AFSC/ABL: NPRB project 1106 Improved aging estimates for spiny dogfish
Alaska Fisheries Science Center
Data Set
(DS)
| ID: 24030
| Published / External
Created: 2015-03-16
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Last Modified: 2023-05-30
Project (PRJ) | ID: 12324
ID: 24030
Data Set (DS)
* Discovery• First Pass
» Metadata Rubric
Item Identification
| * » Title | AFSC/ABL: NPRB project 1106 Improved aging estimates for spiny dogfish |
|---|---|
| Short Name | AFSC/ABL: NPRB project 1106 Improved aging estimates for spiny dogfish |
| * Status | Completed |
| Creation Date | |
| Revision Date | |
| • Publication Date | Unknown |
| * » Abstract |
The spiny dogfish (Squalus suckleyi, formerly Squalus acanthias, Ebert et al. 2010) is a small, long-lived and slow-growing shark, which is vulnerable to overfishing. Current methods for aging spiny dogfish are based on reading annuli from dorsal fin spines, which erode and may break. For the past 30 years, scientists have used an exponential relationship between the diameter of the spine and the number of annuli to estimate the number of missing annuli. Coupled with between-reader imprecision (CV = 19%), errors in estimation of worn annuli introduce uncertainty and bias into the aging process, resulting in large confidence intervals and imprecise growth, mortality, and recruitment estimates necessary for stock assessments. Using spines and vertebrae collected from spiny dogfish in the Gulf of Alaska, we aged the spines using conventional methods and vertebrae using the vertebral method. Data presented here includes the sample collection information, raw spine and vertebrae age read data and final annuli counts calculated from the multiple reads. This project was funded by NPRB and was a collaborative work between: AFSC age and growth lab, WA Dept Fish and Wildlife, NWFSC age and growth lab, Dr. Walter Bubley and UAF, and Bechtol Research |
| * Purpose |
This dataset contains information gathered while improving aging estimates. |
| Notes |
Loaded by FGDC Metadata Uploader, batch 5636, 03-16-2015 18:58 The following FGDC sections are not currently supported in InPort, but were preserved and will be included in the FGDC export: - Taxonomy (FGDC:taxonomy) - Lineage (FGDC:lineage) |
| Other Citation Details | |
| • Supplemental Information | |
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Keywords
Theme Keywords
| Thesaurus | Keyword |
|---|---|
| ISO 19115 Topic Category | biota |
| None | age |
| None | growth |
Temporal Keywords
| Thesaurus | Keyword |
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* Spatial Keywords
| Thesaurus | Keyword |
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| Geographic Names Information System | Alaska |
| Geographic Names Information System | Gulf of Alaska |
| Geographic Names Information System | Southeast Alaska |
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Physical Location
| • » Organization | Auke Bay Laboratories |
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| • » City | Juneau |
| • » State/Province | AK |
| • Country | US |
| • » Location Description |
Data Set Information
| * Data Set Scope Code | Data Set |
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| • Data Set Type | |
| • Maintenance Frequency | As Needed |
| Maintenance Note | |
| » Data Presentation Form | maps and data |
| • Entity Attribute Overview | |
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| Distribution Liability |
NPRB: No warranty expressed or implied is made regarding the accuracy utility of the data, nor shall the act of distribution constitute any such warranty. This disclaimer applies both to individual use of the data and aggregate use with other data. It is strongly recommended that careful attention be paid to the contents of the metadata file associated with the data. The NPRB shall not be held liable for improper or incorrect use of the data described or contained herein. |
| Data Set Credit | NPRB |
Support Roles
| * » Support Role | Data Set Credit |
|---|---|
| * » Date Effective From | 2015-03-16 |
| Date Effective To | |
| Organization | North Pacific Research Board (NPRB) |
| Address |
1007 West 3rd Avenue, Suite 100 Anchorage, AK 99501 USA |
| Email Address | |
| Phone | 907 644 6700 |
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| URL | http://www.nprb.org/index.html |
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| Contact Instructions |
| * » Support Role | Data Steward |
|---|---|
| * » Date Effective From | 2015-03-16 |
| Date Effective To | |
| Person | Tribuzio, Cindy |
| Email Address | cindy.tribuzio@noaa.gov |
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| * » Support Role | Distributor |
|---|---|
| * » Date Effective From | 2015-03-16 |
| Date Effective To | |
| Person | Tribuzio, Cindy |
| Email Address | cindy.tribuzio@noaa.gov |
