaElberta Crate