Native (flat) oyster (Ostrea edulis) beds, once a major component of the North Sea, largely disappeared from the region in the late 19th century. Flat oyster restoration is taking place at a number of locations in the North Sea. When flat oyster beds are restored in areas where O. edulis is functionally …

Anthropogenic changes to estuaries, usually highly productive systems, may result in increased turbidity levels, suppress pelagic primary production and negatively affect ecosystem functions. The Ems-Dollard estuary, enclosed between the Netherlands and Germany, is such an estuary with a long history …

Ameland, a Dutch Wadden Sea island, is blessed with many historical buildings, such as captains’ houses, which make up picturesque townscapes. Together with the attractions of sandy beaches, these quaint villages attract hundreds of thousands of visitors each year. Ameland also has the ambitious goal …

The Dutch and German Wadden Sea Area received the World Heritage status in 2009 because of its Outstanding Universal Value (OUV) which embodies: cultural and/or natural significance which is so exceptional as to transcend national boundaries and to be of common importance for present and future generations …

This study shows that the main predation pressure in the Dutch Wadden Sea is found to be on calanoid copepods, being the main prey item of C. harengus, A. tobianus, C. edulis, A. aurita and M. leidyi. Bivalve veligers are also found to be widely ingested by predator species, with the main predators being …

This study has been conducted to estimate the ecological impact of wild harvesting Ulva spp. biomass on its population in the Dutch Wadden Sea. The purpose is to give an advice about the ideal time (on the level of population recovery) to wild harvest 1000 kilogram Ulva spp. from the Dutch Wadden Sea. …

In this paper we position sustainable tourism of the Wadden. The aim is to clarify the complex issues at stake and therewith provide a framework for future actions and policies.

The Wadden Sea is the largest tidal area in the world and is of mayor importance in the sectors ecology, economy and culture. It was therefore added to UNESCO World Heritage Site in 2009. Hallumer-Ryt is an area in The Wadden Sea which is characterised by a saltmarsh. This habitat is considered to be …

From previous research in the western Wadden Sea it is clear that mussel plots are important hotspots for biodiversity. When the density of a mussel plot is higher, the biodiversity appears to be higher as well. This final thesis project was a part of the bigger project, ‘Added value with Mussels’, executed …

Due to their high adaptability and opportunistic predation behaviour feral cats have a great impact on worldwide bird biodiversity in particular on islands. However not much is known about their actual behaviour and time budget, as direct behavioural observations often are difficult regarding free-ranging …