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Physical Location
Project Info
Support Roles
Access Info
Tech Environment
Data Quality
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Catalog Details


Project Information

Project Type

Mandated By
Atlantic HMS FMP

Collection Type

Collection Method
Biological Samples, Paper, Electronic

Child Items

Type Title
Data Set ROUNDSCALE SPEARFISH general morphometric data

Contact Information

No contact information is available for this record.

Please contact the owner organization (SEFSC) for inquiries on this record.


Geographic Area 1

-78° W, -42° E, 46° N, 18° S

Time Frame 1
1996 - 2007

Item Identification

Title: Roundscale Spearfish (Tetrapturus georgii) morphometric data
Short Name: Roundscale spearfish morphology
Status: Completed
Other Citation Details:

Beerkircher et al. 2008. Roundscale spearfish Tetrapturus georgii (Lowe, 1840); updated morphology, distribution, and relative abundance in the western North Atlantic. NOAA Tech. Memo NMFS-SEFSC-571


Theme Keywords

Thesaurus Keyword
None abundance
None billfish
None distribution
None morphology
None morphometrics
None Spearfish

Spatial Keywords

Thesaurus Keyword
None northwestern Atlantic

Physical Location

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


Project Information

Project Type: Collection
Is Mandated?: Yes
Mandated By: Atlantic HMS FMP
Collection Type: Observer
Collection Authority: Federal
Collection Method: Biological Samples, Paper, Electronic

Support Roles


CC ID: 211370
Date Effective From: 2004-07-01
Date Effective To:
Contact (Person): Beerkircher, Larry
Address: 75 Virginia Beach Drive
Miami, FL 33149
Email Address:
Phone: 305-361-4290
Contact Instructions:

Email best. Office phone is 305-361-4290

View Historical Support Roles


Currentness Reference: Ground Condition

Extent Group 1

Extent Group 1 / Geographic Area 1

CC ID: 211372
W° Bound: -78
E° Bound: -42
N° Bound: 46
S° Bound: 18

Extent Group 1 / Time Frame 1

CC ID: 211373
Time Frame Type: Range
Start: 1996
End: 2007

Access Information

Security Class: Confidential
Security Classification System:

Only available to those with a valid non-disclosure agreement in place with the SEFSC.

Security Handling Description:

Any paper copies of data set must be keep in a locked storage cabinet accessible only to NDA holder, within a locked office or lab that is accessible only to a limited number of the NDA holder's associates. Electronic copies of the data must be stored on a PC that is password protected/restricted to the NDA holder and located in a locked office or lab that is accessible only to a limited number of the NDA holder's associates. Alternatively the data can be stored on an oracle type data storage with access to the system restricted and access to the specific data table/tables restricted to the NDA holder.

Data Access Policy:

Need SEFSC NDA. NDAs can only be granted to NOAA employees, contractors, or grantee's with a need for the data.

Data Access Procedure:

Contact data steward Beerkircher or SEFSC Miami Laboratory Fisheries Statistics Division Chief.

Data Access Constraints:

None for NDA holders with a specific need for the data. No access permitted for non NDA holders. Aggregated data may be available, contact data steward.

Data Use Constraints:

Usually defined in the NDA. Publicly available research results must conform to current aggregation procedures (rule of three).

Metadata Access Constraints:


Metadata Use Constraints:




CC ID: 232554
URL Type:
Online Resource
File Resource Format: pdf

Beerkircher, Lawrence, Dennis Lee, and Georg Hinteregger. 2008. Roundscale Spearfish (Lowe, 1840); Updated Morphology, Distribution, and Relative Abundance in the Western North Atlantic.Miami, FL. NOAA Technical Memorandum NMFS-SEFSC-571, 23 p. TM.


CC ID: 232568
URL Type:
Online Resource
File Resource Format: pdf

Rivas, L.R. (1956) Definitions and methods of measuring and counting in the billfishes (Istiophoridae, Xiphidae). Bull. Mar. Sci. Gulf. Caribb. 6: 18-27.

This document describes in detail methods to measure morphological traits on billfishes. These methods were used in the data described by this metadata record.

Technical Environment


Excel file working_master_data.xlsx 144KB

Data Quality


Unknown. Likely only representative of the roundscale spearfish captured at these times and places by PLL vessels.


Nothing is known about the degree of agreement between individual measurements in the POPOL data set and the true measurements, as the observer collecting the data is the sole source of the information and it cannot be cross checked with alternate sources. Laboratory measurements are assumed accurate; although this assumption was never validated.

Analytical Accuracy:

See above. The accuracy of analytical results to the “true” values cannot be determined as the true values cannot be calculated without 100 % observer coverage and multiple observers on each vessel. Neither situation has ever occurred during collection of POPOL data.

Quantitation Limits:

No limits. The species size range captured on board pelagic longline vessels can be easily measured by observers with standard hand measuring devices.


There have been no quantitative studies to detect potential bias in POPOL.


There are no known comparable data sets.

Completeness Measure:

Only dead specimens could be measured; observations of live roundscale spearfish did not include the complete detailed measurements.


A hand centimeter measuring tool, collecting data to the nearest centimeter, can be expected to be very precise.

Analytical Precision:

No information available.

Field Precision:

No information available.


No information available.

Detection Limit:

See above, specimen needed to be dead and brought on board by the crew in order for the observer to take the complete data needed.

Completeness Report:

No information available.

Conceptual Consistency:

No information available.

Quality Control Procedures Employed:

No information available.


POPOL Pelagic Observer Program Online
RSSP roundscale spearfish
SEFSC Southeast Fisheries Science Center

Child Items

Rubric scores updated every 15m

Rubric Score Type Title
Data Set ROUNDSCALE SPEARFISH general morphometric data

Catalog Details

Catalog Item ID: 26097
GUID: gov.noaa.nmfs.inport:26097
Metadata Record Created By: Lee M Weinberger
Metadata Record Created: 2015-07-24 15:22+0000
Metadata Record Last Modified By: SysAdmin InPortAdmin
Metadata Record Last Modified: 2022-08-09 17:11+0000
Metadata Record Published: 2021-05-06
Owner Org: SEFSC
Metadata Publication Status: Published Externally
Do Not Publish?: N
Metadata Last Review Date: 2021-05-06
Metadata Review Frequency: 1 Year
Metadata Next Review Date: 2022-05-06