About The Data
This data set was collected and processed by the Connecticut
Department of Agriculture Bureau of Aquaculture. Samples consisted of
adult oysters collected along the Connecticut coastline. For a complete
description of data, please contact Dr. Bienlien at lydia.bienlien@ct.gov.
Number of Samples and Locations
Locations in 2024
| 2024 |
Stony Creek (Bradleys Cove) |
Branford |
| 2024 |
L598 |
Wesport |
| 2024 |
Mid Quinnipiac |
New Haven |
| 2024 |
Fence Creek |
Madison |
| 2024 |
12_1 Hammonasset |
Madison |
| 2024 |
Track 6 Housatonic |
Stratford |
| 2024 |
Mayhew |
Greenwich |
| 2024 |
L49 |
Norwalk |
| 2024 |
Ledyard Ground, Thames River |
Ledyard |
| 2024 |
Sasco Beach |
Fairfield |
| 2024 |
L-420 |
Stratford |
| 2024 |
East River |
Guildford |
| 2024 |
Clam Point 1 |
Stonington |
| 2024 |
Milford Harbor |
Milford |
Image Credit: Michal
Zuber
Length, Condition, and Gonadal Stage of Samples
Average Sample Length in 2024
| 88.69 |
Condition Counts in 2024
| 2024 |
283 |
136 |
1 |
0 |
Oyster Sex Ratios in 2024
| 2024 |
I |
275 |
| 2024 |
F |
124 |
| 2024 |
M |
19 |
| 2024 |
H |
1 |
| 2024 |
NA |
1 |
I = indeterminate/indifferent, F = female, M = male, H =
hermaphrodite
Gonadal Stage in 2024
| 7 |
364 |
| 6 |
1 |
| 5 |
25 |
| 4 |
3 |
| 1 |
4 |
| 0 |
22 |
| NA |
1 |
0 = castrated, 1 = inactive/indeterminate, 2 = developing, 3 = early
active, 4 = late/mature, 5 = spawning, 6 = post-spawn, 7 =
reabsorbing
Spat and Primary Fouling Organisms
Prevalence of Spat
| 2024 |
26.9 |
Top Ten Fouling Organisms and Conditions
| ShellMudBlister |
309 |
| Barnacles |
164 |
| PolydoraSpp |
45 |
| Peacrabs |
42 |
| CrepidulaSpp |
38 |
| RedSeaweed |
27 |
| DrillHole |
22 |
| ClionaSpp |
14 |
| AbnormalColor |
10 |
| Mussels |
10 |
Disease Prevalences for 2024
Prevalence of MSX
| 2024 |
12.89 |
Prevalence and Weighted Prevalence of Dermo
| 2024 |
87.35 |
1.646 |
Top Ten Disease Organisms or Signs
| Nema |
289 |
| Ciliate |
211 |
| Spheno |
170 |
| Stego |
80 |
| RLO |
37 |
| Trem |
32 |
| SG |
18 |
| Edema |
12 |
| Turb |
7 |
| Xenoma |
3 |
Nema = Nematopsis spp., Spheno = Sphenophyra spp., Stego =
Stegotricha spp., RLO = Rickettisia-like organisms, Trem = Trematodes,
SG = Sprague’s gregarines, Turb = Turbellaria spp.
Packages
(tidyverse), (knitr), (prettydoc), (here), (RColorBrewer), (maps)
Versions and Citations
R version 4.3.0 (2023-04-21 ucrt) Platform: x86_64-w64-mingw32/x64
(64-bit) Running under: Windows 11 x64 (build 26200)
R Core Team (2023). R: A Language and Environment for Statistical
Computing. R Foundation for Statistical Computing, Vienna, Austria.
https://www.R-project.org/.
