The tables in this section reflect the output of the workshop (October 2019) when the pressures from human activities were assessed for the period 2014 to 2018 for the region. The summary text below the tables elaborates on some of the points that were made at the workshop.
This pressure assessment uses the FeAST classification which includes two abrasion pressures: surface abrasion & sub-surface abrasion. Some expert groups combined these as a single pressure "surface & sub-surface abrasion" whilst others focussed on using surface abrasion alone, hence there is a slight difference in handling for some regions.
The ranking of the pressures in terms of impact is a relative exercise within each region, and is not a statement of their absolute impact. Detailed comparison between regions on the basis of these relative pressure assessments is therefore not advisable.
The lowering, temporarily or more permanently, of oxygen levels in the water or substrate due to anthropogenic causes. Pressure is closely related to the N and P enrichment pressure. The water column immediately above the sea bed can have lower oxygen levels than the general water column, and this is closely linked to the Organic enrichment and Siltation pressures. The estuary standard is more precautionary as it also seeks to protect migratory fish, which are likely to be the most sensitive element. Oxygen is essential for most life, low levels can inhibit respiration, and other life functions.