Short Citation:
Alaska Fisheries Science Center, 2021: AFSC/ABL: Deep-Water Longline Survey for Giant Grenadier and Sablefish in the Western Gulf of Alaska, https://www.fisheries.noaa.gov/inport/item/17234.

Item Identification

Title: AFSC/ABL: Deep-Water Longline Survey for Giant Grenadier and Sablefish in the Western Gulf of Alaska
Short Name: AFSC/ABL: Deep-Water Longline Survey for Giant Grenadier and Sablefish in the Western Gulf of Alaska
Status: Completed
Publication Date: Unknown
Abstract:

An experimental bottom longline survey was conducted at depths >1,000 m in the western Gulf of Alaska in August 2008. The objective was to investigate the abundance and biological characteristics of giant grenadier (Albatrossia pectoralis) and sablefish (Anoplopoma fimbria) in deep waters of the Gulf of Alaska that have not been previously sampled in fishery surveys. Several difficulties were encountered during the fishing operations which indicate special problems may occur when fishing longlines at these depths, including substantial gear drift after setting and hang-ups on the bottom that caused the longline to part. Although results were not conclusive because only stations in the western Gulf of Alaska were sampled, there was consistency in the results which provides an indication of fish abundance and distribution in depths >1,000 m. Catch rates of giant grenadier were relatively high, although not as large as those in nearby longline survey stations in depths <1,000 m. Female giant grenadier were much larger in size at the deep-water stations, and their weight averaged 69% greater than females at depths <1,000 m. Males, which comprise a low percentage of the catch in shallower water, were caught in much higher numbers at the deep-water stations. Catch rates for sablefish at the deep-water stations were extremely low, and it appears abundance of sablefish is negligible in the western Gulf of Alaska at depths >1,000 m. Besides giant grenadier, Pacific grenadier (Coryphaenoides acrolepis) was the only other species caught in substantial numbers. At one deep-water station, Pacific grenadier were extremely abundant and were caught on 56% of the longlines hooks.

Purpose:

This dataset contains data from the Deep-Water longline surveys

Notes:

Loaded by batch 3852, 12-18-2012 17:31

Keywords

Theme Keywords

Thesaurus Keyword
UNCONTROLLED
ISO 19115 Topic Categories 002
ISO 19115 Topic Categories biota
ITIS Albatrossia pectoralis
ITIS Anoplopoma fimbria
ITIS giant grenadier
ITIS sablefish
None deep-water
None longline

Spatial Keywords

Thesaurus Keyword
UNCONTROLLED
Geographic Names Information System Alaska
Geographic Names Information System Gulf of 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: Files
Maintenance Frequency: None Planned
Data Presentation Form: Document (digital)

Support Roles

Data Steward

CC ID: 230492
Date Effective From: 2015-10-07
Date Effective To:
Contact (Person): Rodgveller, Cara
Email Address: cara.rodgveller@noaa.gov

Distributor

CC ID: 81474
Date Effective From: 2012-12-18
Date Effective To:
Contact (Person): Rodgveller, Cara
Email Address: cara.rodgveller@noaa.gov

Metadata Contact

CC ID: 81476
Date Effective From: 2012-12-18
Date Effective To:
Contact (Person): MC, Metadata Coordinators
Email Address: AFSC.metadata@noaa.gov

Originator

CC ID: 81475
Date Effective From: 2012-12-18
Date Effective To:
Contact (Person): Rodgveller, Cara
Email Address: cara.rodgveller@noaa.gov

Point of Contact

CC ID: 81473
Date Effective From: 2012-12-18
Date Effective To:
Contact (Person): Rodgveller, Cara
Email Address: cara.rodgveller@noaa.gov

Extents

Currentness Reference: Ground Condition

Extent Group 1

Extent Group 1 / Geographic Area 1

CC ID: 81472
W° Bound: -165.7833
E° Bound: -161.95
N° Bound: 53.91667
S° Bound: 53.46667
Description

Gulf of Alaska

Extent Group 1 / Time Frame 1

CC ID: 81471
Time Frame Type: Range
Start: 2008
End: 2008

Access Information

Security Class: Unclassified
Data Access Procedure:

N/A

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: 233597
Download URL: https://noaa-fisheries-afsc.data.socrata.com/dataset/AFSC-ABL-Deep-Water-Longline-Survey-for-Giant-Gren/fnns-n4vb
Distributor:
Description:

NCEI to be determined

Technical Environment

Description:

Microsoft Access

Data Quality

Completeness Report:

None

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

Lineage Statement:

Contact the dataset POC for full methodology

Catalog Details

Catalog Item ID: 17234
Metadata Record Created By: Doug Turnbull
Metadata Record Created: 2012-12-18 17:31+0000
Metadata Record Last Modified By: SysAdmin InPortAdmin
Metadata Record Last Modified: 2019-06-04 13:14+0000
Metadata Record Published: 2016-05-05
Owner Org: AFSC
Metadata Publication Status: Published Externally
Do Not Publish?: N
Metadata Next Review Date: 2017-05-06