Certifier : 
Control Union (UK) Limited
Certified status : 
Certified since : 
02 Mar 2018
Certificate expires : 
31 Aug 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-1533 Cockle (Cerastoderma edule) Dredges - Boat dredges: pump and scoop dredge 27 (Atlantic, Northeast) MSC-F-31358 (MEC-F-053)
    UoC-1532 Japanese carpet shell (Ruditapes philippinarum) Dredges - Boat dredges: pump and scoop dredge 27 (Atlantic, Northeast) MSC-F-31358 (MEC-F-053)

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Catch by Species

Species Reported Catch Year Metric Tonnes
Cockle (Cerastoderma edule) 2021 34.7
Japanese carpet shell (Ruditapes philippinarum) 2021 492.0

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.

About this Fishery

Image © Southern Inshore Fisheries and Conservation Authority

The fishery operates in Poole Harbour, Dorset, England. Cockle fishing has occurred in Poole since the 1900s and managed under Poole Harbour Fishery orders. The Manila or Japanese carpetshell clam was introduced to Poole Harbour in 1988 and has become naturalised. Since 1994 there has been a licensed fishery for the clams. 

Both species are harvested using a "pump-scoop" dredge operated from boats working during daylight high tides.

If you want to learn more about all current UK & Irish Fisheries’ journeys to certification, find out where to buy UK and Irish seafood with the blue fish, and get your hands on the latest mouth-watering recipes, visit the UK & Irish Fisheries Spotlight.

Market Information

Currently the majority of the clam and cockle is being retained in the UK with additional markets in France and Spain.