Member State report / Art8 / 2018 / D5 / Black Sea

Report type Member State report to Commission
MSFD Article Art. 8 Initial assessment (and Art. 17 updates)
Report due 2018-10-15
GES Descriptor D5 Eutrophication
Region/subregion Black Sea
Reported by Member state
Member state
Bulgaria
Romania
Member state report
Marine reporting units MRUs used
  • BLK-BG-AA-EmineMaslennos
  • BLK-BG-AA-GalataEmine
  • BLK-BG-AA-KaliakraGalata
  • BLK-BG-AA-MaslennosRezovo
  • BLK-BG-AA-OpenSea
  • BLK-BG-AA-Shelf
  • BLK-BG-AA-SivriburunKaliakra
  • BLK_RO_RG_CT
  • BLK_RO_RG_MT01
  • BLK_RO_RG_TT03
Features Chemical
  • Eutrophication (179)
  • Eutrophication (54)
Element Transparency
  • D5C3 (2)
  • D5C4 (14)
Element Dissolved oxygen
  • D5C5 (1)
Element Benthic habitats - macrobenthic communities
  • D5C8 (6)
  • D5C8 (4)
Element Benthic habitats - macrophyte communities
  • D5C7 (35)
Element Benthic habitats - macrophyte communities - sensitive species
  • D5C7 (4)
Element Benthic habitats - opportunistic macroalgae
  • D5C6 (17)
  • D5C6 (1)
Element Chlorophyll-a
  • D5C2 (14)
  • D5C2 (4)
Element DIN
  • D5C1 (4)
Element DIP
  • D5C1 (1)
Element Dissolved ammonium nitrogen
  • D5C1 (14)
Element Dissolved inorganic phosphorus
  • D5C1 (14)
Element Dissolved nitrate nitrogen
  • D5C1 (14)
Element Dissolved nitrite nitrogen
  • D5C1 (14)
Element Molecular taxonomy of potentially toxic species
  • D5C3 (14)
Element Noctiluca scintillans
  • D5C3 (7)
  • D5C3 (6)
Element Nutrients (integrated)
  • D5C1 (3)
Element Oxygen saturation
  • D5C5 (10)
Element Photic limit
  • D5C4 (3)
Element TP
  • D5C1 (2)
Element2
  • Bottom oxygen in warm season
  • Warm season
Element sources No. of elements per level
  • EU (0)
  • National (179)
  • EU (19)
  • National (10)
Criteria and parameters used (number of parameters) D5 Eutrophication
Criteria and parameters used (number of parameters) D5C1 Nutrient concentrations (5.1, 5.1.1)
  • Other - DIP concentration in the water (spring) (7)
  • Other - DIP concentration in the water (summer) (7)
  • Other - N-NH4 concentration in the water (spring) (7)
  • Other - N-NH4 concentration in the water (summer) (7)
  • Other - N-NO2 concentration in the water (spring) (7)
  • Other - N-NO2 concentration in the water (summer) (7)
  • Other - N-NO3 concentration in the water (spring) (7)
  • Other - N-NO3 concentration in the water (summer) (7)
  • Concentration in water (4)
  • Other - Ammonium Concentration in water (2)
  • Other - Ammonium concentration in water (2)
  • Other - DIN concentration in water (1)
  • Other - DIP concentration in water (1)
  • Other - Nitrate Concentration in water (2)
  • Other - Nitrate concentration in water (2)
  • Other - Nitrite Concentration in water (2)
  • Other - Nitrite concentration in water (2)
Criteria and parameters used (number of parameters) D5C2 Chlorophyll-a concentration (5.2.1)
  • Other - Chlorophyll a concentration in the water (spring) (2)
  • Other - Chlorophyll a concentration in the water (summer) (1)
  • Other - Chlorophyll a concentration in the water (spring) (5)
  • Other - Chlorophyll a concentration in the water (summer) (6)
  • Concentration in water (4)
  • Other - Concentration in water Northern part (2)
  • Other - Concentration in water Southern part (2)
Criteria and parameters used (number of parameters) D5C3 Harmful algal blooms (5.2.4)
  • Other - Noctiluca scintillans biomass (9)
  • Other - Number of potentially toxic species (7)
  • Other - Number of sequences of potentially toxic species (7)
  • Other - Biomass cold season (5)
  • Other - Biomass warm season (4)
  • Other - Noctiluca scintillans biomass cold season (1)
  • Other - Noctiluca scintillans biomass warm season (1)
Criteria and parameters used (number of parameters) D5C4 Photic limit (5.2.2)
