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Queen scallop

When is best to eat?

Queen Scallops, Seafish


Small scallops with a meaty chunk of muscle in each one with a delicate flavour and texture.

Sustainability Overview

The queen scallops (Mimachalmys varia) that grow on the Falmouth oyster beds are a delicacy that are caught as a by catch of the Fal oyster fishery. A traditional fishery that is restricted to sail and oar power and thus is extremely sustainable. Falmouth Queen scallops have been appreciated by local oystermen for generations but have rarely been sold commercially but in 2017 they began being marketed commercially for the first time. The Fal oyster fishery is well managed and stocks of Queenies are monitored by CIFCA.

They are a different species to the queen scallops caught in other areas of Europe, they are called 'black scallops' by the French as the insides of the shell are a rich dark brown colour. 

This is a small fishery and is only carried out in the Fal Estuary. Total landings in 2022 was 65 tonnes (CIFCA report). Queen scallops are mainly exported to France and other EU countries but a domestic market is building.

Updated July 2023

Sustainability ratings for this species

Sail and Oar

Fal Estuary, Cornwall

Caught by oyster fishermen who use traditional and environmentally friendly methods to fish for oysters using sail and oar power in the Fal Estuary

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How we rate fish

Cornwall Good Seafood Guide rates fish on sustainability using a scale of 1 to 5.

1, 2 and 3 are recommended, Fish to avoid are rated 5.

We use the system devised by the Marine Conservation Society (MCS) so our scores are comparable with the scores produced by MCS for the UK and fisheries from all around the world. For more information on scoring click here.


Queen scallops found in the Fal estuary are a rarely fished species called, Mimachlamys varia, the variagated scallop or 'black queen'. which live attached to the seabed by byssus threads similar to those used by mussels to cling on to rocks. They are fast growing and highly abundant animals that are found growing on empty oyster shells on the Fal and Helford  oyster beds.

Stock Info

Latest survey of the Fal fishery by Cornwall IFCA shows that queen scallops are still abundant in the Fal esutary although numbers found in the survey decreased in 2023 there are still significant stocks. The report shows an increasing proportion of large scallops on the beds. Stocks natually fluctuate in the area depending on sucess of recruitment. It appears that recruitment has not been as sucessfull in recent years.  


The fishery is managed by a local restrictive order that banned the use of engines or winches in the fal oyster fishery in 1868. This has preserved a traditional fishery which is naturally inefficient and thus has sustained this traditional livelihood for 150 years. The fishery is managed by Cornwall Inshore Fisheries and Conservation Authority. 

Capture Info

Queen scallops are caught as by-catch in the Truro river oyster fishery which is carried out in the Fal estuary during winter months. Queen scallops are brought up in oyster dredges. 


Fal Oyster Survey Summary Report CIFCA 2023
Fal Oyster Fishery Permit statistics report 2021/2022 CIFCA
Classification of bivalve mollusc Production areas in England and Wales, Sanitary Survey Report) Fal estuary(lower) and Percuil river 2012 CEFAS Kershaw and Campos
COUNCIL REGULATION (EC) No 510/2006 on protected geographical indications and protected designations of origin “Fal Oyster”  

Recipes for Queen scallop

Where to buy

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