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 …

This final research is conducted as a bachelor thesis of the programme Delta Management at the HZ University of Applied Sciences in Vlissingen, Netherlands and is executed at the Coastal Conservation Institute (ICC) in the coastal municipality of São Sebastião in Brazil. The municipality is located on …

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 …

The use of artificial reefs for purposes of ecosystem restoration and enhancement is gaining popularity due to recent declines of marine ecosystems. In particular the global decline of natural coral reefs and fish populations demands suitable approaches for improvement. However, is the availability of …

This paper assesses the effect of Marine Stewardship Council certification on the allocation of fishing effort by Filipino purse seine fishers operating in the waters of the Parties to the Nauru Agreement. Targeting skipjack tuna, these purse seiners allocate effort under a vessel day scheme to either …

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 …

When a pipeline is laid on the seabed it can be exposed to hazards of ship anchors, large fishing gear or ice keels. To prevent the pipeline of being damaged, the pipeline can be trenched. Trenching is a technique where the pipeline will be buried in the seabed to a certain depth. This can either be …

This study identifies the capabilities needed by small-scale fishers to participate in Fishery Improvement Projects (FIPs) for yellowfin tuna in the Philippines. The current literature provides little empirical evidence on how different models, or types of FIPs, influence the participation of fishers …

This paper analyzes the influence of three private incentive mechanisms over decision making related to improved sustainability of fishing practices in Filipino tuna fisheries. The three mechanisms compared are the World Wildlife Fund for Nature’s fishery improvement project model, Marine Stewardship …

This study aimed to get more insight into the habitat use and distribution of three sandeel species (Ammodytes sp. & H. lanceolatus) in the Voordelta and describes the findings regarding the Voordelta as a transitional habitat for sandeel populations. As compensation for loss of habitat and foraging …