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During Summer 2007, our industry partners produced over 25 million spat (recently settled oysters). The setting percentage was calculated by estimating the total number of spat produced divided by the total number of larvae placed into the setting tanks. This estimate was obtained from a mean count of the number of spat attached to 100 shells from each set. Spat were deployed to nearby reef locations. Post-Deployment survival describes the number of spat remaining on the reef approximately one week after deployment or planting. For more information or questions regarding these data contact Dr. Stan Allen (ska@vims.edu).
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River |
Reef location |
Hatchery salinity |
Date set |
Setting percentage (%) |
Number of oysters deployed |
Post-Deployment survival (%) |
Coan |
Honest Point/PG #77* |
High |
6/8/07 |
6.80 |
680,400 |
81.25 |
| |
|
High |
8/10/07 |
8.63 |
1,942,650 |
62.46 |
|
|
High |
9/19/07 |
8.95 |
1,341,900 |
94.87 |
Great Wicomico River |
Shell Bar Reef |
Low |
6/29/07 |
4.64 |
464,000 |
66.02 |
|
|
Low |
7/21/07 |
3.71 |
814,000 |
73.44 |
|
|
Low |
8/17/07 |
4.13 |
784,000 |
69.60 |
|
|
Low |
8/1/07 |
3.10 |
681,200 |
60.46 |
|
|
Low |
6/30/07 |
0.25 |
24,750 |
45.45 |
|
|
Low |
7/27/07 |
6.60 |
1,451,400 |
52.11 |
|
Hilly Wash/PG #15 |
High |
7/7/07 |
11.90 |
1,785,000 |
59.68 |
|
|
Low |
8/7/07 |
7.69 |
1,551,000 |
47.68 |
|
Rogue Point/PG # 18 |
Low |
7/14/07 |
12.33 |
3,012,750 |
89.79 |
|
|
Low |
8/29/07 |
1.76 |
334,800 |
98.39 |
Nansemond River |
PG #6 |
Low |
8/27/07 |
2.03 |
344,400 |
55.50 |
Pocomoke Sound |
PG #9 |
High |
6/13/07 |
5.10 |
509,586 |
55.91 |
|
|
Low |
8/8/07 |
6.28 |
817,003 |
48.77 |
Rappahannock |
Big Wicks/PG #1 |
High |
6/1/07 |
2.40 |
240,194 |
40.95 |
|
|
High |
6/12/07 |
5.36 |
536,490 |
69.83 |
|
|
High |
6/30/07 |
3.86 |
385,560 |
91.76 |
|
|
High |
9/1/07 |
7.77 |
1,708,560 |
78.13 |
|
|
High |
6/1/07 |
3.78 |
377,555 |
26.67 |
|
Little Wicks/PG #1 |
High |
6/8/07 |
10.77 |
1,077,000 |
120.00 |
|
|
High |
6/29/07 |
4.17 |
417,100 |
139.94 |
|
|
High |
7/26/07 |
1.69 |
253,413 |
107.80 |
|
|
High |
8/14/07 |
11.38 |
2,559,417 |
81.24 |
Yeocomico |
Barn Point/PG #112 |
High |
7/20/07 |
3.87 |
870,600 |
96.28 |
|
|
High |
8/10/07 |
9.57 |
2,105,110 |
52.17 |
|
|
High |
9/6/07 |
7.28 |
1,455,460 |
93.96 |
| *PG = Public ground |
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