Scherer, Avery E; Bird, Christopher E; McCutcheon, Melissa R; Hu, Xinping; Smee, Delbert L (2018): (Experiment 1b) Shell crushing force for eastern oysters Crassostrea virginica reared under variable predation conditions (S. Texas, 2013-14) [dataset]. PANGAEA, https://doi.org/10.1594/PANGAEA.892087, In supplement to: Scherer, AE et al. (2018): Two-tiered defense strategy may compensate for predator avoidance costs of an ecosystem engineer. Marine Biology, 165(8), 131, https://doi.org/10.1007/s00227-018-3391-2
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Coverage:
Latitude: 28.130000 * Longitude: -96.980000
Event(s):
Comment:
Experimental design:
Treatment (2 levels): oysters were reared in the field in cages which did (predator) or did not (control) contain a blue crab predator isolated to prevent consumption
Cage (17 levels): the experiment included 17 cages, 9 assigned to control and 8 to predator treatments
Replicate (5 levels): 5 oysters from each cage were sampled individually
Parameter(s):
| # | Name | Short Name | Unit | Principal Investigator | Method/Device | Comment |
|---|---|---|---|---|---|---|
| 1 | Treatment | Treat | Scherer, Avery E | |||
| 2 | Identification | ID | Scherer, Avery E | Cage | ||
| 3 | Replicate | Repl | Scherer, Avery E | |||
| 4 | Force | F | N | Scherer, Avery E | Kistler 5995 charge amplifier and Kistler 9222 force center with sensitivity 19 and range 2000; measured in force pounds, converted to Newtons using crushing.force.lbf * 4.45 | Shell crushing force |
License:
Creative Commons Attribution-NonCommercial-ShareAlike 3.0 Unported (CC-BY-NC-SA-3.0)
Size:
340 data points
Data
| 1 Treat | 2 ID | 3 Repl | 4 F [N] |
|---|---|---|---|
| control | 1 | 1 | 129.05 |
| control | 1 | 2 | 84.55 |
| control | 1 | 3 | 102.35 |
| control | 1 | 4 | 200.25 |
| control | 1 | 5 | 106.80 |
| control | 2 | 1 | 93.45 |
| control | 2 | 2 | 151.30 |
| control | 2 | 3 | 80.10 |
| control | 2 | 4 | 106.80 |
| control | 2 | 5 | 102.35 |
| control | 3 | 1 | 111.25 |
| control | 3 | 2 | 106.80 |
| control | 3 | 3 | 137.95 |
| control | 3 | 4 | 93.45 |
| control | 3 | 5 | 151.30 |
| control | 4 | 1 | 160.20 |
| control | 4 | 2 | 133.50 |
| control | 4 | 3 | 66.75 |
| control | 4 | 4 | 89.00 |
| control | 4 | 5 | 89.00 |
| control | 5 | 1 | 111.25 |
| control | 5 | 2 | 89.00 |
| control | 5 | 3 | 84.55 |
| control | 5 | 4 | 129.05 |
| control | 5 | 5 | 151.30 |
| control | 6 | 1 | 102.35 |
| control | 6 | 2 | 62.30 |
| control | 6 | 3 | 66.75 |
| control | 6 | 4 | 137.95 |
| control | 6 | 5 | 62.30 |
| control | 7 | 1 | 115.70 |
| control | 7 | 2 | 89.00 |
| control | 7 | 3 | 66.75 |
| control | 7 | 4 | 111.25 |
| control | 7 | 5 | 169.10 |
| control | 8 | 1 | 195.80 |
| control | 8 | 2 | 137.95 |
| control | 8 | 3 | 62.30 |
| control | 8 | 4 | 106.80 |
| control | 8 | 5 | 111.25 |
| control | 9 | 1 | 71.20 |
| control | 9 | 2 | 66.75 |
| control | 9 | 3 | 106.80 |
| control | 9 | 4 | 102.35 |
| control | 9 | 5 | 71.20 |
| predator | 10 | 1 | 111.25 |
| predator | 10 | 2 | 356.00 |
| predator | 10 | 3 | 160.20 |
| predator | 10 | 4 | 191.35 |
| predator | 10 | 5 | 124.60 |
| predator | 11 | 1 | 93.45 |
| predator | 11 | 2 | 151.30 |
| predator | 11 | 3 | 151.30 |
| predator | 11 | 4 | 137.95 |
| predator | 11 | 5 | 89.00 |
| predator | 12 | 1 | 111.25 |
| predator | 12 | 2 | 160.20 |
| predator | 12 | 3 | 178.00 |
| predator | 12 | 4 | 151.30 |
| predator | 12 | 5 | 155.75 |
| predator | 13 | 1 | 129.05 |
| predator | 13 | 2 | 200.25 |
| predator | 13 | 3 | 111.25 |
| predator | 13 | 4 | 133.50 |
| predator | 13 | 5 | 124.60 |
| predator | 14 | 1 | 129.05 |
| predator | 14 | 2 | 133.50 |
| predator | 14 | 3 | 115.70 |
| predator | 14 | 4 | 137.95 |
| predator | 14 | 5 | 93.45 |
| predator | 15 | 1 | 151.30 |
| predator | 15 | 2 | 93.45 |
| predator | 15 | 3 | 71.20 |
| predator | 15 | 4 | 66.75 |
| predator | 15 | 5 | 133.50 |
| predator | 16 | 1 | 71.20 |
| predator | 16 | 2 | 182.45 |
| predator | 16 | 3 | 71.20 |
| predator | 16 | 4 | 182.45 |
| predator | 16 | 5 | 133.50 |
| predator | 17 | 1 | 93.45 |
| predator | 17 | 2 | 106.80 |
| predator | 17 | 3 | 204.70 |
| predator | 17 | 4 | 102.35 |
| predator | 17 | 5 | 129.05 |