Impact of natural (waves and currents) and anthropogenic (trawl) resuspension on the export of particulate matter to the open ocean: Application to the Gulf of Lion (NW Mediterranean) |
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| Authors: | B. Ferré ,X. Durrieu de Madron,C. Estournel,C. Ulses,G. Le Corre |
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| Affiliation: | 1. CEFREM, CNRS—Université de Perpignan, Perpignan, France;2. LA, CNRS—Université de Toulouse, Toulouse, France;3. IFREMER, DRH, Sète, France |
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| Abstract: | Modern sediment deposits on continental margins form a vast reservoir of particulate matter that is regularly affected by resuspension processes. Resuspension by bottom trawling on shelves with strong fishing activity can modify the scale of natural disturbance by waves and currents. Recent field data show that the impact of bottom trawls on fine sediment resuspension per unit surface is comparable with that of the largest storms. |
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| Keywords: | Sediment dynamics Sediment transport Shelf&ndash slope exchanges Fisheries Trawling Mediterranean |
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