Common periwinkle

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General

Shellfish

Shellfish is a culinary term that is often used for several species of molluscs, gastropods, bivalves and arthropods. Some examples are the St. James shell, mussels, razor clams, oysters, cockles and whelks. Most shellfish live partly or fully buried into the seabed, mostly in sandy or gravelly bottoms. They feed by filtering nutrients out of the water. Seed and eggs are released into the water and fertilized externally. Most shellfish are hermaphroditic, they can be both male and female. There are many different shellfish species in the North Sea that are very much suitable for consumption. Fishing methods on shellfish include hand-picking, dredging or mechanic dredges (suckers).

Common periwinkle

The common periwinkle is very common along the Dutch shores. They are often a few centimetres big and have a strong, round shell. Common periwinkles are mainly found along the high tide waterline, where they can be handpicked.

Common periwinkle

Littorina littorea

Origin

Atlantic Ocean, north-east (FAO 27)

Farming- / Catch method

Handpicked

Minder tonen Toon beoordeling

Fish stocks and fishing pressure

Ecosystem effects

Fishery management

Final assessment

Explanation assessment

Common periwinkles are a fast-growing species that are not very affected by fishing pressure. Little information is available on the effects of fishing on this species, but common periwinkles are not expected to be very vulnerable. The section fish stocks and fishing pressure receives an orange score.

Hand collecting common periwinkles is a fishing method where bycatchBycatch:
Species caught next to species targeted for fishery. By-catches can consist of non-commercial species and species that are too small, and can be kept (this part is sometimes called by-product) or thrown back into the sea (discards). is virtually non-existent. If an unwanted species is caught, it can be discarded with a high survival rate. The ecosystem effects of removing periwinkles from the sea have not been studied but are expected to be low. For this reason, this section scores green.

There is a management plan for this species that is partially effective. This is due to the lack of specific management for this local fishery, a lack of data and possible risks of illegal fishing (also known as IUU). The management sectionscores orange.

The final assessment for this species is green, meaning you can eat this species without any concern.

Fish in season

Fish in season is the best quality at that time because the spawning period is over.

Common periwinkle

General

Shellfish

Common periwinkle

Common periwinkle

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