Biodiversity and water quality analysis was performed in the Bulurancang and Curah Tangkil springs present in mount Arjuno-Welirang. These values were correlated via the Pearson method. It was found that Bulurancang consistently showed higher species richness, diversity indices, and taxa in comparison …

Oyster reefs were once abundant in European waters, but they are now rare. In Zeeland, the wild population of the native flat oyster (Ostrea edulis) has declined significantly in recent decades, with serious implications for coastal water health in relation to biodiversity and water quality (Colsoul …

The in 2000 established Water Framework Directive urges Member states to realize and maintain chemically clean and ecologically healthy water systems by 2027. Water Board Scheldestromen manages the water system of Zeeland which consists of mainly brackish waters. These types of waters have a variety …

This graduation report describes a research project at the research group metabolomics of the Leiden center of Applied Biosciences (LCAB). The aim of this project was to develop a GC-MS method for the identification of red swamp crayfish pheromones (Procambarus clarkii). Once this method has been developed, …

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 …

Half of the medium-size cities of France are slowly disappearing. From social and economical weaknesses, they experience a rang of symptoms such as shrinkage, urban decay, ageing and impoverished populations that directly impact their spatial qualities and their very own identity. They need a spatial …

The Reeuwijkse Plassen have been dealing with a declining water quality for the past century. One of the problems is eutrophication due to in- and outflow of nutrient rich water from surrounding areas which caused algae blooms and turbid waters. The waterboard Hoogheemraadschap Rijnland implemented measures …

Azorean waters have long been known to be inhabited by a vast number of cetacean species, representing a hotspot for marine wildlife within the North Atlantic. Various ecological factors are related to the complex habitat requirements of marine species such as water temperature, physiography and presence …

Rijkswaterstaat has an effort-obligation and result-obligation to take measures to achieve the goals of the Water Framework Directive (WFD) at the Eastern Scheldt and Lake Grevelingen. The WFD aims to achieve and protect a sufficient ecological and chemical status of inland surface waters, transitional …

Coral reefs have been in decline over the past decades. This has greatly increased the need for restorative measures. The islands of Saba and St. Eustatius, two special Dutch municipalities in the Dutch Caribbean, are not exempt to this decline. The Saba Conservation Foundation and St. Eustatius National …