EOP active acoustics
Data Set (DS) | Pacific Islands Fisheries Science Center (PIFSC)GUID: gov.noaa.nmfs.inport:2711 | Updated: November 6, 2022 | Published / External
Summary
Short Citation
Pacific Islands Fisheries Science Center, 2024: EOP active acoustics, https://www.fisheries.noaa.gov/inport/item/2711.
Full Citation Examples
These data contain shipboard active acoustics data collected in the Pacific, both pelagic and near shore environments. Data is collected using Simrad EK60 splitbeam multifrequency systems with the transducers pointing vertically down in the water column. The echosounders operate up to four frequencies at 38 kHz, 70 kHz, 120 kHz, and 200 kHz.
Distribution Information
-
SE1501
-
SE1102
-
SE0902
None
Child Items
No Child Items for this record.
Contact Information
Point of Contact
Reka Domokos
reka.domokos@noaa.gov
(808)725-5368
Metadata Contact
Reka Domokos
reka.domokos@noaa.gov
(808)725-5368
Extents
130° W,
-140° E,
36° N,
-20° S
Pacific Ocean, South Central Pacific, North Central Pacific, North Western Pacific, Hawaii, American Samoa, Hawaiian Islands seamounts
2004-03 - Present
Item Identification
| Title: | EOP active acoustics |
|---|---|
| Status: | In Work |
| Abstract: |
These data contain shipboard active acoustics data collected in the Pacific, both pelagic and near shore environments. Data is collected using Simrad EK60 splitbeam multifrequency systems with the transducers pointing vertically down in the water column. The echosounders operate up to four frequencies at 38 kHz, 70 kHz, 120 kHz, and 200 kHz. |
| Purpose: |
Active acoustic data obtained during shipboard surveys are used to study the distribution, movement patterns, composition, and biomass of economically important nekton (such as tunas, snappers, etc), as well as their prey species, which comprise the sonic scattering layer, SSL. Once developed, hydro-acoustic techniques can become a primary method for stock assessment. Besides being free of biases associated with fishery dependent stock assessment methods, hydro-acoustic tools have the advantages of yielding large amounts of data on a controlled grid with a relatively low demand for resources. Further, active acoustic surveys provide simultaneous information on both nekton and micronekton, allowing to better our understanding on the effects of micronekton distribution, movement patterns, and biomass on its predators. With the combination of simultaneously collected data on the environment (such as currents, temperature, salinity,sea surface height, chloropigments), the effects of the physical environment on both nekton and micronekton can be investigated. |
| Supplemental Information: |
Ownership: PIFSC Study Area: Western and Central North Pacific Spatial Resolution: approximately 20-80 cm vertical, 1-100m horizontal, along predetermined survey tracks Temporal Resolution: .2 - 1 second Frequency of Collection: 24 hours / day during survey Time of Collection: Discrete data sets, typically 2-3 weeks per year; cruise, usually once per year Types of Data Collected: Hydro-acoustic data in raw voltage Collection Method: SIMRAD split-beam, vertically pointed transducers Recording Media: Hard drives (internal Collection Standards of the Data or Creation Standards of the Data Product: Available Data Collection Documentation: Field Manual Storage Media: External and internal drives, Simrad EK60 raw data format Security and Integrity Plans: Available Backups: Available Update Schedule: Per cruise, usually once per year |
Keywords
Theme Keywords
| Thesaurus | Keyword |
|---|---|
| UNCONTROLLED | |
| None | bioacoustics |
| None | biomass estimation |
| None | bottomfish |
| None | Deep-7 |
| None | ensonified fish |
| None | EOP |
| None | ESD |
| None | micronekton |
| None | nekton |
| None | PIFSC |
| None | snappers |
| None | sonic scattering layer |
| None | SSL |
| None | tuna |
Temporal Keywords
| Thesaurus | Keyword |
|---|---|
| UNCONTROLLED | |
| None | .2 seconds |
| None | Discrete sampling periods |
| None | half seconds |
| None | once per seconds |
Spatial Keywords
| Thesaurus | Keyword |
|---|---|
| UNCONTROLLED | |
| None | Hawaii |
| None | mesoscale oceanographic features |
| None | North Central Pacific |
