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Mastersthesis Reference Etude des peuplements de chênes lièges (Quercus suber L.) dans le Massif des Maures (Département du Var). Essai d’identification des "crûs de liège" et corrélation avec les différents paramètres de l’environnement.
Located in Library / RBINS Staff Publications
Phdthesis Reference Etude sur le comportement de différents mélanges variétaux de haricot commun (Phaseolus vulgaris L.) au Burundi
Located in Library / No RBINS Staff publications
Article Reference La pratique du lancer chez les Néolithiques du Bassin mosan (Belgique, 4500 - 2500 av. J.-C.)
Located in Library / RBINS Staff Publications 2018
Incollection Reference Les restes humains de la fortification
Located in Library / RBINS Staff Publications 2021
Mastersthesis Reference Long-term impacts of offshore wind farms presence on benthic communities in the Belgian part of the North Sea
This study investigates the long-term impacts of offshore wind farms (OWFs) on macrobenthic communities at a far distance (250-500 m) from wind turbines in the C-Power offshore wind farm, on the ThorntonBank (Belgian Part of the North Sea) over a time span of 15 years (2005- 2020). We anticipated that due to the changes in hydrodynamics around wind turbines, together with the increase in depositional flow of faecal pellets produced by filter-feeding epifauna living on the foundation of the wind turbine, there will be an increase in macrobenthic abundance and species richness, as well as a shift in macrobenthos community composition. We also hypothesized that owing to fishery exclusion in offshore wind farms concession areas the ThorntonBank (impact area) and GooteBank (reference area) would grow apart from each other in terms of abundance and species richness, as well as in terms of species composition. Our 15 years analysis supported the hypothesis of an increase in macrobenthic abundance and species richness as fine sediment fraction and total organic matter content increase within the sediment of OWFs. The appearance and subsequent increase in Terebellidae sp. and Ophelia borealis suggested a shift in macrobenthos community composition when compared to the baseline study of 2005. However, changes in macrobenthic abundance, species richness and species composition were observed on both sandbanks, suggesting that either human activities that once took place on the GooteBank affected the communities there, or adding wind turbine does not generate strong impacts on macrobenthic communities. The observed fluctuations over the years could then be due to normal fluctuations in macrobenthos, or that other factors are at play such as climate change. However, in order to confirm these statements, additional studies on macrobenthos within the Belgian Part of the North Sea should be done on the long term. Further analysis should also be carried out in order to confirm the potential shift from a Nepthys cirrosa community toward an Abra alba community
Located in Library / RBINS Staff Publications 2022
Mastersthesis Reference MONITORING OF HARBOUR PORPOISE (PHOCOENA PHOCOENA) DENSITY IN THE BELGIAN PART OF THE NORTH SEA USING AERIAL SURVEYS AND PASSIVE ACOUSTIC MONITORING
Located in Library / RBINS Staff Publications 2018
Phdthesis Reference Projet de caractérisation et de divrsification de l'habitat floristique pour l'entomofaune au Jardin Botanique expérimental Jean Massart
Located in Library / RBINS Staff Publications 2018
Mastersthesis Reference Protecting the marine environment whilst installing offshore windfarms: the effect of scour protection layers on benthic biodiversity
The North Sea will soon see the installation of a higher number of wind turbine foundations, greatly expanding the habitat options for reef species. These offshore structures constitute a new, artificial, hard substratum habitat on the Belgian continental shelf, where the seafloor is primarily made up of muddy and sandy sediment. The possibility of co-designing offshore wind farms with more microhabitats through increasing habitat complexity is one method for the multiple uses of wind farms. This method is known as nature-inclusive building. The structure and dynamics of ecological communities are significantly influenced by habitat complexity. Hence, an increased complexity frequently results in greater species variety and abundance. The objective of this study was to investigate whether adding complexity to the scour protection layer (SPL) increased the diversity and functionality of the ecosystem already present at the bottom of wind turbines (macrobenthos community). To study this, three different variables of 76 species were analysed: richness, biomass, and abundance. Despite being the first time to manipulate the SPL of wind farms, it has been possible to observe and demonstrate that the complexity of these structures affects the ecosystem’s richness. Of the four different treatments, a greater number of species were observed in the most complex ones (3 and 4) compared to the others. In addition, although there were no significant differences, trends of higher biomass of certain species (belonging to decapods and sea anemones) were observed in the presence of higher complexity. Conversely, the constant presence of amphipods was observed across all the treatments. With this study, we wanted to emphasise the importance of the artificial reef effect of the SPL and, together with the microhabitats that it can provide, if at the time of its construction, an attempt is made from an “eco-friendlier” perspective, combining the knowledge of ingested together with the biological. In addition, it provides more knowledge and understanding of this methodology by improving it and obtaining results more similar to those expected in the future.
Located in Library / RBINS Staff Publications 2022
Mastersthesis Reference Sedimentologische, stratigrafische en paleoecologische studie van de Pliocene en Quartaire afzettingen aangetroffen in fase 2 van het Verrebroekdok, provincie Oost-Vlaanderen.
Located in Library / RBINS Staff Publications
Mastersthesis Reference Simultaneous release of sulphides and trace metals in sediments
Combined microchelex-AgI di usive gradients in thin lms (DGT) probes were used to obtain 2D pore water pro les of trace metals and sulphides in di erent aquatic sediments. Sediments were taken from the Zenne River (mixed fresh and marine sediments, Belgium), the Deule River (industrial polluted channel sediments, France) and station 130 in the North Sea (marine sediment, Belgian coastal zone). In Zenne sediments the sulphate reduction zone appears at the SWI where no trace metals are presenting. The fresh organic matter depositions result in the remobilisation of sulphide but the release of metals was immediately oxidised at this area. In marine sediments, the formation process of sulphide hotspots has been illustrated with AgI-gels that were deployed for different times. At the sediment-water interface (SWI) increase of Fe, Co and Mn are linked to decrease in sulphide, while deeper in the sediment, an elevation of sulphide is linked to an obvious decline of metal concentration. The simultaneous remobilisation of sulphide and Ni was found at a depth of 11.2 cm to 11.3 cm in this marine sediment. The size of the Ni hotspot is around 2.36 mm2, but the sulphide hotspot, which is corresponding to the Ni one is much bigger with a size of 240 mm2. The formation of the Ni hotspot happens at the edge of the sulphide hotspot. No simultaneous release was found for the Deule sediments. Discrepancy between the results of chelex-100 and microchelex led to a few new experiments. The spiking experiment and the saturation test gave the explanation for this problem. The microchelex resin becomes much faster saturated than the chelex-100 resin when the metal concentration levels are high in the sediments. This is also different from what has been reported in previous literature. The general trend observed during the held experiments is that with sulphide and especially high sulphide concentrations, no metals appear. Sometimes however, coincident metal/S2- signals are observed, but this does not appear to be a general feature.
Located in Library / No RBINS Staff publications