  • Other - Transparency of water (spring) (2)
  • Other - Transparency of water (summer) (2)
  • Other - Transparency of water (spring) (5)
  • Other - Transparency of water (summer) (5)
  • Transparency in water (6)
Criteria and parameters used (number of parameters) D5C5 Dissolved oxygen concentration (5.3.2)
  • Other - Oxygen saturation in the surface water (spring) (5)
  • Other - Oxygen saturation in the surface water (summer) (5)
  • Other - Saturation (1)
Criteria and parameters used (number of parameters) D5C6 Opportunistic macroalgae of benthic habitats (5.2.3)
  • Other - Proportion of sensitive and tolerant macroalgae species biomass (5)
  • Other - Proportion of tolerant macroalgae species biomass (5)
  • Other - Total projected cover of macroalgae tolerant species (lower infralittoral) (5)
  • Other - the proportion (%) of the wet biomass of the opportunistic macrolagae within a seagrass meadow (2)
  • Other - % (1)
  • Other - EI II (1)
Criteria and parameters used (number of parameters) D5C7 Macrophyte communities of benthic habitats (5.3.1)
  • Other - Ecological Index EI (2)
  • Other - Maximal depth distribution of Ericaria bosphoric (Cystoseira crinita F.bosphorica (1)
  • Other - Maximal depth distribution of Ericaria bosphorica (Cystoseira crinita (2)
  • Other - Maximal depth distribution of Ericaria bosphorica (Cystoseira crinita f.bosphorica (1)
  • Other - Maximal depth distribution of Ericaria bosphorica (Cystoseira crinitaf.bosphorica (1)
  • Other - Maximal depth distribution of Gongolaria barbata (Cystoseira barbata (4)
  • Other - Maximal depth distribution of Gongolaria barbata(Cystoseira barbata (1)
  • Other - Maximal depth distribution of Phyllophora crispa and other sciophylic sensitive macroalgae (lower infralitoral) (5)
  • Other - Proportion of sensitive macroalgae species biomass (5)
  • Other - Proportion of sensitive and tolerant macroalgae species biomass (5)
  • Other - Proportion of sensitive and tolerant macroalgae species cover (Ecological index- EQR-cover) (5)
  • Other - Total projected cover of macroalgae sensitive species of Phyllophora crispa and other sciophylic sensitive macroalgae (lower infralittoral) (5)
  • Other - the proportion (%) of the wet biomass of the sesnsitive species within a seagrass meadow (2)
Criteria and parameters used (number of parameters) D5C8 Macrofaunal communities of benthic habitats
  • Other - EQR M-AMBI(n) (6)
  • Other - M-AMBI (n) (3)
  • Other - M-AMBI(n) (1)
  • Other - M-AMBI*(n) (2)
  • Other - M-AMBI*(n) Modiolula (1)
  • Other - M-AMBI*(n) Mytillus (1)
Criteria and parameters used (number of parameters) 5.1.2 Nutrient ratios (silica, nitrogen and phosphorus)
Criteria and parameters used (number of parameters) 5.2 Direct effects of nutrient enrichment
Criteria and parameters used (number of parameters) 5.3 Indirect effects of nutrient enrichment
Threshold values % of parameters with values (no. of parameters)
78% (140)
100% (54)
Threshold value sources D5 Eutrophication
Threshold value sources D5C1 Nutrient concentrations (5.1, 5.1.1)
  • National (14)
Threshold value sources D5C2 Chlorophyll-a concentration (5.2.1)
  • National (5)
  • WaterFD (1)
Threshold value sources D5C3 Harmful algal blooms (5.2.4)
  • National (6)
Threshold value sources D5C4 Photic limit (5.2.2)
  • National (3)
Threshold value sources D5C5 Dissolved oxygen concentration (5.3.2)
Threshold value sources D5C6 Opportunistic macroalgae of benthic habitats (5.2.3)
  • National (10)
  • WaterFD (2)
  • National (1)
  • WaterFD (1)
Threshold value sources D5C7 Macrophyte communities of benthic habitats (5.3.1)
  • National (35)
  • WaterFD (4)
Threshold value sources D5C8 Macrofaunal communities of benthic habitats
  • WaterFD (6)
  • National (4)
  • WaterFD (3)
