Smyrna 
Elementary School
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The Effect of Trawling on the Estuary
Duke/Smyrna School Partnership

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Project Introduction
Summer01 Program Description
Summer01 Animal Data 
Summer01 Chemical Data 
Summer01 Pictures
Fall01 Animal Data 
Fall01 Chemical Data 
Fall01 Pictures
Conclusions 01
Spring02 Animal Data
Spring02 Chemical Data
Spring02 Pictures

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Spring 2002 Data Water Chemistry
Sleepy Creek/Straits Open
Midden's Creek Open

Sleepy Creek Closed

Midden's Creek Closed

 

silverside.JPG (40230 bytes)

Jacklyn.JPG (51247 bytes) StStraits.JPG (59699 bytes)

Student counts silversides

Jacklyn reads the GPS Students at work in the Straits.

 
Sleepy Creek/Straits Open
Date Site # Surface D.O.
(ppt.)
Bottom D.O. (ppt.) Salinity
(ppt.)
Temp
C
Water Depth
(m)
Secchi Depth
(m)
5/6/02 1-0 6.8 6.53 35.7 20.2 1.33
5/6/02 2-0 5.7 2.39 35.7 29.2 2 1.25
5/6/02 3-0 6.99 7.05 - - 3 1.2
5/6/02 4-0 6.36 6.43 35.5 20.4 1.26 1.34
5/6/02 5-0 6.7 6.95 35.5 26.5 1.5 1.34

Average

6.51 5.87 35.6 24.1 2.15 1.29

Sleepy Creek Closed
Date Site # Surface D.O.
(ppt.)
Bottom D.O.
(ppt.)
Salinity
(ppt.)
Temp
C
Water Depth
(m)
Secchi Depth
(m)
5/2/02 6-C 6.9 6.67 38.9 25.2 .83 0.83
5/2/02 7-C 6.6 6.68 35.8 24.2 1.0 0.81
5/2/02 8-C 7.3 7.3 35.6 25.6 1.5 0.9
5/2/02 9-C 7.21 7.2 35.9 26.2 1.0 0.88
5/2/02 10-C - - - - - -

Average

7.0 6.9 36.6 25.3 1.08 0.86

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Midden's Creek Open
Date Site # Surface D.O.
(ppt.)
Bottom D.O.
(ppt.)
Salinity
(ppt.)

Temp
C

Water Depth
(m)

Secchi Depth
(m)

5/2/02 1-MO 6.1 6.22 35.6 22 2.5 1.05
5/2/02 2-MO 5.97 5.63 35.6 22 1.85 -
5/2/02 3-MO 6.39 6.51 35.7 22 1.63 0.83
5/2/02 4-MO 6.51 6.53 35.7 22.4 0.83 0.78
5/2/02 5-MO 6.38 6.06 35.6 22.3 1.88 0.74

Average

6.27 6.19 35.64 22.14 1.73 0.74


Midden's Creek Closed
Date Site # Surface D.O.
(ppt.)
Bottom D.O.
(ppt.)
Salinity
(ppt.)
Temp.
C
Water Depth
(m)
Secchi Depth
(m)
5/6/02 6-MC 6.71 6.03 33.9 20 0.78 0.78
5/6/02 7-MC 5.67 6.33 33.9 19.8 1.03 0.8
5/6/02 8-MC 4.41 5.38 34.6 19.8 1.15 1.23
5/6/02 9-MC 7.05 6.28 33.9 19.1 1.4 1.0
5/6/02 10-MC 5.69 6.01 33.9 20.8 1.0 1.0

Average

5.91 6.01 34.0 19.9 1.07

0.96

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