AFSC/NMML: Southeast Alaska Cetacean Vessel Surveys, 1991 - 2012
Alaska Fisheries Science Center
Data Set
(DS)
| ID: 17370
| Published / External
Created: 2013-01-03
|
Last Modified: 2024-01-15
Project (PRJ) | ID: 23107
ID: 17370
Data Set (DS)
* Discovery• First Pass
» Metadata Rubric
Item Identification
* » Title | AFSC/NMML: Southeast Alaska Cetacean Vessel Surveys, 1991 - 2012 |
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Short Name | AFSC/NMML: Southeast Alaska Cetacean Vessel Surveys, 1991 - 2012 |
* Status | In Work |
Creation Date | 2015 |
Revision Date | |
• Publication Date | |
* » Abstract |
In 1991, NMML initiated cetacean studies with vessel coverage throughout inland waters of Southeast Alaska. Between 1991 and 1993, line-transect methodology was used to: 1) obtain population estimates of both harbor porpoise and Dalls porpoise, 2) establish a baseline for detecting trends in porpoise abundance, and 3) define porpoise distributional patterns and seasonality. Three line-transect surveys were carried out each year spanning spring, summer, and fall. To update abundance and trends for both harbor porpoise and Dalls porpoise, NMML once again initiated line-transect surveys in 2006 (spring and summer), 2007 (spring, summer and fall), 2010 (summer and fall), 2011 (summer and fall), and 2012 (summer) using methods comparable to those used in the early 1990s. |
* Purpose |
Assess cetacean distribution, group size, seasonal occurrence, abundance and population trends. |
Notes |
Loaded by FGDC Metadata Uploader, batch 8489, 04-06-2016 15:37 The following FGDC sections are not currently supported in InPort, but were preserved and will be included in the FGDC export: - Taxonomy (FGDC:taxonomy) |
Other Citation Details | |
• Supplemental Information | |
DOI (Digital Object Identifier) | |
DOI Registration Authority | |
DOI Issue Date |
Keywords
Theme Keywords
Thesaurus | Keyword |
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ISO 19115 Topic Category | biota |
ISO 19115 Topic Category | oceans |
None | abundance |
None | distribution |
None | line-transect survey |
None | seaonal occurrence |
None | trends |
Temporal Keywords
Thesaurus | Keyword |
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None | fall |
None | spring |
None | summer |
* Spatial Keywords
Thesaurus | Keyword |
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None | Southeast Alaska |
Stratum Keywords
Thesaurus | Keyword |
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Instrument Keywords
Thesaurus | Keyword |
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Platform Keywords
Thesaurus | Keyword |
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Physical Location
• » Organization | National Marine Mammal Laboratory |
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• » City | Seattle |
• » State/Province | WA |
• Country | United States |
• » Location Description |
Data Set Information
* Data Set Scope Code | Data Set |
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• Data Set Type | |
• Maintenance Frequency | Annually |
Maintenance Note | |
» Data Presentation Form | Table (digital) |
• Entity Attribute Overview | |
Entity Attribute Detail Citation | |
Entity Attribute Detail URL | |
Distribution Liability |
The user is responsible for the results of any application of this data for other than its intended purpose. NOAA denies liability if the data are misused. |
Data Set Credit | National Marine Fisheries Service Regional Office in Juneau, Alaska, has provided funding for this project. |
Support Roles
* » Support Role | Data Steward |
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* » Date Effective From | 2010 |
Date Effective To | |
Person | Waite, Janice |
Address |
7600 Sand Point Way, NE Seattle, WA 98115-6349 |
Email Address | janice.waite@noaa.gov |
Phone | 206-526-6554 |
Fax | |
Mobile | |
URL | |
Business Hours | |
Contact Instructions |
* » Support Role | Distributor |
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* » Date Effective From | 2016-04-06 |
Date Effective To | |
Organization | National Centers for Environmental Information - Silver Spring, Maryland (NCEI-MD) |
Address |
NOAA/NESDIS E/OC SSMC3, 4th Floor, 1351 East-West Highway Silver Spring, MD 20910-3282 |
Email Address | |
Phone | (301) 713-3277 |
Fax | |
Mobile | |
URL | |
Business Hours | |
Contact Instructions |
* » Support Role | Metadata Contact |
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* » Date Effective From | 2016-04-06 |
Date Effective To | |
Person | MC, Metadata Coordinators |
Email Address | AFSC.metadata@noaa.gov |
Phone | |
Fax | |
Mobile | |
URL | |
Business Hours | |
Contact Instructions |
* » Support Role | Originator |
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* » Date Effective From | 2016-04-06 |
Date Effective To | |
Organization | Alaska Fisheries Science Center (AFSC) |
Address |
7600 Sand Point Way N.E., Building 4 Seattle, WA 98115 USA |
Email Address | afsc.webmaster@noaa.gov |
Phone | (206) 526-4000 |
Fax | (206) 526-4004 |
Mobile | |
URL | https://www.fisheries.noaa.gov/about/alaska-fisheries-science-center |
Business Hours | 0700-1700 Pacific Time |
Contact Instructions |
* » Support Role | Point of Contact |
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* » Date Effective From | 2016-04-06 |
Date Effective To | |
Person | Clapham, Phillip |
Email Address | phillip.clapham@noaa.gov |
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* Contact Instructions |
Extents
Currentness Reference | Ground Condition |
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Extent Group 1
Extent Description |
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Extent Group 1 / Geographic Area 1
* » W° Bound | -137 |
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* » E° Bound | -130 |
* » N° Bound | 60 |
* » S° Bound | 54 |
