Copenhagen cockle
VU

Copenhagen cockle

Parvicardium hauniense

Unknown

Photo: iNaturalist: (c) alflar, some rights reserved (CC BY-NC)

Overview

Parvicardium hauniense is a species of mollusc, known as Copenhagen cockle. It is an endemic species to the Baltic Sea.

The Copenhagen cockle faces significant threats from habitat degradation in shallow marine environments due to coastal development, pollution, and climate change impacts. Its restricted distribution in northern European waters makes it particularly vulnerable to localized environmental changes and human activities that alter sediment composition and water quality.

Threat summary

Habitat

Inhabits shallow marine waters and intertidal zones with sandy and muddy substrates in the North Sea and Baltic Sea regions. Typically found buried in soft sediments in coastal areas, estuaries, and shallow bays at depths ranging from the intertidal zone to approximately 30 meters.

Threatened in Åland Islands

Calidris ferrugineaVU

Calidris ferruginea

Declining
VU

Syndyas nigripes

Unknown
Chrysotus cupreusCR

Chrysotus cupreus

Unknown
VU

narulukkokiiluri

Syntormon filiger

Unknown

Frequently asked questions

Why is Copenhagen cockle classified as Vulnerable?
Copenhagen cockle is classified as Vulnerable because the population is declining and the species faces a high risk of extinction in the medium-term future if current pressures continue. The Copenhagen cockle faces significant threats from habitat degradation in shallow marine environments due to coastal development, pollution, and climate change impacts. Its restricted distribution in northern European waters makes it particularly vulnerable to localized environmental changes and human activities that alter sediment composition and water quality.
Where does Copenhagen cockle live?
Copenhagen cockle occurs in Åland Islands, Denmark, Finland, Germany, Poland, and Sweden. Country-level distribution data is sourced from the IUCN Red List and cross-referenced with GBIF occurrences.
What are the main threats to Copenhagen cockle?
The main threats to Copenhagen cockle are ai-1, ai-2, ai-3, and ai-4. The full IUCN-classified threat record for this species is detailed on the species page.

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