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Short Citation:
Alaska Fisheries Science Center, 2023: AFSC/ABL: Female Giant Grenadier maturity,

Item Identification

Title: AFSC/ABL: Female Giant Grenadier maturity
Short Name: AFSC/ABL: Female Giant Grenadier maturity
Publication Date: Unknown

Giant grenadiers Albatrossia pectoralis are caught as bycatch in deep-sea commercial fisheries in relatively large numbers. The population appears to be stable, although there is no directed fishery, catch limits, or reporting requirements. The purpose of our study was to describe and quantify the reproductive life history characteristics and natural mortality of female giant grenadiers. During the summers of 2004 and 2006, a total of 338 specimens were collected from the Gulf of Alaska. Every phase of reproductive development was found, suggesting a protracted annual spawning season. An ovarian wall thickness technique was used to successfully place 31% (n 24) of the fish with an unknown maturity status into a known category. Female age at 50% maturity was 22.9 years, and preanal fin length at 50% maturity was 26 cm. Total fecundity ranged from 35,000 to 231,000 oocytes (mean106,761), with a mean mature oocyte diameter of 1.26 mm. We developed a new technique for preparing otoliths for age determination by grinding off the distal surface to elucidate the growth zones; age ranged from 14 to 58 years. Estimates of natural female mortality ranged from 0.052 to 0.079 and estimates of total female mortality from 0.061 to 0.149. This life history information will be essential for future management of giant grenadier populations in the North Pacific Ocean.


This dataset contains information on giant genadier maturity and reproduction.


Loaded by batch 3847, 12-17-2012 19:16


Theme Keywords

Thesaurus Keyword
ISO 19115 Topic Category
None deep-water
None female
None histology
None macrouridae
None maturity
None natural mortality
None ovarian development

Spatial Keywords

Thesaurus Keyword
Geographic Names Information System Alaska
Geographic Names Information System Gulf of Alaska
Geographic Names Information System Southeast Alaska

Physical Location

Organization: Auke Bay Laboratories
City: Juneau
State/Province: AK
Country: US

Data Set Information

Data Set Scope Code: Data Set
Data Set Type: MS Excel Spreadsheet
Maintenance Frequency: None Planned
Data Presentation Form: Document (digital)

Support Roles

Data Steward

CC ID: 230490
Date Effective From: 2015-10-07
Date Effective To:
Contact (Person): Rodgveller, Cara
Email Address:


CC ID: 81198
Date Effective From: 2012-12-17
Date Effective To:
Contact (Person): Rodgveller, Cara
Email Address:

Metadata Contact

CC ID: 81196
Date Effective From: 2012-12-17
Date Effective To:
Contact (Person): MC, Metadata Coordinators
Email Address:


CC ID: 81199
Date Effective From: 2012-12-17
Date Effective To:
Contact (Person): Rodgveller, Cara
Email Address:

Point of Contact

CC ID: 81197
Date Effective From: 2012-12-17
Date Effective To:
Contact (Person): Rodgveller, Cara
Email Address:


Currentness Reference: Ground Condition

Extent Group 1

Extent Group 1 / Geographic Area 1

CC ID: 81195
W° Bound: -151
E° Bound: -133
N° Bound: 59.5
S° Bound: 54

Gulf of Alaska and Southeast Alaska

Extent Group 1 / Time Frame 1

CC ID: 81194
Time Frame Type: Range
Start: 2006
End: 2008

Access Information

Security Class: Unclassified
Data Access Procedure:


Data Access Constraints:

Contact the Point of Contact for data request form.

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.

Distribution Information

Distribution 1

CC ID: 233596
Download URL:

NCEI to be determined

Note: Dataset migrated by Dan Woodrich (AFSC data management coordinator) on 12/14/2021. Contact:

Data Quality

Completeness Report:


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
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 cite 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 Statement:

Contact the dataset POC for full methodology

Catalog Details

Catalog Item ID: 17227
GUID: gov.noaa.nmfs.inport:17227
Metadata Record Created By: Doug Turnbull
Metadata Record Created: 2012-12-17 19:16+0000
Metadata Record Last Modified By: SysAdmin InPortAdmin
Metadata Record Last Modified: 2023-05-30 18:10+0000
Metadata Record Published: 2016-05-05
Owner Org: AFSC
Metadata Publication Status: Published Externally
Do Not Publish?: N
Metadata Last Review Date: 2016-05-05
Metadata Review Frequency: 1 Year
Metadata Next Review Date: 2017-05-05