Search Help Show/Hide Menu
Summary
Item Identification
Keywords
Physical Location
Data Set Info
Support Roles
Extents
Access Info
Distribution Info
Tech Environment
Data Quality
Data Management
Lineage
Catalog Details

Summary

Short Citation
Alaska Fisheries Science Center, 2024: AFSC/RACE/EcoFOCI: NPRB project number 926: Assessing the condition of walleye pollock, Theragra chalcogramma, larvae in the eastern Bering Sea with muscle-based flow cytometry cell cycle analysis, https://www.fisheries.noaa.gov/inport/item/12673.
Full Citation Examples

Abstract

Walleye pollock are an important component of the eastern Bering Sea ecosystem due to their vast numbers and biomass and are of great commercial importance. Their recruitment in the eastern Bering Sea is not well understood but it is largely determined during the first year, so the larval stage may play a significant role. Starvation may contribute to the high and variable mortality that occurs during the larval stage so it is important to monitor and quantify it. This metadata describes data from laboratory and field studies conducted from 2009 to 2012 for NPRB project 926. The project completed the development of an assay using flow cytometric cell cycle analysis to assess the physiological condition of walleye pollock larvae, and applied it to field collected specimens. The use of RNA to improve the accuracy of the assay was also investigated, as well as the relationship between flow cytometric measurements and growth.

Results showed that the overall classification accuracy of the assay (healthy or unhealthy) ranged between 75 and 83% depending on the type of cross-validation testing. A nuclear RNA variable (the ratio of the number of S phase nuclei to the number of high nuclear RNA content G1 phase nuclei) improved overall classification accuracy by 11% compared to a model without it. Unhealthy walleye pollock larvae were present in the southeastern Bering Sea in 2009, and this was most likely the result of cold environmental conditions affecting prey availability and larval feeding. In 2010, no unhealthy larvae were detected. This may be the result of less spatial coverage and smaller collections of larvae than in 2009, given that the environmental conditions were similar between years.

Distribution Information

Access Constraints:

Contact Point Of Contact for data request form.

Use Constraints:

User must read and fully comprehend the metadata prior to use. Applications or inferences derived from the data should be carefully considered for accuracy. Acknowledgement

of NOAA/NMFS/AFSC, as the source from which these data were obtained in any publications and/or other representations of these, data is suggested.

Controlled Theme Keywords

biota

Child Items

No Child Items for this record.

Contact Information

Point of Contact
Kimberly Bahl
kimberly.bahl@noaa.gov
206 526 4314

Metadata Contact
Kimberly Bahl
kimberly.bahl@noaa.gov
206 526 4314

Extents

Geographic Area 1

-171.1° W, -163.3° E, 57.4° N, 54.3° S

Bering Sea

Time Frame 1
2009 - 2012

Item Identification

Title: AFSC/RACE/EcoFOCI: NPRB project number 926: Assessing the condition of walleye pollock, Theragra chalcogramma, larvae in the eastern Bering Sea with muscle-based flow cytometry cell cycle analysis
Short Name: AFSC/RACE/EcoFOCI: NPRB project 926: Assessing the condition of walleye pollock, Theragra chalcogramma, larvae in the eastern Bering Sea with muscle-based flo
Status: Completed
Abstract:

Walleye pollock are an important component of the eastern Bering Sea ecosystem due to their vast numbers and biomass and are of great commercial importance. Their recruitment in the eastern Bering Sea is not well understood but it is largely determined during the first year, so the larval stage may play a significant role. Starvation may contribute to the high and variable mortality that occurs during the larval stage so it is important to monitor and quantify it. This metadata describes data from laboratory and field studies conducted from 2009 to 2012 for NPRB project 926. The project completed the development of an assay using flow cytometric cell cycle analysis to assess the physiological condition of walleye pollock larvae, and applied it to field collected specimens. The use of RNA to improve the accuracy of the assay was also investigated, as well as the relationship between flow cytometric measurements and growth.

Results showed that the overall classification accuracy of the assay (healthy or unhealthy) ranged between 75 and 83% depending on the type of cross-validation testing. A nuclear RNA variable (the ratio of the number of S phase nuclei to the number of high nuclear RNA content G1 phase nuclei) improved overall classification accuracy by 11% compared to a model without it. Unhealthy walleye pollock larvae were present in the southeastern Bering Sea in 2009, and this was most likely the result of cold environmental conditions affecting prey availability and larval feeding. In 2010, no unhealthy larvae were detected. This may be the result of less spatial coverage and smaller collections of larvae than in 2009, given that the environmental conditions were similar between years.

Purpose:

To complete the development of an assay to assess the physiological condition of walleye pollock larvae using flow cytometric cell cycle analysis, and to apply it to field collected .

