Penaeid_Shrimp_Burrowing_Data
Southeast Fisheries Science Center
Entity
(ENT)
| ID: 33875
| Published / External
Created: 2016-08-01
|
Last Modified: 2022-08-09
Data Set (DS) | ID: 30679
ID: 33875
Entity (ENT)
* Discovery• First Pass
» Metadata Rubric
Item Identification
* » Title | Penaeid_Shrimp_Burrowing_Data |
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* » Abstract |
Brown shrimp, Farfantepenaeus aztecus, and white shrimp, Litopenaeus setiferus, were held were held under natural light conditions before experiments. Experiments were conducted in twelve rectangular tanks (58 cm x 149 cm) under fluorescent lighting (7-10 microEinsteins/sec/sq m). Shrimp were placed in randomly-assigned tanks the day before observations were initiated at 0730 h, the lights were turned on, and observations of thepercentage of shrimp burrowed ( 1/2 of their body beneath the substrate) were recorded hourly (starting at 0830 h) throughout the daylight hours. For both species, burrowing rates decreased significantly as the substrate became courser. Brown shrimp burrowing was marginally affected by salinity with the lowest burrowing rates at 5 ppt white shrimp burrowing was not significantly affected by salinity. Large brown shrimp burrowed more than small and medium sized shrimp, but size did not significantly affect burrowing of white shrimp. The presence of a fish predator in the tanks did not affect burrowing of either species, but hunger level significantly affected burrowing for both species. |
* Purpose |
Study of shrimp behavior |
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Entity Information
Entity Type | Data Table |
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» Description |
"Juvenile shrimp were collected in the Galveston Bay system of Texas, U.S.A. and held before experiments in the laboratory under natural light conditions (skylights) in fiberglass tanks with a crushed shell substrate. Burrowing experiments were conducted in twelve rectangular tanks (58 cm x 149 cm; 0.86 m2 area) located in a dark temperature controlled room equipped with fluorescent lighting and under a 12:12 h day:night light regime. Light was constant during the daylight period in these experimental tanks and was measured near the substrate using a LI-COR quantum meter (Model LI-185B). From 10 observations in each tank during the simulated daylight hours, the mean intensity was 10.6 (SE=0.18) ¿E (microEinsteins) s-1m-2. This light intensity is comparable to the light reaching the bay bottom during a sunny day when incident light at the water’s surface is ~ 1000-2000 ¿E s-1m-2 and the following approximate conditions occur: water depth 2 m, nephelometric turbidity 20 FTUs, an attenuation coefficient (Kd) of 2.0, and a Secchi disk depth of 0.5-0.7 m. Tanks were filled to a depth of 25 cm with sand-filtered seawater pumped from the Gulf of Mexico off Galveston Island. When possible, treatments were randomly applied to tanks; the exception was for substrate experiments where different substrates remained in the same tanks throughout the experimental series. Shrimp from holding tanks, however, were randomly placed in tanks during all experiments. Shrimp were moved from holding tanks to experimental tanks in the afternoon on the day before observations were initiated. At 0730 h the next day, the lights came on, and observations on behavior were recorded hourly (starting at 0830 h) throughout the daylight hours (generally 10 hourly observations during the day). Black plastic curtains surrounded each tank, and observations were made through small portals to avoid disturbance. During each hourly observation period, individual shrimp were categorized into one of eight behaviors." |
Change Summary |
Data Attributes
Attribute Summary
Score | Req'd? | PKey? | » Name | Data Storage Type | Description |
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100 | No | No | Shrimp species | CHAR | Brown shrimp, Farfantepenaeus aztecus, or white shrimp, Litopenaeus setiferus |
100 | No | No | Experiment | CHAR | Identifies the experimental factor examined |
100 | No | No | Date | NUMBER | Date the experiment was conducted |
100 | No | No | Block | CHAR | The same experiments were conducted on two separate days, Day1 and Day2 |
100 | No | No | Time | NUMBER | Military time |
100 | No | No | Treatment | CHAR | Treatement examined in each experiment |
