Zoetwater is van cruciaal belang voor de leefbaarheid en de economie in Zeeland. Het wordt gebruikt voor drinkwater en proceswater voor de industrie, daarnaast is het een essentieel productiemiddel voor de landbouw en glastuinbouw. De zoetwatervoorziening in Zeeland staat onder druk. Na de droge zomers …

Industrial, agricultural, and domestic sectors have an impact on the pollution of surface waters. More specifically, discharges of wastewater treatment plants also have a major impact on the quality of surface waters. According to PBL Netherlands Environmental Assessment Agency, Dutch surface waters …

Information about the sources of plastic litter found in the Zeeuwse Delta is still scarce. This problem is addressed by this study with the aim to identify the possible sources of plastics that washed ashore on a selection of beaches in the Zeeuwse Delta. For this study the source and origin of the …

Ever since lake Volkerak got its status as a partially closed-off lake in the late ‘80s, excessive (cyanobacterial) algae blooms in the summer period have been a consistently occurring problem. This research aims to investigate the location-specific effectiveness of wetlands and floodplains in nutrient …

De gevolgen van wateroverlast, welke veroorzaakt worden door een toename in neerslag, zijn steeds vaker merkbaar binnen stedelijke gebieden. Veelal is het aanwezige rioolstelstel niet gedimensioneerd om de hoeveelheden water die valt ten gevolge van hevige neerslag te verwerken. Dit kan voor veel schade …

The native fish populations in New Zealand have proven to be declining. There are various reasons for this change in population size, one of the biggest being structures that form barriers to migration. This shows the need for fish passage options that are better adjusted to these ‘weaker’ swimmers and …

The seeding of mussel seeds is an important factor within the mussel culture as losses can be as high as 75% within the first 4 weeks after seeding. Therefore it is important to get more knowledge about the factors that can cause mortality within the first weeks after seeding. With seeding high local …

In the Province of Zeeland, ragworms (Alitta virens) are farmed on large scale in open rectangular (flow through systems) ponds. In April these ponds are stocked with ragworm larvae from a hatchery. The juveniles bury themselves in the sediment layer in the pond and are fed with feed pellets. Dependent …

Wageningen Marine Research (WMR) conducts a variety of monitoring programs in Dutch waters. These monitoring programs are conducted to gain knowledge of trends, abundance and diversity of fish species in the Dutch rivers and lakes. Many monitoring programs pay special attention to diadromous fish which …

Coastal tourism and recreation are one of the most rapidly growing fields worldwide and people spend more time outdoors. Skin protection is, in this respect, important to prevent severe skin damage and skin aging. The past decades the awareness and the importance of skin protection against long time …