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Item Identification
Keywords
Physical Location
Data Set Info
Support Roles
Extents
Access Info
Distribution Info
Data Quality
Data Management
Lineage
Catalog Details

Summary

Short Citation
Alaska Fisheries Science Center, 2024: Obsolete - AFSC/RACE/EcoFOCI: Chlorophyll, ichthyoplankton and zooplankton data for 3MF04 and 8MF04, https://www.fisheries.noaa.gov/inport/item/17097.
Full Citation Examples

Abstract

These data are part of a ocean observation study by Stabeno, Napp, and Whitledge sponsored, in part, by the North Pacific Research Board (Project 410; http://doc.nprb.org). The grant was titled "Long-term observations on the Bering Sea shelf (2004-2005): biophysical moorings at sites 2 and 4 as sentinels for ecosystem change." Moorings were maintained on the southeastern Bering Sea shelf at M2

(56.9B0N, 164.1B0W), and at M4 (57.9B0N, 168.9B0W). Shipboard

measurements of temperature, salinity, nutrients, chlorophyll, fluorescence and

zooplankton were collected around the moorings on two cruises (3MF04 - April 2004 and 8MF04 - September 2004) to ground truth in situ sensors on the moorings. This long-term monitoring supported major findings: (1) The timing of the spring phytoplankton bloom is determined by the presence of ice, with an early bloom occurring if ice is present after mid-March and later bloom occurring if there

is no sea-ice after mid-March; (2) During the last decade, the southeastern Bering Sea

shelf has undergone a marked warming (~3B0C) that is closely associated with a marked

decrease of sea ice over the southeastern shelf; (3) Nutrients supply and summer salinity

over the shelf has not significantly changed during the last three decades; (4) There is an

indication that cold water zooplankton species (e.g Calanus marshallae ) are occurring

in reduced abundance in association with the warming. While the warming over the

southeastern shelf is primarily related to the reduction of ice extent, a combination of

other mechanisms are important: the presence over the eastern shelf of a relatively mild

air mass during winter since 2000; a shorter ice season caused by a later fall transition

and/or earlier spring transition; increased flow through Unimak Pass during winter

introducing warm Gulf of Alaska water onto the shelf; and a thermal feedback

mechanism whereby warmer, summer ocean temperatures delay the southward advection

of sea ice during winter.

Distribution Information

Access Constraints:

None

Use Constraints:

Contact Distributor

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

-175° W, -160° E, 65° N, 55° S

Time Frame 1
2004-05-15 - 2006-04-01

Item Identification

Title: Obsolete - AFSC/RACE/EcoFOCI: Chlorophyll, ichthyoplankton and zooplankton data for 3MF04 and 8MF04
Short Name: Obsolete - AFSC/RACE/EcoFOCI: Chlorophyll data form 3MF04 and 8MF04
Status: Completed
Abstract:

These data are part of a ocean observation study by Stabeno, Napp, and Whitledge sponsored, in part, by the North Pacific Research Board (Project 410; http://doc.nprb.org). The grant was titled "Long-term observations on the Bering Sea shelf (2004-2005): biophysical moorings at sites 2 and 4 as sentinels for ecosystem change." Moorings were maintained on the southeastern Bering Sea shelf at M2

(56.9B0N, 164.1B0W), and at M4 (57.9B0N, 168.9B0W). Shipboard

measurements of temperature, salinity, nutrients, chlorophyll, fluorescence and

zooplankton were collected around the moorings on two cruises (3MF04 - April 2004 and 8MF04 - September 2004) to ground truth in situ sensors on the moorings. This long-term monitoring supported major findings: (1) The timing of the spring phytoplankton bloom is determined by the presence of ice, with an early bloom occurring if ice is present after mid-March and later bloom occurring if there

is no sea-ice after mid-March; (2) During the last decade, the southeastern Bering Sea

shelf has undergone a marked warming (~3B0C) that is closely associated with a marked

decrease of sea ice over the southeastern shelf; (3) Nutrients supply and summer salinity

