AFSC/NMML: Southeast Alaska Cetacean Vessel Surveys, 1991 - 2012

Metadata Updated: December 7, 2020

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.

Access & Use Information

License: No license information was provided. If this work was prepared by an officer or employee of the United States government as part of that person's official duties it is considered a U.S. Government Work.

Downloads & Resources

Dates

Metadata Date November 24, 2020
Metadata Created Date October 13, 2020
Metadata Updated Date December 7, 2020
Reference Date(s) 2015 (creation), (publication)
Frequency Of Update annually

Metadata Source

Harvested from NMFS AFSC

Additional Metadata

Resource Type Dataset
Metadata Date November 24, 2020
Metadata Created Date October 13, 2020
Metadata Updated Date December 7, 2020
Reference Date(s) 2015 (creation), (publication)
Responsible Party (Point of Contact, Custodian)
Contact Email
Access Constraints Cite As: Alaska Fisheries Science Center, [Date of Access]: AFSC/NMML: Southeast Alaska Cetacean Vessel Surveys, 1991 - 2012 [Data Date Range], https://www.fisheries.noaa.gov/inport/item/17370., Access Constraints: There are no legal restrictions on access to the data. They reside in public domain and can be freely distributed. | 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. | 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.
Bbox East Long -130
Bbox North Lat 60
Bbox South Lat 54
Bbox West Long -137
Coupled Resource
Frequency Of Update annually
Guid gov.noaa.nmfs.inport:17370
Harvest Object Id a26706bf-6cc5-42bc-9a34-7995be45647d
Harvest Source Id 4ec9cdf0-d791-4933-8ba3-703563ff892e
Harvest Source Title NMFS AFSC
Licence NOAA provides no warranty, nor accepts any liability occurring from any incomplete, incorrect, or misleading data, or from any incorrect, incomplete, or misleading use of the data. It is the responsibility of the user to determine whether or not the data is suitable for the intended purpose.
Metadata Language eng
Metadata Type geospatial
Progress underDevelopment
Spatial Data Service Type
Spatial Reference System
Spatial Harvester True

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