Member State report / Art9 / 2018 / D7 / Black 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 | D7 Hydrographical changes |
| Region/subregion | Black Sea |
| Reported by | Member state |
| Member state | Bulgaria |
Romania |
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| Member state report | |||
| Marine reporting units | MRUs used |
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| Structure, functions and processes of marine ecosystems: Habitats | Benthic broad habitats |
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| Structure, functions and processes of marine ecosystems: Habitats | Infralittoral coarse sediment |
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| Structure, functions and processes of marine ecosystems: Habitats | Infralittoral mixed sediment |
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| Structure, functions and processes of marine ecosystems: Habitats | Infralittoral rock and biogenic reef |
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| Structure, functions and processes of marine ecosystems: Habitats | Infralittoral sand |
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| Structure, functions and processes of marine ecosystems: Ecosystems, including food webs | Wave regime |
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| Anthropogenic pressures on the marine environment: Physical | Changes to hydrological conditions |
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| Pressure levels and impacts in marine environment: Physical and hydrological | Hydrographical changes |
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| GES description | D7 Hydrographical changes | ||
| GES description | D7C1 Permanent alteration of hydrographical conditions (7.1, 7.1.1) | The criterion was evaluated as a spatial extent of permanent alteration of hydrographical conditions (changes in wave action) to the seabed and water column, associated in particular with physical loss of the natural seabed as per Decision 2017/848/ЕU. In compliance with Directive 2017/845/ЕC and Decision 2017/848/ЕU the changes in hydrographical conditions were assessed using newly developed methodology and indicator, which are based on comparison of pressures on the marine environment estimated for a selected reference period (reflecting the earliest available shore state unaffected by human interference) with that of the reporting period 2012-2017. As a reference year was adopted 1983, while evaluation periods are 1983-2017 and 2012-2017. The assessment outcome contributes to assessment of D7C2. |
Spatial extent and distribution of permanent alteration of hydrographical conditions to the seabed and water column (changes in salinity, temperature and sea level), associated in particular with physical loss of the natural seabed does not adversely affect the marine environment. |
| GES description | D7C2 Adverse effects from permanent alteration of hydrographical conditions (7.2, 7.2.1, 7.2.2) | Spatial extent of each benthic habitat type adversely affected (physical and hydrographical characteristics and associated biological communities) due to permanent alteration of hydrographical conditions. Threshold values for adverse effects: EQR M-AMBI(n) ≥ 0.68 Extent threshold not required. The outcomes of assessment of criterion D7C2 (an estimate of the extent of adverse effect per habitat type in each assessment area) contribute to the assessment of criterion D6C5. The spatial extent of macroalgal and seagrass habitats adversely affected (physical and hydrographical characteristics and associated biological communities) due to permanent alteration of hydrographical conditions. |
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| Justification for non-use of criterion | |||
| Justification for delay in setting EU/regional requirements | D7C1: As per document GES_17-2016-02: Draft guidance for assessments under Article 8 of the MSFD the secondary criterion D7C1 does not have threshold values and informs assessment of D7C2. No judgement on ‘good’ or ‘not good’ status is required. D7C2: Currently, a threshold value of adversely affected seagrass habitat area is not applied due to the lack of a relevant spatial coverage of the point assessments for impact on seagrasses. In addition, spatial data for seagrass meadows extent from a pristine period are missing. Baseline spatial coverage of all seagrass meadows to be used instead is also missing (data for different meadows are available from different years). Criteria for meadow-specific "adverse" effects to be developed. |