AFSC/RACE/MACE: Results of 2011 acoustic trawl survey Gulf of Alaska DY1103

Metadata Updated: November 18, 2018

Scientists from the Midwater Assessment and Conservation Engineering (MACE) Program of the Alaska Fisheries Science Center (AFSC) Resource Assessment and Conservation Engineering (RACE) Division routinely conduct acoustic-trawl (AT) stock assessment surveys to estimate the distribution and abundance of walleye pollock (Gadus chalcogrammus).The survey (cruise DY2011-03) was conducted between 14 June and 12 August on the Gulf of Alaska shelf from 50-500 m depth extending from the Islands of Four Mountains to the Chiniak Trough east of Kodiak Island. The area referred to as the shelf includes transects that are roughly perpendicular to the continental shelf depth contours and extend in a general north-south direction from inshore bottom depths of 500 m. Smaller surveys were conducted in several bays and around islands including: Morzhovoi Bay, Sanak Trough, Pavlof Bay, the Shumagin Islands areas of Renshaw Point, Unga Strait, and West Nagai Strait, Mitrofania Island, Nakchamik Island, Shelikof Strait, Chiniak Trough, Barnabas Trough, and Alitak Bay. All activities were conducted aboard the NOAA ship Oscar Dyson, a 64-m stern trawler equipped for fisheries and oceanographic research. The survey followed established AT methods as specified in NOAA protocols for fisheries acoustics surveys and related sampling.

Access & Use Information

Downloads & Resources


Metadata Date February 28, 2018
Metadata Created Date May 31, 2016
Metadata Updated Date November 18, 2018
Reference Date(s) (publication)
Frequency Of Update

Metadata Source

Harvested from NOAA CSW Harvest Source

Additional Metadata

Resource Type Dataset
Metadata Date February 28, 2018
Metadata Created Date May 31, 2016
Metadata Updated Date November 18, 2018
Reference Date(s) (publication)
Responsible Party (Point of Contact); Alaska Fisheries Science Center (Custodian)
Contact Email
Access Constraints Access Constraints: The data set is still being analyzed and will not be available for distribution until it has been finalized and all QA/QC practices have been performed. Contact the Data Point Of Contact for estimated time of release. | Use Constraints: User must read and fully comprehend the metadata prior to use. User must acknowledge the Originator when using the data set as a source. User must share data products developed using the source data set with the Originator. Data should not be used beyond the limits of the source scale.
Bbox East Long -151.3241
Bbox North Lat 59.151
Bbox South Lat 52.7463
Bbox West Long -169.5032
Coupled Resource
Frequency Of Update
Guid gov.noaa.nmfs.inport:31668
Harvest Object Id 5d69f8bf-f501-48b0-9906-6add740acfe7
Harvest Source Id 2aed8e29-fc5b-4cde-aa66-fb1118fd705e
Harvest Source Title NOAA CSW Harvest Source
Metadata Language eng
Metadata Type geospatial
Spatial Data Service Type
Spatial Reference System
Spatial Harvester True
Temporal Extent Begin 2011-06-14
Temporal Extent End 2011-08-12

Didn't find what you're looking for? Suggest a dataset here.