Good Fish Guide

Brown crab

(Cancer pagurus)

Also known as: Chancre crab, Edible crab

Think before you buy!
Think before you buy!
Some sources of this species are more sustainable than others. View ratings.

Overview

The brown crab is commonly found in the North Atlantic Ocean, North Sea, less so in the Mediterranean. It is the heaviest British crab and easily identified by a characteristic pie-crust edge to the carapace or shell. They are found in waters down to 100 m. Brown crabs are highly fecund. Mating activity peaks in the summer when the female has moulted with spawning occurring in the late autumn or winter. Egg carrying females are largely inactive over the winter brooding period before the eggs hatch in the spring and summer. Between 250,00 to 3,000,000 eggs are held by the female for 8 months until they hatch into planktonic larvae. After around five weeks in the plankton, the crab larvae settle on the seabed. Juvenile crabs settle in the intertidal zone and remain in these habitats for 3 years, until they reach 6-7 cm carapace width, at which time they migrate to subtidal habitats. The crab is encased in a hard, rigid shell, which, like other crustaceans, has to be shed at intervals to permit growth. Moulting takes place at frequent intervals during the first years of a crab's life, but only every two years after it is grown and this is mirrored by a slowing of growth rate. Growth is dependent on the frequency of moulting as well as the increase in size on each moulting occasion and it typically takes about four or five years for a juvenile crab to grow to commercial size. They can grow up to about 25 cm carapace width, with the larger specimens inhabiting deeper water. Growth rate varies between areas, and animals will typically reach a minimum landing size of 140mm carapace width at 4 to 6 years old. Environmental variables e.g. sea temperature related to geographical area and fishing pressure affect the size of maturity with animals in more northerly latitudes growing and maturing more slowly. Minimum landing sizes vary around the British coast from 150mm in the Western Channel to 115 mm in Norfolk for example. Edible crabs can live for up to 100 years but average age is around 25 to 30 years, and sexual maturity is reached after approximately 10 years, but can be as early as 3 to 4 years. Female brown crabs in Scottish waters typically mature between 130 and 150 mm CW. In Orkney research has shown that sexual maturity can be reached at 115 to 120 mm. The sex of a brown crab can be determined by the shape of the abdomen; the males being narrow and the females being broad and rounded for carrying eggs. Stock boundaries for edible crab remain poorly understood and both sexes move quite widely at times; females in particular have been shown to travel large distances in relation to spawning activity.

Ratings

Showing 30 results for Brown crab

Best Choice

Rated 1-2
Showing 0 of 30 results
Showing 0 of 30 results

OK - Needs Improvement

Rated 3-4
Showing 0 of 30 results
Showing 0 of 30 results

Avoid

Rated 5
Showing 0 of 30 results
Showing 0 of 30 results

Under review

Ratings that are Under Review
Showing 30 of 30 results
Showing 30 of 30 results
?

Wild-caught

Location: Offshore (beyond 6nm)

Method: Pot, trap or creel

More info
?

Wild-caught

Location: Offshore (beyond 6nm)

Method: Pot, trap or creel

More info
?

Wild-caught

Location: Offshore (beyond 6nm)

Method: Pot, trap or creel

More info
?

Wild-caught

Location: Southern IFCA District (0-6nm)

Method: Pot, trap or creel

More info
?

Wild-caught

Location: Devon and Severn IFCA District (0-6nm)

Method: Pot, trap or creel

More info
?

Wild-caught

Location: Devon and Severn IFCA District (0-6nm)

Method: Pot, trap or creel

More info
?

Wild-caught

Location: Northumberland IFCA District (0-6nm)

Method: Pot, trap or creel

More info
?

Wild-caught

Location: North Eastern IFCA District (0-6nm)

Method: Pot, trap or creel

More info
?

Wild-caught

Location: Kent and Essex IFCA District (0-6nm)

Method: Pot, trap or creel

More info
?

Wild-caught

Location: Welsh waters

Method: Pot, trap or creel

More info
?

Wild-caught

Location: Isles of Scilly IFCA District (0-6nm)

Method: Pot, trap or creel

More info
?

Wild-caught

Location: North Eastern IFCA District (0-6nm)

Method: Pot, trap or creel

More info
?

Wild-caught

Location: Welsh waters

Method: Pot, trap or creel

More info
?

Wild-caught

Location: Kent and Essex IFCA District (0-6nm)

Method: Pot, trap or creel

More info
?

Wild-caught

Location: Sussex IFCA District (0-6nm)

Method: Pot, trap or creel

More info
?

Wild-caught

Location: North Western IFCA District (0-6nm)

Method: Pot, trap or creel

More info
?

Wild-caught

Location: Eastern IFCA District (0-6nm)

Method: Pot, trap or creel

More info
?

Wild-caught

Location: All areas

Method: Pot, trap or creel

More info
?

Wild-caught

Location: Isle of Man (0-12nm)

Method: Pot, trap or creel

More info
?

Wild-caught

Location: All areas

Method: Pot, trap or creel

Certification: Marine Stewardship Council (MSC)

More info
?

Wild-caught

Location: Offshore (beyond 6nm)

Method: Pot, trap or creel

More info
?

Wild-caught

Location: Cornwall IFCA District (0-6nm)

Method: Pot, trap or creel

More info
?

Wild-caught

Location: Cornwall IFCA District (0-6nm)

Method: Net (gill or fixed)

More info
?

Wild-caught

Location: All areas

Method: Pot, trap or creel

More info
?

Wild-caught

Location: Offshore (beyond 6nm)

Method: Pot, trap or creel

More info
?

Wild-caught

Location: Offshore (beyond 6nm)

Method: Pot, trap or creel

More info
?

Wild-caught

Location: All areas

Method: Pot, trap or creel

More info
?

Wild-caught

Location: All areas

Method: Pot, trap or creel

More info
?

Wild-caught

Location: Cornwall IFCA District (0-6nm)

Method: Net (gill or fixed)

More info
?

Wild-caught

Location: Cornwall IFCA District (0-6nm)

Method: Pot, trap or creel

More info
Also known as

Chancre crab

Edible crab

Need help finding the right rating?

Quickly check the sustainability of your fish or seafood with our step-by-step tool.

Find your fish or seafood
How do we work out our ratings?

Learn more about how we calculate our sustainability ratings.

How our ratings work