Ecosystem overviews

Bay of Biscay and the Iberian Coast Ecoregion

Pressure: Abrasion



This pressure principally affects the seabed habitats and is associated with bottom-contacting mobile fishing gear, in particular beam trawling and otter trawling as well as local activities like dredging or those linked to tourism such as anchoring.

Using vessel monitoring system (VMS) and logbook data, ICES estimates that mobile bottom trawls used by commercial fisheries in the 12 m+ vessel category were deployed over approximately 144 300 km2 of the ecoregion in 2018; this corresponds to approximately 19.1% of the ecoregion's spatial extent (Figure 6). 


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Figure 6: Surface and subsurface abrasion pressure expressed as the swept-area ratio, obtained from VMS data from 2015 to 2018 in the Bay of Biscay and the Iberian Coast ecoregion.​

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Bay of Biscay and the Iberian Coast Ecoregion

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