Certifier : 
UCSL United Certification Systems Limited
Certified status : 
Certified since : 
24 Sep 2013
Certificate expires : 
18 Dec 2028


Fisheries are composed of one or more parts, each of which is entitled to receive an MSC certificate. These parts or “units” are defined by their target stock(s), fishing gear type(s) and if relevant vessel type(s), and the fishing fleets or groups of vessels.

When the term “Unit of Certification” is used for fishing units that are in assessment, it refers to the “Unit of Assessment” or “Unit of potential certification”. Expand a status below to view the parts that form this fishery. To check the detailed scope, download the latest certificate or open the Assessments page to get the latest report. Find out more by visiting our page on Fisheries

Units of Certification & Certificate Information

  • Certified
    MSC UoC Number Species Gear Type Ocean Area Certificate Code
    UoC-2465 Walleye pollock (Gadus chalcogrammus = Theragra chalcogramma) Trawls - Midwater trawls 61 (Pacific, Northwest) MSC-F-31395 (F-LRF-0126)
    UoC-0161 Walleye pollock (Gadus chalcogrammus = Theragra chalcogramma) Trawls - Midwater trawls 61 (Pacific, Northwest) MSC-F-31395 (F-LRF-0126)

View glossary of terms

Catch by Species

Species Reported Catch Year Metric Tonnes
Walleye pollock (Gadus chalcogrammus = Theragra chalcogramma) 2022 906,392

Information is provided by an independent Conformity Assessment Body as live weight (the weight of species at the time of catch, before processing) and where a fishing season covers multiple years, the end year is given as the reported catch year. Additional information is available in the latest report, see the assessments page.

Eligibility, client groups and vessel lists

A fishery may choose to define the members of the fishery certificate. These members can be vessels or other client group members (e.g. companies that own vessels and/or companies that are named as eligible to handle certified product covered within the fishery certificate scope). Please refer to the fishery certificate statement on additional product specific eligibility criteria (e.g. product eligibility limitations, eligibility date, exclusive points of landing and the point where Chain of Custody certificate is required). Please consult the fishery Public Certification Report for product eligibility rationale.

Documents Published on Files
Vessel List 22 Dec 2023 1 files

About this Fishery

This fishery targets the walleye pollock (Theragra chalcogramma), and was certified in September 2013.

The fleet uses pelagic trawls to catch the fish. This method is considered relatively benign as the gear, in midwater, rarely comes into contact with the seabed: it is not associated with damage to marine habitat. It is also thought to reduce levels of bycatch, although vulnerable species are still sometimes unintentionally captured.

The vessels licensed to operate this fishery are not allowed to use any other types of gear while fishing for pollock – some do have multiple permits and different gear types, but any change in target species must be declared (e.g. switching to cod using bottom trawls). 

Walleye pollock (Theragra chalcogramma) image © Scandinavian Fishing Year Book

Market Information

840,000 metric tonnes are taken each year and used for a range of products. Pollock fillets supplies internal markets as well as Asia and Europe, while roe is mostly exported to the Japanese and southeast Asian markets. Pollock surimi paste is also produced for internal use and export.