The good environmental status for the descriptor "eutrophication" is achieved if the "good ecological status" according to the WFD is achieved and if the eutrophication status according to the integrated HELCOM eutrophication assessment HEAT is at least good. However, a further comparison of the assessment procedures and results for the MSFD is still necessary. Harmonized assessment procedures are available for the scope of the WFD and for HELCOM for the entire Baltic Sea. It developed ecological quality goals, defined indicators and set threshold values ​​for the condition assessment. According to Article 3 No. 1b) MSRL, the assessment procedures according to the WFD exist in the overlapping scope of the MSFD and the WFD (i.e. 1 nautical mile, based on the ecological status assessment according to the WFD). The HELCOM eutrophication assessment tool (HEAT, HELCOM Eutrophication Assessment Tool) will be used for the Baltic Sea beyond 1 nautical mile for the assessment of the state of eutrophication in accordance with MSRL. In line with the need for regional coordination in accordance with Article 5 paragraph 2 MSFD, Germany will strive to make detailed stipulations with the other HELCOM contracting states. As long as detailed stipulations with regionally coordinated class boundaries do not exist within a marine region, assessment procedures analogous to those of the WFD are used. It should be noted that there is a descriptor eutrophication under the MSFD which is based on its own criteria. Under the WFD, eutrophication is not assessed separately, but is considered as part of the ecological status assessment.

Annual nutrient input into the sea (total phosphorus, total nitrogen)

WFD: Normative definition according to RL 2000/60 / EG: "The nutrient concentrations are not above the values at which the functionality of the ecosystem and compliance with the values described above for the biological quality components are guaranteed." HELCOM: The ecological quality goal of the BSAP in terms of nutrients is nutrient concentrations close to the natural concentration.

concentration of chlorophyll a in surface water

WFD: Normative definition according to RL 2000/60 / EG: "The composition and abundance of phytoplankton taxa show minor signs of malfunction. The biomass deviates slightly from the type-specific conditions. These deviations do not indicate an accelerated growth of algae that the balance of the organisms in the water or the physico-chemical quality of the water in an undesirable manner. There may be a slight increase in the frequency and intensity of the type-specific plankton flowers. " HELCOM: The chlorophyll a concentrations ensure compliance with the following ecological quality goals of the BSAP: "Algae blooms occur naturally" and "clear water".

The number, species and extent of algal blooms

WFD: Normative definition according to RL 2000/60 / EG: "The composition and abundance of the phytoplankton taxa show minor signs of malfunction. The biomass deviates slightly from the type-specific conditions. These deviations do not indicate an accelerated growth of algae, which affects the balance of the organisms in the water or the physico-chemical quality of the water would undesirably disrupt. There may be a slight increase in the frequency and intensity of the type-specific plankton flowers. "HELCOM ecological quality goal of the BSAP:" Algae flowers occur only in natural dimensions " and "natural occurrence and distribution pattern of plants and animals"

Transparency

Water Transparency Associated with Increased Floating Algae: Average summer or annual

However, WFD only uses depth of vision in ecological assessment as an accompanying parameter: Normative definition according to RL 2000/60 / EG: "The values for temperature, oxygen balance and depth of vision do not go beyond the range within which the functionality of the ecosystem and the Compliance with the values for the biological quality components described above are guaranteed. The nutrient concentrations are not higher than the values at which the functionality of the ecosystem and the compliance with the values described above are guaranteed for the biological quality components. "HELCOM: ecological quality objective according to BSAP is" clear water "

The condition of the blind-algal zone (the proportion of the gap rest with the minimum rest)

WFD: Normative definition according to RL 2000/60 / EG: "The values for temperature, oxygen balance and depth of vision do not go beyond the range within which the functionality of the ecosystem and compliance with the values for biological quality components described above are guaranteed The nutrient concentrations are not above the values at which the functionality of the ecosystem and compliance with the values described above for the biological quality components are guaranteed. " HELCOM: The BSAP's ecological quality target with regard to oxygen is "natural oxygen concentrations"

Fyokocyanin concentration in surface water

WFD: Normative definition according to RL 2000/60 / EG: "Most disturbance-sensitive large algae and angiosperm taxa, which can be found in the absence of disturbing influences, are present. The values for the large algae thickness and for the abundance of the angiosperms show signs of malfunction." HELCOM ecological quality goals BSAP: "Plants show a natural occurrence and distribution pattern" and "clear water"

Depth of the Block algal zone and of the red algal communities

Maximum depth of macrophyte distribution

WFD: Normative definition according to RL 2000/60 / EG: "Most disturbance-sensitive large algae and angiosperm taxa, which can be found in the absence of disturbing influences, are available. The values for the large algae thickness and for the abundance of the angiosperms show signs of malfunction." HELCOM: ecological quality target of the BSAP is "natural occurrence and distribution pattern of plants"

Air deposition of nutrients

WFD: Normative definition according to RL 2000/60 / EG: "The nutrient concentrations are not above the values at which the functionality of the ecosystem and compliance with the values for biological quality components described above are guaranteed." HELCOM: Ecological quality target according to BSAP: " Nutrient concentrations close to natural concentrations "The ratio of the nutrients to each other has not been evaluated as a separate criterion.