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Full-Text Articles in Social and Behavioral Sciences
Risk Assessments For New Bioinvasions For The North Sea Region, Josefin Madjidian
Risk Assessments For New Bioinvasions For The North Sea Region, Josefin Madjidian
NSBWO
This deliverable is a compilation of summaries of four scientific papers that cover different aspects of risks connected to marine bioinvasions in the North Sea Region. One of the papers looks deeper into global shipping and adds several factors to shipping density to describe hotspots for potential invasions and invasion routes. Two of the papers dig into concerns of regional perspective (the Wadden Sea), one developing a model of a specific kind of water body’s vulnerability to non-native, the other dealing with questions related to when a species should be stated as a non-native and when it has become part …
Ballast Water Samples As "Scientific Evidence”, Jennie Folkunger
Ballast Water Samples As "Scientific Evidence”, Jennie Folkunger
NSBWO
The Ballast Water Management Convention was established as a response to the global issue of the spread of invasive species. The entry into force of the Convention is supposedly imminent, but many issues remain to be solved to ensure its success in preventing the spread of invasive species. Considering the implications involved, it is of great importance for the success of the Convention that sampling procedures to determine compliance are robust and reliable. Further, sampling results must gain acceptance as scientific evidence and basis for enforcement actions. The IMO has produced guidelines and recommendations that are to be evaluated during …
Biofouling : A Means Of Aquatic Species Transfer, Anne Bouyssou, Josefin Madjidian
Biofouling : A Means Of Aquatic Species Transfer, Anne Bouyssou, Josefin Madjidian
NSBWO
Ships carry seawater in their ballast tanks when they are not fully loaded with cargo, in order to maintain adequate trim, draught and stability, adjust list and limit stresses on the hull. It is now well documented that the water pumped into the ship contains aquatic organisms – which can also sink to the sediments at the bottom of tanks – and that these organisms are thereby transferred from the port of origin to the destination. But it is seldom mentioned that aquatic organisms are also found on the outside of ships, attached on their hulls and appendages, as a …
A Prototype Decision Support Tool For Ballast Water Risk Management Using A Combination Of Hydrodynamic Models And Agent-Based Modelling, Fleming T. Hansen, Jesper H. Andersen, Michael Potthof, Thomas Uhrenholdt, Hong D. Vo, Olof Lindén
A Prototype Decision Support Tool For Ballast Water Risk Management Using A Combination Of Hydrodynamic Models And Agent-Based Modelling, Fleming T. Hansen, Jesper H. Andersen, Michael Potthof, Thomas Uhrenholdt, Hong D. Vo, Olof Lindén
NSBWO
We report the development of a prototype Decision Support Tool (DST) for modelling the risks of spreading of non-indegenous invasive species via ballast water. The DST constitutes of two types of models: A 3D hydrodynamical model calculates the currents in the North Sea and Danish Straits, and an agent-based model estimates the dispersal of selected model organisms with the prevailing currents calculated by the 3D hydrodynamical model. The analysis is concluded by a post processing activity, where scenarios of dispersal are combined into an interim estimate of connectivity within the study area. The latter can be used as a tool …