Short Citation:
Southeast Fisheries Science Center, 2020: Simulating environmental effects on brown shrimp production in the northern Gulf of Mexico, https://www.fisheries.noaa.gov/inport/item/30671.

Item Identification

Title: Simulating environmental effects on brown shrimp production in the northern Gulf of Mexico
Status: In Work
Abstract:

Brown shrimp (Farfantepenaeus aztecus) are a commercially important fishery species of the northern Gulf of Mexico. Young shrimp settle in estuarine salt marsh habitats during the juvenile phase of their life history, and processes that occur during their residency affect growth, survival, and recruitment of sub-adults to the fishery. We developed an agent based model that simulates the cumulative effects of temperature, salinity, and access to emergent marsh vegetation on juvenile brown shrimp growth and survival. Our model is spatially articulate, with three habitat types and three salinity zones it functions on an hourly time step to track growth and survival of shrimp super-individuals from recruitment into the shallow nursery habitats at 10 mm total length until they reach 70 mm and move into deeper bay water. We have compared our modeled shrimp production with various abundance and biomass data from fishery independent surveys. Preliminary analysis shows similarities in seasonal patterns, but annual variability in resource survey data appears higher than our modeled estimates. We are continuing to explore larval recruitment patterns and trophic interactions as possible interacting factors. Ultimately, we hope to use inter-annual variability in production estimates to reduce uncertainty in the current stock assessment model used by the US National Marine Fisheries Service.

Purpose:

To better understand and forecast brown shrimp production in the northern Gulf of Mexico.

Physical Location

Organization: Southeast Fisheries Science Center
City: Miami
State/Province: FL
Country: USA
Location Description:

Location Of The Main Office Of The South East Fisheries Science Center

Data Set Information

Data Set Scope Code: Data Set
Data Presentation Form: Document (digital)

Support Roles

Data Steward

CC ID: 301109
Date Effective From: 2011
Date Effective To:
Contact (Person): Leo, Jennifer
Address: 4700 Avenue U
Galveston, TX
Email Address: jennifer.leo@noaa.gov
Phone: 409-766-3500

Distributor

CC ID: 281520
Date Effective From: 2011
Date Effective To:
Contact (Organization): Southeast Fisheries Science Center (SEFSC)
Address: 75 Virginia Beach Drive
Miami, FL 33149
USA
Phone: (305)361-5761
URL: https://www.fisheries.noaa.gov/about/southeast-fisheries-science-center
Business Hours: 8:00 a.m. - 4:30 p.m. EST

Metadata Contact

CC ID: 281521
Date Effective From: 2011
Date Effective To:
Contact (Person): Leo, Jennifer
Address: 4700 Avenue U
Galveston, TX
Email Address: jennifer.leo@noaa.gov
Phone: 409-766-3500
Contact Instructions:

Contact by email preferred.

Point of Contact

CC ID: 276591
Date Effective From: 2011
Date Effective To:
Contact (Person): Baumer, Tim J
Address: 4700 Avenue U
Galveston, TX 77551
Email Address: tim.baumer@noaa.gov
Phone: 409-766-3784
Contact Instructions:

Contact by email preferred.

Extents

Extent Group 1

Extent Group 1 / Geographic Area 1

CC ID: 276594
W° Bound: -95.09903
E° Bound: -94.41891
N° Bound: 29.589704
S° Bound: 29.180167
Description

Gulf Of Mexico

Extent Group 1 / Time Frame 1

CC ID: 276593
Time Frame Type: Discrete
Start: 2011

Access Information

Security Class: Unclassified
Data Access Procedure:

The data will be available from a public web server once an access methodology has been developed.

Data Access Constraints:

N/A

Data Quality

Quality Control Procedures Employed:

Each sample was assigned a unique identification code. Field collected samples were tagged redundantly (e.g. one label inside of the collection vessel and a matching label attached to the outside of the vessel). The identifier and its associated information (e.g. date, location, habitat) was recorded on field data sheets. Once a sample arrived at the laboratory, the label remained with the sample throughout the various stages of sample processing. After data were entered into an Excel spreadsheet or similar database file, the information was printed out and compared against the field data sheets by two biologists. Corrections were made at this time and saved. The electronic file was also sorted and examined by the Lab Supervisor or other project personnel in a variety of ways to look for outliers, missing data, and other potential errors.

Data Management

Have Resources for Management of these Data Been Identified?: No
Approximate Percentage of Budget for these Data Devoted to Data Management: 0
Do these Data Comply with the Data Access Directive?: No
Is Access to the Data Limited Based on an Approved Waiver?: No
If Distributor (Data Hosting Service) is Needed, Please Indicate: No
Approximate Delay Between Data Collection and Dissemination: 365
If Delay is Longer than Latency of Automated Processing, Indicate Under What Authority Data Access is Delayed:

N/A

Actual or Planned Long-Term Data Archive Location: To Be Determined
If To Be Determined, Unable to Archive, or No Archiving Intended, Explain:

The archival process is currently under development.

Approximate Delay Between Data Collection and Archiving: 365
How Will the Data Be Protected from Accidental or Malicious Modification or Deletion Prior to Receipt by the Archive?:

The data resides on a secure government network requiring multi-factor authentication for network access.

Lineage

Process Steps

Process Step 1

CC ID: 281526
Description:

After sample collection, field data were entered into an Excel spreadsheet or database file (DBF) using database manager software. A text file was created to describe these data and associated variables. Entered data were checked against the field sheets by two biologists to minimize entry errors. Samples were processed in the laboratory, sorted, specimens identified and measured, and information was entered into an Excel spreadsheet or DBF file. Files were printed out and compared against original data sheets by two biologists for data entry errors. Corrections were made at this time, the electronic file was saved, and a back-up copy made. Hard copies of the QCd files were printed and stored in the project folder along with the original field and laboratory data sheets. The electronic file was also sorted and examined by the Lab Supervisor or other project personnel in a variety of ways to look for outliers, missing data, and other potential errors. Verified data files were then saved electronically on the Galveston Laboratory server and backed-up as needed.

Catalog Details

Catalog Item ID: 30671
Metadata Record Created By: Carlos Rivero
Metadata Record Created: 2016-02-11 06:54+0000
Metadata Record Last Modified By: SysAdmin InPortAdmin
Metadata Record Last Modified: 2020-05-04 14:58+0000
Metadata Record Published: 2016-03-16
Owner Org: SEFSC
Metadata Publication Status: Published Externally
Do Not Publish?: N
Metadata Next Review Date: 2017-03-17