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| * » Support Role | Metadata Contact |
|---|---|
| * » Date Effective From | 2015-03-16 |
| Date Effective To | |
| Person | MC, Metadata Coordinators |
| Email Address | AFSC.metadata@noaa.gov |
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| * » Support Role | Originator |
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| * » Date Effective From | 2015-03-16 |
| Date Effective To | |
| Person | Tribuzio, Cindy |
| Email Address | cindy.tribuzio@noaa.gov |
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| * » Support Role | Point of Contact |
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| * » Date Effective From | 2015-03-16 |
| Date Effective To | |
| Person | Tribuzio, Cindy |
| Email Address | cindy.tribuzio@noaa.gov |
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Extents
| Currentness Reference | Ground Condition |
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Extent Group 1
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Extent Group 1 / Geographic Area 1
| * » W° Bound | -168.68 |
|---|---|
| * » E° Bound | -122.38 |
| * » N° Bound | 60.25 |
| * » S° Bound | 47.46 |
| * » Description |
Gulf of Alaska and Southeast Alaska |
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Extent Group 1 / Time Frame 1
| * » Time Frame Type | Range |
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| * » Start | 2011 |
| End | 2015-01-30 |
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| * » Security Class | Unclassified |
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| » Data Access Procedure |
N/A |
| • » Data Access Constraints |
There are no legal restrictions on access to the data. They reside in public domain and can be freely distributed. |
| • Data Use Constraints |
User must read and fully comprehend the metadata prior to use. Data should not be used beyond the limits of the source scale. Acknowledgement of NOAA, as the source from which these data were obtained, in any publications and/or other representations of these data is suggested. |
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Distribution Information
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| » Download URL | https://console.cloud.google.com/storage/browser/nmfs_odp_afsc/ABL/NPRB%20project%201106%20Improved%20aging%20estimates%20for%20spiny%20dogfish_ID_24030 |
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Note: Dataset migrated by Dan Woodrich (AFSC data management coordinator) on 12/16/2021. Contact: Daniel.woodrich@noaa.gov |
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| Conceptual Consistency |
Contact POC for further information |
| » Quality Control Procedures Employed |
Contact the dataset POC for full QA/QC methodology |
Data Management
| » Have Resources for Management of these Data Been Identified? | Yes |
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| » Approximate Percentage of Budget for these Data Devoted to Data Management | Unknown |
| » Do these Data Comply with the Data Access Directive? | Yes |
| » Is Access to the Data Limited Based on an Approved Waiver? | No |
| » If Distributor (Data Hosting Service) is Needed, Please Indicate | yes |
| » Approximate Delay Between Data Collection and Dissemination | unknown |
| » If Delay is Longer than Latency of Automated Processing, Indicate Under What Authority Data Access is Delayed |
no delay |
| » Actual or Planned Long-Term Data Archive Location | To Be Determined |
| » If To Be Determined, Unable to Archive, or No Archiving Intended, Explain |
NCEI site yet to be determined |
| » Approximate Delay Between Data Collection and Archiving | unknown |
| » How Will the Data Be Protected from Accidental or Malicious Modification or Deletion Prior to Receipt by the Archive? |
IT Security and Contingency Plan for the system establishes procedures and applies to the functions, operations, and resources necessary to recover and restore data as hosted in the Western Regional Support Center in Seattle, Washington, following a disruption. |
Lineage
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Rubric scores updated every 15m
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Catalog Details
| Catalog Item ID | 24030 |
|---|---|
| Metadata Record Created By | Emily A Fergusson |
| Metadata Record Created | 2015-03-16 18:38+0000 |
| Metadata Record Last Modified By | SysAdmin InPortAdmin |
| » Metadata Record Last Modified | 2023-05-30 18:10+0000 |
| Metadata Record Published | 2016-05-18 |
| Owner Org | AFSC |
| Metadata Publication Status | Published Externally |
| Do Not Publish? | N |
| Metadata Workflow State | Published / External |
| Metadata Last Review Date | 2016-05-18 |
| Metadata Review Frequency | 1 Year |
| Metadata Next Review Date | 2017-05-18 |
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