Short Citation:
Southeast Fisheries Science Center, 2021: Fishery-independent Surveys of Queen Conch in St. Croix 2010-2011, https://www.fisheries.noaa.gov/inport/item/30682.

Item Identification

Title: Fishery-independent Surveys of Queen Conch in St. Croix 2010-2011
Status: Completed
Abstract:

We examined queen conch populations on the northeastern coast of St. Croix, U.S. Virgin Islands, using a radial survey sampling technique with sample sites stratified by depth, habitat type, and management regime, encompassing both open and closed fishing areas. We completed 503 radial surveys and located 4773 conch, representing a cumulative density of approximately 302 conch per hectare. Densities of juvenile conch were highest in 5090 patchy seagrass beds in Buck Island Reef National Monument (BIRNM) due to high numbers of small 79 cm conch. Overall length frequencies showed a bimodal distribution, driven largely by juvenile conch found within the BIRNM. Length distributions by habitat were variable but showed a trend toward larger conch in reef, macroalgae, and sand habitats compared to a more even distribution in seagrass. Densities of adults were highest inside the BIRNM in 1050 patchy seagrass where several conch were observed mating and laying egg masses.

Purpose:

To determine densities of queen conch on the northeastern coast of St. Croix from fishery-independent surveys to enhance stock assessment efforts.

Keywords

Theme Keywords

Thesaurus Keyword
UNCONTROLLED
None Queen Conch

Temporal Keywords

Thesaurus Keyword
UNCONTROLLED
None 2010-2011

Spatial Keywords

Thesaurus Keyword
UNCONTROLLED
None St. Croix

Physical Location

Organization: Galveston Laboratory
City: Galveston
State/Province: TX

Data Set Information

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

Support Roles

Data Steward

CC ID: 281618
Date Effective From: 2010
Date Effective To:
Contact (Person): Doerr, Jennifer
Address: 4700 Avenue U
Galveston, TX 77551
Email Address: jennifer.doerr@noaa.gov
Phone: 409-766-3705
Fax: 409-766-3520
Contact Instructions:

Contact by email preferred.

Distributor

CC ID: 281619
Date Effective From: 2010
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
Contact Instructions:

Contact by email preferred.

Metadata Contact

CC ID: 276722
Date Effective From: 2010
Date Effective To:
Contact (Person): Doerr, Jennifer
Address: 4700 Avenue U
Galveston, TX 77551
Email Address: jennifer.doerr@noaa.gov
Phone: 409-766-3705
Fax: 409-766-3520
Contact Instructions:

Contact by email preferred.

Point of Contact

CC ID: 281621
Date Effective From: 2010
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

Currentness Reference: Ground Condition

Extent Group 1

Extent Group 1 / Geographic Area 1

CC ID: 276726
W° Bound: -64.7
E° Bound: -64.57
N° Bound: 17.81
S° Bound: 17.52
Description

Caribbean Sea

Extent Group 1 / Time Frame 1

CC ID: 276725
Time Frame Type: Range
Start: 2010
End: 2011

Access Information

Security Class: Unclassified
Data Access Policy:

Available to fishery scientists and qualified researchers upon request.

Data Access Procedure:

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

Data Access Constraints:

None

Data Use Constraints:

The National Marine Fisheries Service (NMFS) does not approve, recommend, or endorse any proprietary product or proprietary material contained in this data set. The NMFS Galveston Laboratory Fishery Ecology Branch compiled these data sets in order to develop a scientific basis for refining essential fish habitat designations for future amendments to fishery management plans. NMFS is not responsible for any uses of these data sets beyond those for which they were intended, and NMFS makes no claims regarding the accuracy of any data provided by agencies or individuals outside NMFS.

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: 281625
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: 30682
Metadata Record Created By: Carlos Rivero
Metadata Record Created: 2016-02-11 06:54+0000
Metadata Record Last Modified By: Lee M Weinberger
Metadata Record Last Modified: 2021-10-21 10:06+0000
Metadata Record Published: 2021-10-21
Owner Org: SEFSC
Metadata Publication Status: Published Externally
Do Not Publish?: N
Metadata Next Review Date: 2022-10-22