Monitoring van de ecologische effecten van de elektromagnetische velden rond de stroomkabels van het net op zee (Westerschelde, Borssele)
Verhelst, P.; Pauwels, I.; Breine, J.; De Maerteleire, N.; Pieters, S.; Gelaude, E.; Dens, F.; Coeck, J.; Reubens, J. (2022). Monitoring van de ecologische effecten van de elektromagnetische velden rond de stroomkabels van het net op zee (Westerschelde, Borssele). Rapporten van het Instituut voor Natuur- en Bosonderzoek, 2022(3). Instituut voor Natuur- en Bosonderzoek: Brussel. 25 pp. https://dx.doi.org/10.21436/inbor.71056933
Related to:Verhelst, P.; Pauwels, I.; Breine, J.; De Maerteleire, N.; Pieters, S.; Gelaude, E.; Dens, F.; Coeck, J.; Reubens, J. (2023). Monitoring van de ecologische effecten van de elektromagnetische velden rond de stroomkabels van het net op zee (Westerschelde, Borssele) Luik diadrome vis. Deel 2: analyse van het bewegingsgedrag van fint in de Westerschelde in relatie tot de stroomkabels. Rapporten van het Instituut voor Natuur- en Bosonderzoek, 2023 (47). Instituut voor Natuur- en Bosonderzoek: Brussel. 23 pp. https://dx.doi.org/10.21436/inbor.98551728, more
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| Abstract |
The Scheldt Estuary is one of the last large estuaries in Western Europe with a well-developed salinity gradient, salt marshes and (artificial) floodplanes. Also, water quality improvement inthe early 2000s had a positive impact on the biosphere, such as the reestablishment of a spawning twaite shad (Alosa fallax) population. The twaite shad is an anadromous fish speciesthat spawns in the freshwater tidal area, but grows up in the lower reach of the estuary and sea. The species puts high standards to its habitat and is therefore enlisted as a HabitatDirective species. To preserve the species, it is important to conduct impact assessments on new, potential stressors. In this report, we describe the habitat use of twaite shad before theactivation of two electricity cables between the wind turbines at sea and Borssele. The results indicate that twaite shads not only use the Westerschelde in spring as a migration route to andfrom the spawning sites in the Zeeschelde in Belgium, but also as foraging habitat in the summer and autumn. They mainly stay near the shores of the Westerschelde and probably use the deeper zones (i.e. fairway) to move between the estuarine banks. |
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