over the shelf has not significantly changed during the last three decades; (4) There is an

indication that cold water zooplankton species (e.g Calanus marshallae ) are occurring

in reduced abundance in association with the warming. While the warming over the

southeastern shelf is primarily related to the reduction of ice extent, a combination of

other mechanisms are important: the presence over the eastern shelf of a relatively mild

air mass during winter since 2000; a shorter ice season caused by a later fall transition

and/or earlier spring transition; increased flow through Unimak Pass during winter

introducing warm Gulf of Alaska water onto the shelf; and a thermal feedback

mechanism whereby warmer, summer ocean temperatures delay the southward advection

of sea ice during winter.

Purpose:

Chlorophyll samples taken at and around the moorings were obtained as groundtruth data for chlorophyll fluorescence sensors on the moorings. See http://www.pmel.noaa.gov/foci/foci_moorings/foci_moorings.shtml for information on mooring locations, configurations, and data.

Notes:

Loaded by batch 3771, 12-05-2012 12:37

Keywords

Theme Keywords

Thesaurus Keyword
UNCONTROLLED
biota chlorophyll
biota phaeopigments
biota phytoplankton
oceans chlorophyll
oceans phaeopigments
oceans phytoplankton
PARR Exclusion Non-Federal Funding
PARR Exclusion Obsolete Data Set

Temporal Keywords

Thesaurus Keyword
UNCONTROLLED
Seasons Spring
Seasons Summer

Spatial Keywords

Thesaurus Keyword
UNCONTROLLED
None Alaska
None arctic
None Bristol Bay
None eastern Bering Sea shelf
None St. Lawrence Island

Stratum Keywords

Thesaurus Keyword
UNCONTROLLED
Depths upper water column

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: Oracle Database
Maintenance Frequency: None Planned
Data Presentation Form: Table (digital)

Support Roles

Data Steward

CC ID: 249897
Date Effective From: 2019
Date Effective To:
Contact (Person): Bahl, Kimberly
Email Address: kimberly.bahl@noaa.gov
Phone: 206 526 4314
Contact Instructions:

email

Distributor

CC ID: 249896
Date Effective From: 2015
Date Effective To:
Contact (Person): Duffy-Anderson, Janet
Email Address: janet.duffy-anderson@noaa.gov
Contact Instructions:

email

Metadata Contact

CC ID: 249895
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: 79966
Date Effective From: 2019
Date Effective To:
Contact (Person): Bahl, Kimberly
Email Address: kimberly.bahl@noaa.gov
Phone: 206 526 4314

Extents

Currentness Reference: Ground Condition

Extent Group 1

Extent Group 1 / Geographic Area 1

CC ID: 79965
W° Bound: -175
E° Bound: -160
N° Bound: 65
S° Bound: 55

Extent Group 1 / Time Frame 1

CC ID: 79964
Time Frame Type: Range
Start: 2004-05-15
End: 2006-04-01

Access Information

Security Class: Unclassified
Data Access Policy:

Contact Distrobitor

Data Access Procedure:

Contact Distributor

Data Access Constraints:

None

Data Use Constraints:

Contact Distributor

Metadata Access Constraints:

none

Metadata Use Constraints:

none

Distribution Information

Distribution 1

CC ID: 249899
Download URL: http://epic.noaa.gov
Distributor:

Data Quality

Quality Control Procedures Employed:

See InPort entries 26275, 26373 and 26570.

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:

Required human examination of samples

Actual or Planned Long-Term Data Archive Location: Other
If World Data Center or Other, Specify: multiple locations depending on 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 off site backups

Lineage

Lineage Statement:

See InPort entries 26275, 26373 and 26570.

Catalog Details

Catalog Item ID: 17097
GUID: gov.noaa.nmfs.inport:17097
Metadata Record Created By: Doug Turnbull
Metadata Record Created: 2012-12-05 12:37+0000
Metadata Record Last Modified By: SysAdmin InPortAdmin
Metadata Record Last Modified: 2022-08-09 17:11+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