Threshold value sources 5.1.2 Nutrient ratios (silica, nitrogen and phosphorus)
Threshold value sources 5.2 Direct effects of nutrient enrichment
Threshold value sources 5.3 Indirect effects of nutrient enrichment
Value achieved upper % of parameters with values (no. of parameters)
58% (105)
98% (53)
Value achieved lower % of parameters with values (no. of parameters)
56% (102)
75% (41)
Value unit/Value unit other (count of use per criterion) D5 Eutrophication
Value unit/Value unit other (count of use per criterion) D5C1 Nutrient concentrations (5.1, 5.1.1)
  • microgram per litre (21)
  • micromole per litre (35)
  • micromole per litre (18)
Value unit/Value unit other (count of use per criterion) D5C2 Chlorophyll-a concentration (5.2.1)
  • microgram per litre (14)
  • microgram per litre (8)
Value unit/Value unit other (count of use per criterion) D5C3 Harmful algal blooms (5.2.4)
  • percentage (9)
  • microgram per litre (11)
Value unit/Value unit other (count of use per criterion) D5C4 Photic limit (5.2.2)
  • metre (14)
  • metre (5)
Value unit/Value unit other (count of use per criterion) D5C5 Dissolved oxygen concentration (5.3.2)
  • percentage (10)
  • percentage (1)
Value unit/Value unit other (count of use per criterion) D5C6 Opportunistic macroalgae of benthic habitats (5.2.3)
  • percentage (7)
  • ratio (10)
  • percentage (1)
Value unit/Value unit other (count of use per criterion) D5C7 Macrophyte communities of benthic habitats (5.3.1)
  • metre (15)
  • percentage (7)
  • ratio (15)
  • score (2)
Value unit/Value unit other (count of use per criterion) D5C8 Macrofaunal communities of benthic habitats
  • Ecological Quality Ratio (5)
  • dmnl (5)
  • ratio (2)
Value unit/Value unit other (count of use per criterion) 5.1.2 Nutrient ratios (silica, nitrogen and phosphorus)
Value unit/Value unit other (count of use per criterion) 5.2 Direct effects of nutrient enrichment
Value unit/Value unit other (count of use per criterion) 5.3 Indirect effects of nutrient enrichment
Proportion threshold values Range of % values (no. of parameters)
Range: 90-91% (102 of 179 parameters)
Range: 10-100% (54 of 54 parameters)
Proportion values achieved Range of % values (no. of parameters)
Range: 1-100% (119 of 179 parameters)
Range: 20-100% (52 of 54 parameters)
Proportion threshold value units
% area of MRU achieving threshold value
% of stations achieving threshold value
% of population achieving threshold value
% of samples achieving threshold value
Trends No. of trends per category
  • Not relevant (0 or 0.0%)
  • Stable (6 or 3.4%)
  • Unknown (173 or 96.6%)
  • Not relevant (2 or 3.7%)
  • Stable (38 or 70.4%)
  • Unknown (14 or 25.9%)
Parameters achieved No. of parameters per category
  • No (59 or 33.0%)
  • Not assessed (53 or 29.6%)
  • Unknown (7 or 3.9%)
  • Yes (60 or 33.5%)
  • No (29 or 53.7%)
  • Not assessed (0 or 0.0%)
  • Unknown (0 or 0.0%)
  • Yes (25 or 46.3%)
Related indicators
  • BLK-BG-D5C1-NutrientsConc
  • BLK-BG-D5C2-CHL
  • BLK-BG-D5C3_NsB%
  • BLK-BG-D5C3_PTPh-MB
  • BLK-BG-D5C4-SecchiDepth
  • BLK-BG-D5C5-OS
  • BLK-BG-D5C6-Cov_tol_sp-low_inf
  • BLK-BG-D5C6-EI_biom (Ecological index-EQR biomass)
  • BLK-BG-D5C6-EI_biom (Ecological index_EQR biomass)
  • BLK-BG-D5C6-Prop_tol-sp_biom
  • BLK-BG-D5C8_M-AMBI(n)
  • BLK_BG_D5C6_Seagrass
  • BLK_BG_D5C7- Cov_sens_sp_low_inf
  • BLK_BG_D5C7- EI_cov
  • BLK_BG_D5C7- Max_depth_distr_.G_barb.
  • BLK_BG_D5C7- Max_depth_distr_E. bosph.
  • BLK_BG_D5C7- Max_depth_distr_E..bosph.
  • BLK_BG_D5C7- Max_depth_distr_E.bosph
  • BLK_BG_D5C7- Max_depth_distr_E.bosph.
  • BLK_BG_D5C7- Max_depth_distr_G.barb
  • BLK_BG_D5C7- Max_depth_distr_G.barb.
  • BLK_BG_D5C7- Max_depth_distr_sens_sp
  • BLK_BG_D5C7- Max_depth_distr_sens_sp_low._inf.
  • BLK_BG_D5C7- Max_depth_distr_sens_sp_low.inf.