Notes:

Loaded by batch 3300, 07-23-2012 13:28

Keywords

Theme Keywords

Thesaurus Keyword
ISO 19115 Topic Category
biota
UNCONTROLLED
PARR Exclusion Non-Federal Funding
None flow cytometry
None larvae
None physiological condition

Spatial Keywords

Thesaurus Keyword
UNCONTROLLED
None Alaska
None Bering Sea

Physical Location

Organization: Alaska Fisheries Science Center
City: Seattle
State/Province: WA
Country: USA

Data Set Information

Data Set Scope Code: Data Set
Data Set Type: CSV Files
Maintenance Frequency: None Planned
Data Presentation Form: Table (digital)

Support Roles

Data Steward

CC ID: 249928
Date Effective From: 2015
Date Effective To:
Contact (Person): Porter, Steve
Email Address: steve.porter@noaa.gov
Contact Instructions:

email

Distributor

CC ID: 249929
Date Effective From: 2015
Date Effective To:
Contact (Person): Porter, Steve
Email Address: steve.porter@noaa.gov
Contact Instructions:

email

Metadata Contact

CC ID: 249927
Date Effective From: 2019
Date Effective To:
Contact (Person): Bahl, Kimberly
Email Address: kimberly.bahl@noaa.gov
Phone: 206 526 4314
Contact Instructions:

email

Point of Contact

CC ID: 249926
Date Effective From: 2019
Date Effective To:
Contact (Person): Bahl, Kimberly
Email Address: kimberly.bahl@noaa.gov
Phone: 206 526 4314
Contact Instructions:

email

Extents

Currentness Reference: Ground Condition

Extent Group 1

Extent Group 1 / Geographic Area 1

CC ID: 67681
W° Bound: -171.1
E° Bound: -163.3
N° Bound: 57.4
S° Bound: 54.3
Description

Bering Sea

Extent Group 1 / Time Frame 1

CC ID: 67680
Time Frame Type: Range
Start: 2009
End: 2012

Access Information

Security Class: Unclassified
Data Access Policy:

Contact distributor

Data Access Procedure:

Contact Distributor

Data Access Constraints:

Contact Point Of Contact for data request form.

Data Use Constraints:

User must read and fully comprehend the metadata prior to use. Applications or inferences derived from the data should be carefully considered for accuracy. Acknowledgement

of NOAA/NMFS/AFSC, as the source from which these data were obtained in any publications and/or other representations of these, data is suggested.

Metadata Access Constraints:

none

Metadata Use Constraints:

none

Distribution Information

Distribution 1

CC ID: 249930
Download URL: https://console.cloud.google.com/storage/browser/_details/nmfs_odp_afsc/RACE/RPP/NPRB%20926%3B%20Results%20from%202009%20laboratory%20experiment%20measuring%20nuclear%20RNA.csv
Distributor: Steve Porter (2015 - Present)
Description:

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

File Type (Deprecated): csv (comma-separated values)
Distribution Format: CSV - Comma Separated Values (Text)

Technical Environment

Description:

Excel

Data Quality

Completeness Report:

Not applicable.

Quality Control Procedures Employed:

PORTER, S. M., and K. M. BAILEY. 2013. Using measurements of muscle cell nuclear

RNA with flow cytometry to improve assessment of larval condition of walleye

pollock (Gadus chalcogrammus). Fish. Bull., U.S. 111:337-351.

Data Management

Have Resources for Management of these Data Been Identified?: No
Approximate Percentage of Budget for these Data Devoted to Data Management: Unknown
Do these Data Comply with the Data Access Directive?: No
Is Access to the Data Limited Based on an Approved Waiver?: No
Approximate Delay Between Data Collection and Dissemination: varies
If Delay is Longer than Latency of Automated Processing, Indicate Under What Authority Data Access is Delayed:

Requires human identification and analysis of samples.

Actual or Planned Long-Term Data Archive Location: To Be Determined
If To Be Determined, Unable to Archive, or No Archiving Intended, Explain:

No current archive supports this data type.

Approximate Delay Between Data Collection and Archiving: varies
How Will the Data Be Protected from Accidental or Malicious Modification or Deletion Prior to Receipt by the Archive?:

local and offsite backups

Lineage

Lineage Statement:

PORTER, S. M., and K. M. BAILEY. 2013. Using measurements of muscle cell nuclear

RNA with flow cytometry to improve assessment of larval condition of walleye

pollock (Gadus chalcogrammus). Fish. Bull., U.S. 111:337-351.

Catalog Details

Catalog Item ID: 12673
GUID: gov.noaa.nmfs.inport:12673
Metadata Record Created By: Nancy Roberson
Metadata Record Created: 2012-07-23 13:28+0000
Metadata Record Last Modified By: SysAdmin InPortAdmin
Metadata Record Last Modified: 2023-10-17 16:12+0000
Metadata Record Published: 2016-05-18
Owner Org: AFSC
Metadata Publication Status: Published Externally
Do Not Publish?: N
Metadata Last Review Date: 2016-05-18
Metadata Review Frequency: 1 Year
Metadata Next Review Date: 2017-05-18