Spatial extent and distribution of physical loss of the natural seabed does not increase to an extent that endangers the functioning of the ecosystem.

Spatial extent and distribution of physical distur­bance pressures on the seabed are in an extent that enables sustainable use of ecosystem.

Posidonia oceanica meadow: a) The area of distribution of P. oceanica meadow is not decreasing. b) Ecological quality of P. oceanica meadow is not decreasing.

Intertidal hard bottom and rocks: a) Good ecological status of benthic communities on hard bottoms is not decreasing. b) Distribution of biocenosis is maintained. Biocenosis of sublittoral algae: a) Good ecological status of benthic communities on hard bottoms is not decreasing. b) Distribution of biocenosis is maintained.

Posidonia oceanica: a) The area of distribution of P. oceanica meadow is not decreasing. b) Ecological quality of P. oceanica meadow is not decreasing.

Biocenosis of sublittoral algae: a) Good ecological status of benthic communities on hard bottoms is not decreasing. b) Distribution of biocenosis is maintained. c) Species composition is maintained and in accordance with nature of substrate and environmental conditions. Sublittoral fine sands with different amount of mud: a) Good ecological status of benthic communities on soft bottoms is not decreasing. b) Distribution of biocenosis is maintained. c) Species composition is maintained and in accordance with nature of substrate and environmental conditions. Sublittoral coarse sands with different amount of mud: a) Good ecological status of benthic communities on soft bottoms is not decreasing. b) Distribution of biocenosis is maintained. c) Species composition is maintained and in accordance with nature of substrate and environmental conditions. Circalittoral muds: a) Good ecological status of benthic communities on soft bottoms is not decreasing. b) Distribution of biocenosis is maintained. c) Species composition is maintained and in accordance with nature of substrate and environmental conditions. Circalittoral sands: a) Good ecological status of benthic communities on soft bottoms is not decreasing. b) Distribution of biocenosis is maintained. c) Species composition is maintained and in accordance with nature of substrate and environmental conditions. Bathyal muds: a) Good ecological status of benthic communities on soft bottoms is not decreasing. b) Distribution of biocenosis is maintained. c) Species composition is maintained and in accordance with nature of substrate and environmental conditions.

a) Range of photophilic algal community is stable or increasing according to all indicators monitored and not below then Favourable Reference Range (according to Habitat Directive). b) Range of Posidonia meadow is stable or increasing and is not less than the FRR value (Favourable Reference Range for HD habitats). c) Distributional range of Coralligenous assemblages in Croatia is stable or increasing and not smaller than the FRR value (Favourable Reference Range for HD habitats).

Distribution of photophilic algal community is in accordance with the expected pattern throughout the established distributional range.

a) Coastline colonized by Cystoseira amantacea is stable or increasing and not smaller that the baseline value. b) The upper and lower limits of Posidonia meadows are not in regression.

a) Upper infralittoral algal communities are in High and Good ecological status according to WFD. b) Posidonia oceanica has Good and High ecological status according to WFD. c) Posidonia meadows have Good and High ecological status according to WFD. d) Habitat structure and function of Coralligenous assemblages in Croatia are maintained. e) Taxonomic diversity of planktonic species is not significantly changed from naturally occurring conditions.

a) Posidonia oceanica shoot density is not decreasing. b) Relative abundances and plankton biomass are not significantly changed from naturally occuring conditions.