100 | No | No | Tank | CHAR | Experimental tank |
100 | No | No | Completely Burrowed | NUMBER | Number of shrimp in tank that were completely burrowed |
100 | No | No | Eyes Showing | NUMBER | Number of shrimp in tank that had their eyes showing above substrate |
100 | No | No | Head Showing | NUMBER | Number of shrimp in tank that had their head showing above substrate |
100 | No | No | More than Half Burrowed | NUMBER | Number of shrimp in tank that were more than half beneath the substrate |
100 | No | No | Less than Half Burrowed | NUMBER | Number of shrimp in tank that were less than half beneath the substrate |
100 | No | No | Stationary | NUMBER | Number of shrimp in tank that were stationary on the substrate |
100 | No | No | Crawling | NUMBER | Number of shrimp in tank that were crawling on the substrate |
100 | No | No | Swimming | NUMBER | Number of shrimp in tank that were swimming |
100 | No | No | Number Present | NUMBER | Number of shrimp in tank used to calculate percentages |
100 | No | No | Final Count | NUMBER | Number of shrimp in tank at end of experiment |
100 | No | No | Percent Burrowed | NUMBER | Percentage of shrimp in tank burrowed (more than half beneath substrate) |
Attribute Details
Attribute Name | Shrimp species |
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Seq. Order | 1 |
Data Storage Type | CHAR |
Max Length | 12 |
Min Length | |
Required | No |
Primary Key | No |
Precision | |
Scale | |
Status | Active |
Description |
Brown shrimp, Farfantepenaeus aztecus, or white shrimp, Litopenaeus setiferus |
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Attribute Name | Experiment |
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Seq. Order | 2 |
Data Storage Type | CHAR |
Max Length | 10 |
Min Length | |
Required | No |
Primary Key | No |
Precision | |
Scale | |
Status | Active |
Description |
Identifies the experimental factor examined |
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Attribute Name | Date |
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Seq. Order | 3 |
Data Storage Type | NUMBER |
Max Length | 8 |
Min Length | |
Required | No |
Primary Key | No |
Precision | |
Scale | |
Status | Active |
Description |
Date the experiment was conducted |
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Attribute Name | Block |
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Seq. Order | 4 |
Data Storage Type | CHAR |
Max Length | 4 |
Min Length | |
Required | No |
Primary Key | No |
Precision | |
Scale | |
Status | Active |
Description |
The same experiments were conducted on two separate days, Day1 and Day2 |
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Attribute Name | Time |
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Seq. Order | 5 |
Data Storage Type | NUMBER |
Max Length | 4 |
Min Length | |
Required | No |
Primary Key | No |
Precision | |
Scale | |
Status | Active |
Description |
Military time |
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Attribute Name | Treatment |
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Seq. Order | 6 |
Data Storage Type | CHAR |
Max Length | 20 |
Min Length | |
Required | No |
Primary Key | No |
Precision | |
Scale | |
Status | Active |
Description |
Treatement examined in each experiment |
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Attribute Name | Tank |
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Seq. Order | 7 |
Data Storage Type | CHAR |
Max Length | 2 |
Min Length | |
Required | No |
Primary Key | No |
Precision | |
Scale | |
Status | Active |
Description |
Experimental tank |
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Attribute Name | Completely Burrowed |
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Seq. Order | 8 |
Data Storage Type | NUMBER |
Max Length | 2 |
Min Length | |
Required | No |
Primary Key | No |
Precision | |
Scale | |
Status | Active |
Description |
Number of shrimp in tank that were completely burrowed |
General Data Type | |
Unit of Measure | |
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Validation Rules |
Attribute Name | Eyes Showing |
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Seq. Order | 9 |
Data Storage Type | NUMBER |
Max Length | 2 |
Min Length | |
Required | No |
Primary Key | No |
Precision | |
Scale | |
Status | Active |
Description |
Number of shrimp in tank that had their eyes showing above substrate |
General Data Type | |