* » Description |
Inland waters of Southeast Alaska |
Extent Group 1 / Vertical Extent
EPSG Code | |
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Extent Group 1 / Time Frame 1
* » Time Frame Type | Discrete |
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* » Start | 1991 |
End | |
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Description |
Spatial Information
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Reference Systems
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Access Information
Data License | |
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Data License URL | |
Data License Statement | |
* » Security Class | Unclassified |
* Security Classification System | |
Security Handling Description | |
• Data Access Policy | |
» Data Access Procedure |
Data is available at http://data.nodc.noaa.gov/cgi-bin/iso?id=gov.noaa.nodc:0140931 |
• » Data Access Constraints |
There are no legal restrictions on access to the data. They reside in public domain and can be freely distributed. |
• 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 | |
Metadata Use Constraints |
Distribution Information
Start Date | |
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» Download URL | http://accession.nodc.noaa.gov/0140931 |
Distributor | National Centers for Environmental Information - Silver Spring, Maryland (NCEI-MD) (2016-04-06 - Present) |
File Name | |
Description |
csv files with effort and sighting data. |
File Date/Time | |
File Type (Deprecated) | csv (comma-separated values) |
Distribution Format | CSV - Comma Separated Values (Text) |
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URLs
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Activity Log
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Issues
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Technical Environment
Description |
Excel |
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Data Quality
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Completeness Report |
This data includes surveys conducted in the years 1991 - 1993, 2006, 2007, 2010, 2011 and 2012. The surveys conducted in 1991-1993 used a computer program developed by Jim Cubbage. In the 2000's, survey data was collected with Wincruz (Windows Real Time Sighting-Effort Event Logger developed by Robert Holland at Southwest Fisheries Science Center). Most years used the NOAA ship John N. Cobb, but after it was no longer available in 2008, four different charter vessels were used to conduct our surveys: the F/V Steller (commercial fishing vessel) in July 2010; the F/V Northwest Explorer in September 2010; the R/V Medeia (patrol vessel operated by the Alaska Department of Fish and Game) in June and September 2011; and the R/V Aquila in July 2012. In the early 1990's, six observers were used to collect the data. For the 2006 and 2007 surveys, four observers were used, in 2010, 5 observers were used, and in 2011 and 2012, 6 observers were used. Because of the differences in the number of observers, the rotation schedule (time spent at each station) changed over the years. |
Conceptual Consistency |
Accuracy was ensured by reviewing and editing the data in the field on a daily basis. For the surveys in the 2000's, post cruise processing included data extraction and error checking using customized software (writen by Paul Wade, National Marine Mammal Laboratory). Tracklines and sightings were plotted in ArcMap to check for accuracy. |
» Quality Control Procedures Employed |
Accuracy was ensured by reviewing and editing the data in the field on a daily basis. For the surveys in the 2000's, post cruise processing included data extraction and error checking using customized software (writen by Paul Wade, National Marine Mammal Laboratory). Tracklines and sightings were plotted in ArcMap to check for accuracy. |
Data Management
» Have Resources for Management of these Data Been Identified? | No |
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» Approximate Percentage of Budget for these Data Devoted to Data Management | 0 |
» 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 | |
» 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 | |
» Actual or Planned Long-Term Data Archive Location | NCEI-MD |
» 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 |
Methods are described in http://fishbull.noaa.gov/1133/dahlheim.pdf. |
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Sources
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Process Steps
Process Step Number | 1 |
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» Description |
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Acquisition Information
Instruments
Instrument Unavailable Reason |
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Platforms
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FAQs
Date | |
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Child Items
Rubric scores updated every 15m
Score | Type | Title |
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Entity (ENT) | SEAK vessel 06 07 10 11 12 | |
Entity (ENT) | SEAK vessel 91 92 93 | |
Related Items
Item Type | Relationship Type | Title |
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Catalog Details
Catalog Item ID | 17370 |
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Metadata Record Created By | SysAdmin InPortAdmin |
Metadata Record Created | 2013-01-03 14:44+0000 |
Metadata Record Last Modified By | SysAdmin InPortAdmin |
» Metadata Record Last Modified | 2024-01-15 12:08+0000 |
Metadata Record Published | 2018-11-30 |
Owner Org | AFSC |
Metadata Publication Status | Published Externally |
Do Not Publish? | N |
Metadata Workflow State | Published / External |
Metadata Last Review Date | 2018-11-30 |
Metadata Review Frequency | 1 Year |
Metadata Next Review Date | 2019-11-30 |
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