How can we tackle broader and more-detailed habitats within the same assessment Estonian test case Georg Martin & Kaire Torn
Testing of the proposed aggregation methodology. Estonian test case. • Location: Väinameri (West-Estonian Archipelago Sea) • Number of data points: 3521 • Area: 1726 km 2 • Number of HUB level 5 habitats: 20 • Number of HUB level 4 habitats: 10 • Number of HUB level 3 habitats: 5 • Assesment method: HELCOM indicator “Condition of benthic habitats” version May/2017
Proposal for overall assessment matrix for indicator “Condition of benthic habitats” Status Parameter SubGES, SubGES, GES close to GES far from GES Area Stable or increasing Decline <10% Decline >10% Extent Stable or increasing Decline <10% Decline >10% ≥90% of area or <90-75% of area or >25% of area or Quality* stations in good stations in good stations in bad status status status One or more Overall assessment** All "green" "amber", but no One or more "red" "red" * The median value of indicators decides the quality of habitat when several indicators were used. ** The parameter assessed to have worst status decides the overall status.
HUB level 5 code HUB level 5 Area km2 Extent km2 AA.A1C Baltic photic rock and boulders characterised by perennial algae 14 325 AA.A1S Baltic photic rock and boulders characterised by annual algae 13 231 AA.A2W Baltic photic rock and boulders characterised by 3 17 microphytobenthic organisms and grazing snails AA.H1B Baltic photic muddy sediment characterized by submerged rooted 47 1251 plants AA.H1Q Baltic photic muddy sediment characterized by stable 93 1670 aggregations of unnatached perennial vegetation AA.H1V Baltic photic muddy sediment characterized by mixed epibenthic 111 1785 macrocommunity AA.H3L Baltic photic muddy sediment characterized by infaunal bivalves 556 1925 AA.I1C Baltic photic coarse sediment characterized by perennial algae 1 12 AA.I3L Baltic photic coarse sediment characterized by infaunal bivalves 3 25 AA.J1A Baltic photic sand characterized by emergent vegetation 81 567 AA.J1B Baltic photic sand characterized by submerged rooted plant 222 1922 AA.J1Q Baltic photic sand characterized by stable aggregations of 42 120 unnatached perennial vegetation AA.J1S Baltic photic sand characterized by annual algae 76 520 AA.J1V Baltic photic sand characterized by mixed epibenthic 5 12 macrocommunity AA.J3L Baltic photic sand characterized by infaunal bivalves 165 1890 AA.M1B Baltic photic mixed substrate characterized by submerged rooted 10 126 plants AA.M1C Baltic photic mixed substrate characterized by perennial algae 223 1921 AA.M1S Baltic photic mixed substrate characterized by annual algae 43 1915 AA.M1V Baltic photic mixed substrate characterized by mixed epibenthic 5 13 macrocommunity AA.M2W Baltic photic mixed substrate characterized by microphytobenthic 15 85 organisms and grazing snails
How to translate change in area or extent to EQR? Status Assessment result EQR GES Increasing 0.875 GES Stable 0.625 SubGES, close Decline <10% 0.375 to GES SubGES, far Decline >10% 0.125 from GES Transition of status of parameters of area or extent to EQR values (based on BalticBOOST, 2016).
Quality (% of area or stations HUB level 5 code HUB level 5 Area Extent in good status) AA.A1C Baltic photic rock and boulders characterised by perennial algae stable decrease 85 AA.A1S Baltic photic rock and boulders characterised by annual algae increase increase 100 Baltic photic rock and boulders characterised by microphytobenthic organisms AA.A2W and grazing snails stable stable 90 AA.H1B Baltic photic muddy sediment characterized by submerged rooted plants stable stable 95 Baltic photic muddy sediment characterized by stable aggregations of AA.H1Q unnatached perennial vegetation stable stable 85 Baltic photic muddy sediment characterized by mixed epibenthic AA.H1V macrocommunity stable stable 90 AA.H3L Baltic photic muddy sediment characterized by infaunal bivalves stable stable 90 AA.I1C Baltic photic coarse sediment characterized by perennial algae stable stable 85 AA.I3L Baltic photic coarse sediment characterized by infaunal bivalves stable stable 90 AA.J1A Baltic photic sand characterized by emergent vegetation stable stable 95 AA.J1B Baltic photic sand characterized by submerged rooted plant stable stable 95 Baltic photic sand characterized by stable aggregations of unnatached AA.J1Q perennial vegetation stable stable 85 AA.J1S Baltic photic sand characterized by annual algae increase increase 100 AA.J1V Baltic photic sand characterized by mixed epibenthic macrocommunity stable stable AA.J3L Baltic photic sand characterized by infaunal bivalves stable stable 90 AA.M1B Baltic photic mixed substrate characterized by submerged rooted plants stable stable 90 AA.M1C Baltic photic mixed substrate characterized by perennial algae stable decrease 85 AA.M1S Baltic photic mixed substrate characterized by annual algae increase increase 100 Baltic photic mixed substrate characterized by mixed epibenthic AA.M1V macrocommunity stable stable 90 Baltic photic mixed substrate characterized by microphytobenthic organisms and grazing snails AA.M2W stable stable 95
How to transfer percentage of area/percentage of stations in GES to EQR Area/stations EQR in GES 100% 1.0 90% 0.8 75% 0.6 0.4 37.5% 0.2 0 0% Transition of percentage of area or stations in good status to EQR values.