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Validation Rules |
Attribute Name | Head Showing |
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Seq. Order | 10 |
Data Storage Type | NUMBER |
Max Length | 2 |
Min Length | |
Required | No |
Primary Key | No |
Precision | |
Scale | |
Status | Active |
Description |
Number of shrimp in tank that had their head showing above substrate |
General Data Type | |
Unit of Measure | |
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Attribute Name | More than Half Burrowed |
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Seq. Order | 11 |
Data Storage Type | NUMBER |
Max Length | 2 |
Min Length | |
Required | No |
Primary Key | No |
Precision | |
Scale | |
Status | Active |
Description |
Number of shrimp in tank that were more than half beneath the substrate |
General Data Type | |
Unit of Measure | |
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Attribute Name | Less than Half Burrowed |
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Seq. Order | 12 |
Data Storage Type | NUMBER |
Max Length | 2 |
Min Length | |
Required | No |
Primary Key | No |
Precision | |
Scale | |
Status | Active |
Description |
Number of shrimp in tank that were less than half beneath the substrate |
General Data Type | |
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Attribute Name | Stationary |
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Seq. Order | 13 |
Data Storage Type | NUMBER |
Max Length | 2 |
Min Length | |
Required | No |
Primary Key | No |
Precision | |
Scale | |
Status | Active |
Description |
Number of shrimp in tank that were stationary on the substrate |
General Data Type | |
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Attribute Name | Crawling |
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Seq. Order | 14 |
Data Storage Type | NUMBER |
Max Length | 2 |
Min Length | |
Required | No |
Primary Key | No |
Precision | |
Scale | |
Status | Active |
Description |
Number of shrimp in tank that were crawling on the substrate |
General Data Type | |
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Attribute Name | Swimming |
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Seq. Order | 15 |
Data Storage Type | NUMBER |
Max Length | 2 |
Min Length | |
Required | No |
Primary Key | No |
Precision | |
Scale | |
Status | Active |
Description |
Number of shrimp in tank that were swimming |
General Data Type | |
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Attribute Name | Number Present |
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Seq. Order | 16 |
Data Storage Type | NUMBER |
Max Length | 2 |
Min Length | |
Required | No |
Primary Key | No |
Precision | |
Scale | |
Status | Active |
Description |
Number of shrimp in tank used to calculate percentages |
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Attribute Name | Final Count |
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Seq. Order | 17 |
Data Storage Type | NUMBER |
Max Length | 2 |
Min Length | |
Required | No |
Primary Key | No |
Precision | |
Scale | |
Status | Active |
Description |
Number of shrimp in tank at end of experiment |
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Attribute Name | Percent Burrowed |
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Seq. Order | 18 |
Data Storage Type | NUMBER |
Max Length | 3 |
Min Length | |
Required | No |
Primary Key | No |
Precision | |
Scale | |
Status | Active |
Description |
Percentage of shrimp in tank burrowed (more than half beneath substrate) |
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Child Items
Rubric scores updated every 15m
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Related Items
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Catalog Details
Catalog Item ID | 33875 |
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Metadata Record Created By | David Huddleston |
Metadata Record Created | 2016-08-01 10:47+0000 |
Metadata Record Last Modified By | SysAdmin InPortAdmin |
» Metadata Record Last Modified | 2022-08-09 17:11+0000 |
Metadata Record Published | 2021-10-21 |
Owner Org | SEFSC |
Metadata Publication Status | Published Externally |
Do Not Publish? | N |
Metadata Workflow State | Published / External |
Metadata Last Review Date | 2021-10-21 |
Metadata Review Frequency | 1 Year |
Metadata Next Review Date | 2022-10-21 |
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