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Harbour seal resting on sand looking into the camera.

Aerial surveys of Harbour Seals in the Wadden Sea in 2009

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

Aerial surveys of grey seals in the Wadden Sea in the seasons of 2007-2008 and 2008-2009

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Wadden Sea Ecosystem 27: Exploring Contrasting Trends of Migratory Waterbirds in the Wadden Sea

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Wadden Sea Ecosystem 25: Wadden Sea Quality Status Report 2009

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Harbour seal resting on sand looking into the camera.

Aerial Surveys of Harbour Seals in the Wadden Sea in 2008

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Harbour seal resting on sand looking into the camera.

Aerial surveys of Harbour seals in the entire Wadden Sea in 2007

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Trilateral Wadden Sea Cooperation - External Evaluation Report 2007

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Spread of the Pacific Oyster Crassostrea gigas in the Wadden Sea

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Harbour seal resting on sand looking into the camera.

Aerial Surveys of Harbour and Grey Seals in the Wadden Sea in 2006

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Wadden Sea Ecosystem 23: Seriously Declining Trends in Migratory Waterbirds

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