HUB HUB level 5 name Area EQR Extent EQR Quality Overall level 5 EQR assessme code nt EQR AA.A1C Baltic photic rock and boulders characterised by perennial algae 0.625 0.375 0.53 0.375 AA.A1S Baltic photic rock and boulders characterised by annual algae 0.875 0.875 1 0.875 AA.A2W Baltic photic rock and boulders characterised by microphytobenthic 0.625 0.625 0.6 0.600 organisms and grazing snails AA.H1B Baltic photic muddy sediment characterized by submerged rooted plants 0.625 0.625 0.8 0.625 AA.H1Q Baltic photic muddy sediment characterized by stable aggregations of 0.625 0.625 0.53 0.530 unnatached perennial vegetation AA.H1V Baltic photic muddy sediment characterized by mixed epibenthic 0.625 0.625 0.6 0.600 macrocommunity AA.H3L Baltic photic muddy sediment characterized by infaunal bivalves 0.625 0.625 0.6 0.600 AA.I1C Baltic photic coarse sediment characterized by perennial algae 0.625 0.625 0.53 0.530 AA.I3L Baltic photic coarse sediment characterized by infaunal bivalves 0.625 0.625 0.6 0.600 AA.J1A Baltic photic sand characterized by emergent vegetation 0.625 0.625 0.8 0.625 AA.J1B Baltic photic sand characterized by submerged rooted plant 0.625 0.625 0.8 0.625 AA.J1Q Baltic photic sand characterized by stable aggregations of unnatached 0.625 0.625 0.53 0.530 perennial vegetation AA.J1S Baltic photic sand characterized by annual algae 0.875 0.875 1 0.875 AA.J1V Baltic photic sand characterized by mixed epibenthic macrocommunity 0.625 0.625 0.6 0.600 AA.J3L Baltic photic sand characterized by infaunal bivalves 0.625 0.625 0.6 0.600 AA.M1B Baltic photic mixed substrate characterized by submerged rooted plants 0.625 0.625 0.6 0.600 AA.M1C Baltic photic mixed substrate characterized by perennial algae 0.625 0.375 0.53 0.375 AA.M1S Baltic photic mixed substrate characterized by annual algae 0.875 0.875 1 0.875 AA.M1V Baltic photic mixed substrate characterized by mixed epibenthic 0.625 0.625 0.6 0.600 macrocommunity AA.M2W Baltic photic mixed substrate characterized by microphytobenthic 0.625 0.625 0.8 0.625 organisms and grazing snails
Result of aggregation of assessment result using all HUB level 5 habitats HUB level 5 code Level 5 EQR HUB level 4 code Level 4 EQR HUB level 3 code Level 3 EQR AA.A1C 0.375 AA.A1 0.625 AA.A 0.613 AA.A1S 0.875 AA.A2W 0.600 AA.A2 0.600 AA.H1B 0.625 AA.H1 0.585 AA.H1Q 0.530 AA.H 0.593 AA.H1V 0.600 AA.H3L 0.600 AA.H3 0.600 AA.I1C 0.530 AA.I1 0.530 AA.I 0.565 AA.I3L 0.600 AA.I3 0.600 AA.J1A 0.625 AA.J1B 0.625 AA.J1 0.601 AA.J1Q 0.530 AA.J 0.601 AA.J1S 0.625 AA.J1V 0.600 AA.J3L 0.600 AA.J3 0.600 AA.M1B 0.600 AA.M1C 0.375 AA.M1 0.613 AA.M1S 0.875 AA.M 0.619 AA.M1V 0.600 AA.M2W 0.625 AA.M2 0.625
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