The occurrence or quality of the habitat is not endangered by human activities that cause loss or disturbance to the seabed, and the magnitude of the disturbance must be commensurate with the ecological importance of the habitat and its threat. The integrity of the seabed is assessed for broad habitat types by marine area, with each broad habitat assessed according to the weakest status of the relevant indicators.

The distribution of benthic habitats is equivalent to their natural range and losses are identified only at local level. The state of the integrity of the seabed shall be evaluated for quality habitats by sea basin, so that each broad habitat is assessed according to the weakest status of the relevant indicators.

The concentration of dissolved oxygen on the seabed does not fall below the monthly average of 4 mg L-1. The seabed integrity status is assessed for broad habitat types by sea area, with each broad habitat being assessed according to the weakest status of the indicators that characterize them.

Seabed habitat plant and animal communities contain habitat-specific species that are sensitive to eutrophication and clouding and / or non-predominant species. The integrity of the seabed is assessed for large habitat types by marine region, with each broad habitat assessed according to the weakest status of the indicators that characterize them.

The regional species abundance index of the high seas exceeds 3,91 in the Gulf of Finland, 3,0 in Northern Baltic Sea, 2,3 in the Bothnian Sea and 1,37 in the Bay of Bothnia. The state of the integrity of the seabed shall be evaluated for quality habitats by sea basin, so that each broad habitat is assessed according to the weakest status of the relevant indicators.

The value of BQI in the benthic communities in the open sea above the halocline (< 60m in depth) is 0,93 in the Gulf of Finland, 4,0 in the Northern Baltic Sea, 4,0 in the Åland Sea, 4,0 in the Bothnian Sea, 1,5 in the Quark and 1,5 in the Bay of Bothnia. Seabed integrity status shall be evaluated for broad habitat types per sea basin, so that each broad habitat is assessed according to the weakest status of the relevant indicators.

The lower limit of the red algae (the lowest individual) for the species Furcellaria lumbricalis, Rhodomela confervoides, Polysiphonia fucoides and Phyllophora pseudoceranoides is 9.1 m, 7.7 m, 7.7 m and 8.8 m in the inland coastal waters of the Gulf of Finland, 10.2 m in the outer coastal waters of the Gulf of Finland 8.8 m, 8.8 m and 16.5 m, in the southwestern archipelago 10.2 m, 8.8 m, 8.8 m and 11.7 m, in the southwestern archipelago 11.25 m, 9.7 m, 9.7 m and 13.5 m, in the southwestern archipelago 14.2 m, 11.8 m, 11.8 m and 16.5 m, in the coastal waters of the Bothnian Sea 7.0 m, 6.1 m, 6.1 m and 8.5 m, in the northern coastal waters of the Bothnian Sea (not specified), in the Kvarken Inner Archipelago 9.0 m, 7.5 m, 7.5 m and 10.5 m, in the outer archipelago of Kvarken 10.9 m, 9.0 m, 9.0 m and 12.6 m. The seabed integrity status is assessed for broad habitat types by sea area, with each broad habitat being assessed according to the weakest status of the indicators that characterize them.

The water management thresholds (ELS) for coastal benthic communities in the BBI Index are 0.52 / 0.51 (0-10 m /> 10 m) in the Gulf of Finland and 0.56 / 0.56 (0-10 m /> in the outer Gulf of Finland). 10 m), In the southwestern inner archipelago 0.53 / 0.57 (0-10 m /> 10 m), In the southwestern intermediate archipelago 0.56 / 0.53 (0-10 m /> 10 m), In the southwestern outer archipelago 0.55 / 0.54 (0-10 m /> 10 m), 0.56 / 0.57 (0-10 m /> 10 m) in the inland coastal waters of the Bothnian Sea, 0.53 / 0.55 (0-10 m) in the outer coastal waters of the Bothnian Sea /> 10 m), Inner Kvarken Archipelago 0.57 / 0.58 (0-10 m /> 10 m), Outer Kvarken Archipelago 0.56 / 0.59 (0-10 m /> 10 m), Inland Gulf Coast 0 , 57 / 0.55 (0-10 m /> 10 m) and 0.56 / 0.55 (0-10 m /> 10 m) in the outer Gulf of Bothnia. The integrity of the seabed is assessed for large habitat types by marine region, with each broad habitat assessed according to the weakest status of the indicators that characterize them.

The lower limit of the bladder wrack zone (5% coverage in 6 m2 area; ELS values in brackets) is 3.0 / 3.5 m (0.75 / 0.7) (in shelter / open) in the coastal waters of the Gulf of Finland, in the outer coastal waters of the Gulf of Finland 4.0 / 5 , 0 m (0.73 / 0.77) (sheltered / open), in the southwestern archipelago 3.2 / 4.0 m (0.76 / 0.73) (sheltered / open), in the southwestern archipelago 4.0 / 4 , 5 m (0.73 / 0.75) (shelter / open), in the southwestern archipelago 5.5 / 6.0 m (0.79 / 0.75) (sheltered / open), in the coastal waters of the North Sea 3.0 / 5.2 m (0.76 / 0.74) (sheltered / open), in the outer waters of the Bothnian Sea (not determined), in the Kvarken Inner Archipelago 3.7 m (0.74) (open), in the outer archipelago of Kvarken 4.4 m (0 , 74) (open). There is no species in the Bothnian Bay. The seabed integrity status is assessed for broad habitat types by sea area, with each broad habitat being assessed according to the weakest status of the indicators that characterize them.