Member State report / Art9 / 2018 / D5 / Estonia / Baltic Sea
| Report type | Member State report to Commission |
| MSFD Article | Art. 9 Determination of GES (and Art. 17 updates) |
| Report due | 2018-10-15 |
| GES Descriptor | D5 Eutrophication |
| Member State | Estonia |
| Region/subregion | Baltic Sea |
| Reported by | Estonian Environment Agency |
| Report date | 2020-04-06 |
| Report access | msfd2018-ART9_GES_FINAL2019_.xml |
GES component |
D5
|
D5C1
|
D5C2
|
D5C3
|
D5C4
|
D5C5
|
D5C6
|
D5C7
|
D5C8
|
5.1.2
|
5.2
|
5.3
|
|---|---|---|---|---|---|---|---|---|---|---|---|---|
Marine reporting units |
|
|
|
|
|
|
|
|||||
Features |
|
|
|
|
|
|
|
|||||
GES description |
GES is determined via summer concentration of total nitrogen (TN) and total phosphorus (TP) in seawater; winter-time concentration of inorganic nitrogen (NO3+NO2–N) (DIN) and phosphates (PO4-P) (DIP) in seawater.
GES is achieved if indicator values are below threshold values in the assessment units:
TN:
EE1-2: 26,8 μmol/l;
EE3-6: 22,8 μmol/l;
EE7: 18,3 μmol/l;
EE8-9: 21μmol/l;
EE10-11: 18,3 μmol/l;
EE12: 23,7 μmol/l;
EE13: 29,2 μmol/l;
EE14-16: 21 μmol/l;
GOF: 21,3 μmol/l;
GOR: 28,0 μmol/l;
NBP: 16,2 μmol/l;
EGB: 16,5 μmol/l.
TP:
EE1-2: 0,84 μmol/l;
EE3-6: 0,72 μmol/l;
EE7: 0,42 μmol/l;
EE8-9: 0,3μmol/l;
EE10-11: 0,42 μmol/l;
EE12: 0,5 μmol/l;
EE13: 0,67 μmol/l;
EE14-16: 0,3 μmol/l;
GOF: 0,55 μmol/l;
GOR: 0,7 μmol/l;
NBP: 0,38 μmol/l;
EGB: 0,45 μmol/l.
DIN:
EE1-2: 5,2 μmol/l;
EE3-6: 3,8 μmol/l;
EE7: 5,1 μmol/l;
EE8-9: 6,3 μmol/l;
EE10-11: 5,1 μmol/l;
EE12: 7,4 μmol/l;
EE13: 15,5 μmol/l;
EE14-16: 6,3 μmol/l;
GOF: 3,8 μmol/l;
GOR: 5,2 μmol/l;
NBP: 2,9 μmol/l;
EGB: 2,6 μmol/l.
DIP:
EE1-2: 0,6 μmol/l;
EE3-6: 0,59 μmol/l;
EE7: 0,3 μmol/l;
EE8-9: 0,37 μmol/l;
EE10-11: 0,3 μmol/l;
EE12: 0,43 μmol/l;
EE13: 0,52 μmol/l;
EE14-16: 0,37 μmol/l;
GOF: 0,59 μmol/l;
GOR: 0,41 μmol/l;
NBP: 0,25 μmol/l;
EGB: 0,29 μmol/l.
|
GES is determined via summer chlorophyll a concentration in seawater and summer phytoplankton wet weight biomass.
GES is achieved if indicator values are below threshold values in the assessment units:
Chl-a:
EE1-2: 3,7 mg/m3;
EE3-6: 2,7 mg/m3;
EE7: 1,6 mg/m3;
EE8-9: 2,4 mg/m3;
EE10-11: 1,6 mg/m3;
EE12: 3 mg/m3;
EE13: 4,5 mg/m3;
EE14-16: 2,4 mg/m3;
GOF: 2 mg/m3;
GOR: 2,7 mg/m3;
NBP: 1,7 mg/m3;
EGB: 1,9 mg/m3.
Phytoplankton biomass:
EE1-2: 0,67 mg/l;
EE3-6: 0,42 mg/l;
EE7: 0,44 mg/l;
EE8-9: 0,15 mg/l;
EE10-11: 0,44 mg/l;
EE12: 0,33 mg/l;
EE13: no threshold value set;
EE14-16: 0,15 mg/l;
GOF: 0,42 mg/l;
GOR: 0,33 mg/l;
NBP: 0,44 mg/l;
EGB: 0,44 mg/l. |
Estonia has determined GES under criteria D5C4 via summer-time Secchi depth transparency.
