Periwinkles are fast-growing species that are little affected by fishing pressureFishing pressure:
Fishing pressure is a result of the fishing effort/amount of fishing on a stock, which determines the fishing mortality. Fishing mortality is the share of the fish stock that dies annually as a result of fishing.. Little information is available on the effects of fishing on this species, but periwinkles are not expected to be very vulnerable.
Periwinkles are primarily hand collected. Harvesting moluscs does not involve 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). and allows for very selectiveSelective fishing methods:
Selective fishing methods capture many target species, and little or no unwanted fish species and animals. fishing. This method does not cause negative ecosystem and habitat impacts. The ecosystem effects of periwinkle removal have not been studied, but are expected to be low.
There is a management plan for this species, but due to the lack of specific management for this local fishery, a lack of data and possible risks of illegalIllegal fishing:
Fisheries that do not comply with the established agreements, such as not giving up catches to national authorities, operating without permission or in prohibited/closed zones. Illegal fishing is covered by IUU fishing (Illegal Unreported Unregulated). fishing. ManagementManagement:
The regulations surrounding fisheries and aquaculture that ensure that production is carried out within legal frameworks and that sustainability can be assured. of this species is partially effective.