| None | Pacific Ocean |
| None | seamounts |
| None | South Central Pacific |
Physical Location
| Organization: | Pacific Islands Fisheries Science Center |
|---|---|
| City: | Honolulu |
| State/Province: | HI |
| Country: | USA |
Data Set Information
| Data Set Scope Code: | Data Set |
|---|---|
| Maintenance Frequency: | Annually |
| Data Presentation Form: | Profile (digital) |
| Entity Attribute Overview: |
Hydro-acoustic data in raw voltage |
Support Roles
Data Steward
| Date Effective From: | 2006-08-31 |
|---|---|
| Date Effective To: | |
| Contact (Person): | Domokos, Reka |
| Address: |
1845 Wasp Blvd. Honolulu, HI 96818 USA |
| Email Address: | reka.domokos@noaa.gov |
| Phone: | (808)725-5368 |
| Business Hours: | 8:00 a.m. - 4:30 p.m. M-F |
Distributor
| Date Effective From: | 2015-12-16 |
|---|---|
| Date Effective To: | |
| Contact (Organization): | Pacific Islands Fisheries Science Center (PIFSC) |
| Address: |
1845 Wasp Blvd. Honolulu, HI 96818 USA |
| Email Address: | pifsc.info@noaa.gov |
| Phone: | 808-725-5360 |
| URL: | https://www.pifsc.noaa.gov |
| Business Hours: | 8:00 a.m. - 4:30 p.m. |
Metadata Contact
| Date Effective From: | 2006-08-31 |
|---|---|
| Date Effective To: | |
| Contact (Person): | Domokos, Reka |
| Address: |
1845 Wasp Blvd. Honolulu, HI 96818 USA |
| Email Address: | reka.domokos@noaa.gov |
| Phone: | (808)725-5368 |
| Business Hours: | 8:00 a.m. - 4:30 p.m. M-F |
| Contact Instructions: |
|
Point of Contact
| Date Effective From: | 2006-08-31 |
|---|---|
| Date Effective To: | |
| Contact (Person): | Domokos, Reka |
| Address: |
1845 Wasp Blvd. Honolulu, HI 96818 USA |
| Email Address: | reka.domokos@noaa.gov |
| Phone: | (808)725-5368 |
| Business Hours: | 8:00 a.m. - 4:30 p.m. M-F |
Extents
Extent Group 1
Extent Group 1 / Geographic Area 1
| W° Bound: | 130 | |
|---|---|---|
| E° Bound: | -140 | |
| N° Bound: | 36 | |
| S° Bound: | -20 | |
| Description |
Pacific Ocean, South Central Pacific, North Central Pacific, North Western Pacific, Hawaii, American Samoa, Hawaiian Islands seamounts |
|
Extent Group 1 / Time Frame 1
| Time Frame Type: | Continuing |
|---|---|
| Start: | 2004-03 |
Access Information
| Security Class: | Unclassified |
|---|---|
| Data Access Procedure: |
Contact Reka Domokos (reka.domokos@noaa.gov) |
| Data Access Constraints: |
None |
| Metadata Access Constraints: |
None |
| Metadata Use Constraints: |
None |
Distribution Information
Distribution 1
| Download URL: | https://maps.ngdc.noaa.gov/viewers/water_column_sonar/index.html |
|---|---|
| Distributor: |
Distribution 2
| Start Date: | 2016 |
|---|---|
| End Date: | Present |
| Download URL: | https://doi.org/doi:10.7289/V5W093WG |
| Distributor: | |
| Description: |
SE1501 |
Distribution 3
| Start Date: | 2013 |
|---|---|
| End Date: | Present |
| Download URL: | https://doi.org/doi:10.7289/V53776PJ |
| Distributor: | |
| Description: |
SE1102 |
Distribution 4
| Start Date: | 2013 |
|---|---|
| End Date: | Present |
| Download URL: | https://doi.org/doi:10.7289/V57S7KQ9 |
| Distributor: | |
| Description: |
SE0902 |
Data Quality
| Quality Control Procedures Employed: |
N/A |
|---|
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?: | Yes |
| Approximate Delay Between Data Collection and Dissemination: | 1 year |
| Actual or Planned Long-Term Data Archive Location: | NCEI-CO |
| Approximate Delay Between Data Collection and Archiving: | 1 year |
| How Will the Data Be Protected from Accidental or Malicious Modification or Deletion Prior to Receipt by the Archive?: |
Data are archived at NCEI-CO |
Lineage
| Lineage Statement: |
Data are collected in the field by PIFSC staff. |
|---|
Catalog Details
| Catalog Item ID: | 2711 |
|---|---|
| GUID: | gov.noaa.nmfs.inport:2711 |
| Metadata Record Created By: | Brent M Miyamoto |
| Metadata Record Created: | 2006-08-31 11:17+0000 |
| Metadata Record Last Modified By: | Sarah Kunkel |
| Metadata Record Last Modified: | 2022-11-06 22:56+0000 |
| Metadata Record Published: | 2015-12-22 |
| Owner Org: | PIFSC |
| Metadata Publication Status: | Published Externally |
| Do Not Publish?: | N |
| Metadata Last Review Date: | 2015-12-22 |
| Metadata Review Frequency: | 1 Year |
| Metadata Next Review Date: | 2016-12-22 |