GES is achieved if the summer-time Secchi depth transparency is above the threshold values in the assessment units:
Summer-time Secchi depth transparency:
EE1-2: 3,6 m;
EE3-6: 4,5 m;
EE7: 6,5 m;
EE8-9: 4,9 m;
EE10-11: 6,5 m;
EE12: 4,2 m;
EE13: 3,2 m;
EE14-16: 4,9 m;
GOF: 5,5 m;
GOR: 5 m;
NBP: 7,1 m;
EGB: 7,6 m. |
GES under criteria D5C5 is determined via indicator 'oxygen debt' and 'presence of hypoxia in nearbottom layer of coastal waterbodies'.
Oxygen debt is open sea indicator. In Gulf of Riga there is no halocline, therefore it is not applicable for Gulf of Riga.
GES is achieved if the indicator 'oxygen debt' values are below threshold values in the assessment units:
Oxygen debt:
GOF: 8,66 mg/l;
GOR: no threshold value;
NBP: 8,66 mg/l;
EGB: 8,66 mg/l.
For indicator 'presence of hypoxia in nearbottom layer of coastal waterbodies' GES is achieved if no hypoxic events have been occurred in nearbottom layer of coastal waterbodies in the assessment period.
In addition to that indicator 'oxygen consumption' is under development. |
GES for criteria D5C6 is determined via indicator 'proportion of opportunistic species'.
GES is achieved if indicator values are below threshold values in the assessment units:
Proportion of opportunistic species:
EE1-2: 80 %;
EE3-11: 60 %;
EE12: 50 %;
EE13: 20 %;
EE14-16: 60 %;
Proportion of opportunistic species is coastal sea indicator, therefore not applicable for open sea areas. |
GES for criteria D5C7 is determined via three indicators: 'Depth distribution of phytobenthos', 'depth distribution of Fucus vesiculosus' and 'proportion of perennial species in benthic vegetation'.
GES is achieved if indicator values are above threshold values in the assessment units:
Depth distribution of phytobenthos:
EE1-2: 5 m;
EE3-7: 7,5 m;
EE8-9: no threshold values determined;
EE10-11: 7,5 m;
EE12: 6 m;
EE13: 2,5 m;
EE14-16: no threshold values determined.
Depth distribution of Fucus vesiculosus:
EE1-2: 2,5 m;
EE3-11: 3,5 m;
EE12: 2,5 m;
EE13: no threshold values determined;
EE14-16: 3,5 m.
Proportion of perennial species in benthic vegetation:
EE1-2: 42,5 %;
EE3-6: 77,4 %;
EE7: 45 %;
EE8-9: 35%;
EE10: 45 %;
EE11: 40 %;
EE12: 45 %;
EE13: 30 %;
EE14-16: 35 %.
Depth distribution of phytobenthos, depth distribution of Fucus vesiculosus and proportion of perennial species in benthic vegetation are coastal sea indicators, therefore not applicable for open sea areas. |
GES for criteria D5C8 is determined via zoobenthos community index.
GES is achieved if indicator values are below threshold values in the assessment units:
EE1-16: 0,5.
Zoobenthos community index is coastal sea indicator, therefore not applicable for open sea areas.
In addition to zoobenthos community index there is Helcom core indicator 'state of the soft-bottom macrofauna community' which can be used to determine GES under criteria D5C8. Currently this is not used because the threshold values for this indicator for Estonian marine assessment units have not been set yet. |
|||||
Determination date |
201807 |
201807 |
201807 |
201807 |
201807 |
201807 |
201807 |
|||||
Update type |
Modified from reported determination |
New determination |
New determination |
New determination |
New determination |
New determination |
New determination |
|||||
Justification for non-use of criterion |
D5C3 is secondary criteria and therefore not mandatory.
Currently three indicators have been regionally developed for assessing criteria D5C3.
HELCOM has developed Cyanobacterial bloom index, which is in pre-core indicator status. This has not been used in Estonian assessment due to lack of data and that the assessment methodology is not approved.
Under the project MARMONI cyanobacterial surface accumulation index (the CSA-index) has been developed. This has not been used in Estonian assessment due to lack of data and that the assessment methodology is not approved.
In addition, in the frames of HELCOM EUTRO OPER project, Chlorophyll-a, spring bloom intensity concentrations are determined as an indicator, however the threshold value is in development phase. This indicator has not been used in Estonian assessment due to lack of data and that the assessment methodology is not approved. |
|||||||||||
Justification for delay in setting EU/regional requirements |