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Summary

Short Citation
Alaska Regional Office, 2025: AKRO/SF: Catch Accounting System (CAS), https://www.fisheries.noaa.gov/inport/item/21988.
Full Citation Examples

Abstract

The Catch Accounting System (CAS) creates total catch estimates for the groundfish fisheries in the Bering Sea/Aleutian Islands and Gulf of Alaska. Each year, quotas are established in the CAS that match the annual harvest specification tables for federally managed groundfish fisheries off Alaska. The output of the CAS is the total amount of groundfish that is retained and the amount that is discarded at sea. In addition, the system creates estimates of the total amount of non-groundfish species -- both prohibited species and non-target species -- that are caught in the groundfish fisheries. Prohibited species catch (PSC) consists of salmon, halibut, and several species of crab. All the PSC species have economic value in non-groundfish fisheries and therefore cannot be retained in the groundfish fisheries. Non-target catch are species like coral, sponges, etc., and catch of these species needs to be calculated in order to evaluate the impact of the groundfish fisheries on the ecosystem.

The CAS uses a combination of industry reports and onboard observer information to provide an estimate of total catch and bycatch. Industry reported data consists of catch (landing reports) and processed product amounts (production reports), and these reports are electronically recorded and submitted to NMFS via eLandings. The observer data are collected by the Alaska Fisheries Science Center (AFSC) using a stratified sampling design. Other sources of information come from the Alaska Commercial Fisheries Entry Commission (CFEC), which issues permits and vessel licenses, and Vessel Monitoring Systems (VMS), which collect the position, time at a position, and course and speed of fishing vessels.

Distribution Information

Access Constraints:

The Catch Accounting System data are sensitive under the Magnuson-Stevens Fishery Conservation and Management Reauthorization Act (2007) and can only be shared with authorized persons or in summary format for public dissemination.

Child Items

No Child Items for this record.

Contact Information

Point of Contact
Jennifer Mondragon
jennifer.mondragon@noaa.gov
(907)586-7010

Metadata Contact
Cathy Tide
cathy.tide@noaa.gov

Extents

Geographic Area 1

-180° W, -130° E, 72° N, 50° S

Alaska, North Pacific, Bering Sea/Aleutian Islands, BSAI, Gulf of Alaska, GOA

Time Frame 1
2003 - Present

Beginning in 2003, the Catch Accounting System (CAS) replaced the Blend System as the source of groundfish, prohibited species catch (PSC), and non-target total catch estimation.

Time Frame 2
2008 - Present

The separate CDQ system was discontinued in 2007 and CDQ catch estimates were included in CAS beginning in 2008.

Time Frame 3
2013 - Present

The North Pacific Groundfish Observer Program was restructured in 2013. The commercial halibut sector was subject to observer coverage for the first time in 2013, so CAS was modified to provide catch estimation on vessels retaining Pacific halibut.