  • BLK_BG_D5C7- Max_depth_distr_sens_sp_low_inf
  • BLK_BG_D5C7- Prop_sens-sp_biom
  • BLK_BG_D5C7-EI _biom (Ecological index - biomass)
  • BLK_BG_D5C7_Seagrass_EI
  • BLK_BG_D5C7_Seagrass_ESGI
  • 5.1.1
  • 5.1.2
  • 5.2
  • 5.3
  • 5.3 cold season
  • 5.3 warm season
  • 5.4
  • 5.6
  • 5.8
  • BLK-RO-RG-CT Cold Season
  • BLK-RO-RG-CT Warm Season
  • BLK-RO-RG-MT01 Cold Season
  • BLK-RO-RG-MT01 Warm season
  • Offshore circalittoral Modiolula
  • Offshore circalittoral muds Mytillus
Criteria status No. of criteria per category
  • Good (63 or 35.2%)
  • Not assessed (24 or 13.4%)
  • Not good (72 or 40.2%)
  • Unknown (20 or 11.2%)
  • Good (21 or 38.9%)
  • Not assessed (0 or 0.0%)
  • Not good (33 or 61.1%)
  • Unknown (0 or 0.0%)
Element status No. of elements per category
  • Good (63 or 35.2%)
  • Not assessed (24 or 13.4%)
  • Not good (80 or 44.7%)
  • Unknown (12 or 6.7%)
  • Good (13 or 44.8%)
  • Not assessed (0 or 0.0%)
  • Not good (16 or 55.2%)
  • Unknown (0 or 0.0%)
Integration rule type for parameters
OTH (54 or 100.0%)
Integration rule description for parameters
BEAST integrates parameters based on their weight. In this case, we considered causes (25%-TP, 25%-NO2, 25%-NO3, 25%_NH4) and effects (50%Chlorophyll and 50% transparency) against national legislation (Ord.161/2006).
BEAST integrates parameters based on their weight. In this case, we considered causes (25%TP, 25%NO3, 25%NO2, 25% NH4)) and effects (50%Chlorophyll and 50% transparency) against national legislation (Ord.161/2006).
BEAST integrates parameters based on their weight. In this case, we considered causes (50% DIP and 50%DIN) and effects (50%Chlorophyll and 50% transparency) against GES.
Integration rule type for criteria
OOAO (164 or 100.0%)
OTH (54 or 100.0%)
Integration rule description for criteria
TRIX and EQR M-AMBI(n) ecological indexes were used to integrate eutrophication indicators in the coastal MRUs. TRIX taking into consideration causes -nutrients (DIP and DIN) and effects (chlorophyll a and oxygen saturation) (Vollenweider et al. (1998)) and M-AMBI(n) (Sigovini et al., 2013) was used for assessing adverse effects on benthic macroinvertebrates.
BEAST - Black Sea Eutrophication Assessment Tool. A tool similar to HEAT (HELCOM) developed for the Black Sea into Baltic2Black Project. Due to the different area, parameters, and features, BEAST was calculated taking into consideration causes - nutrients (DIP and DIN) and effects (chlorophyll a and transparency) calculated for each station. Between parameters and criteria, BEAST uses OneOutAllOut principle and EQR and gives a qualitative score - High, Good, Moderate, Poor and Bad. The threshold between Good and Moderate is considered as GES.
BEAST - Black Sea Eutrophication Assessment Tool. A tool similar to HEAT (HELCOM) developed for the Black Sea into Baltic2Black Project. Due to the different area, parameters, and features, BEAST was calculated taking into consideration causes - nutrients (TP, nitrate, nitrite, and ammonia) and effects (chlorophyll a and transparency) calculated for each station. Between parameters and criteria, BEAST uses OneOutAllOut principle and EQR and gives a qualitative score - High, Good, Moderate, Poor and Bad. The threshold between Good and Moderate is considered as GES.
GES extent threshold
  • 90.00 (179 of 179, or 100.0%)
  • 75.00 (54 of 54, or 100.0%)
GES extent achieved
  • 10.00 (28 of 148, or 18.9%)
  • 20.00 (28 of 148, or 18.9%)
  • 56.00 (32 of 148, or 21.6%)
  • 6.00 (32 of 148, or 21.6%)
  • 72.00 (28 of 148, or 18.9%)
  • 10.00 (19 of 38, or 50.0%)
  • 38.00 (19 of 38, or 50.0%)
GES extent unit
  • Proportion of area in good status (179 of 179, or 100.0%)
  • Proportion of area in good status (54 of 54, or 100.0%)
GES achieved Eutrophication
  • GES expected to be achieved later than 2020, no Article 14 exception reported (148)
  • Unknown (31)
  • GES expected to be achieved later than 2020, no Article 14 exception reported (54)
Assessment period
2012-2017 (151 or 84.4%)
2012-2107 (28 or 15.6%)
2012-2017 (54 or 100.0%)
Related pressures
  • Changes to hydrological conditions (64 or 20.0%)
  • Input of nutrients - diffuse sources, point sources, atmospheric deposition (64 or 20.0%)
  • Input of organic matter - diffuse sources and point sources (64 or 20.0%)
  • Loss of, or change to, natural biological communities due to cultivation of animal or plant species (64 or 20.0%)
  • Physical disturbance to seabed (64 or 20.0%)
  • Input of nutrients - diffuse sources, point sources, atmospheric deposition (54 or 100.0%)
Related targets
10
6