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01.11.2023

Harbour seal counts in the Wadden Sea show decrease third year in a row

The yearly pup counts of 2023 revealed a 10% increase in pup numbers, while the yearly count of all harbour seals during the moult decreased by 4% compared to 2022.

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Harbour seal resting on sand looking into the camera.

Harbour Seal Numbers in the Wadden Sea and on Helgoland in 2023

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Speakers and organisers of the Wadden Sea Day 2023. © CWSS/ Bostelmann.
31.08.2023

Experts express concern about biodiversity in the Wadden Sea

More than 150 representatives from science, nature conservation, and politics met at Wadden Sea Day titled “Put the Wadden Sea’s Biodiversity on the path to recovery!”

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Fish sculpture on dyke and watermark of Swimway logo.
05.07.2023

Second Trilateral Swimway Conference confirmed for April 2024 and call for abstracts opened

Focusing on applying scientific evidence to manage human impacts on fish life cycles, the conference approach is to balance the outcomes of the latest research on fish life cycles with contributions on the practical implementation of scientific findings to dedicated and effective conservation efforts.

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17.04.2024 - 19.04.2024

Trilateral Swimway Conference 2024

Groningen (NL)

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03.07.2023

Coordinated surveys confirm continuous growth of grey seals in the Wadden Sea

In the past five years, the number of grey seal pups in this region has shown an average annual growth rate of 13 percent, while the number of adult animals counted during the moult grew by 12 percent annually.

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A group of grey seals resting and sunbathing on a sand bank near the water with birds circling above.

Grey Seal Numbers in the Wadden Sea and on Helgoland in 2022-2023

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20.06.2023

Hamburg National Park Authority and CWSS meet on Jour Fixe

Upon invitation of the Common Wadden Sea Secretariat (CWSS), the Hamburg Wadden Sea National Park Authority (NPV HH) visited the Wilhelmshaven office on 8 June for personal exchange.

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30.05.2023

Harald Marencic: “We are the guardians of the Wadden Sea World Heritage Site”

Harald Marencic has been with the Common Wadden Sea Secretariat for 27 years. At the end of May 2023, he will retire.

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Flock of sandwich terns, some flying over, others sitting on dunes and sandy beach with exposed mudflats in distance.
26.04.2023

Experts formulate management guidelines for avian flu outbreaks in Sandwich tern colonies

As migratory birds are returning from their southern wintering grounds to their breeding sites in the Wadden Sea, in view of the experience in 2022, researchers and site managers are concerned about new outbreaks of highly pathogenic avian influenza (HPAI) in colonially breeding birds.

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