CW-TW Intercalibration work progress Fuensanta Salas Herrero, CW-TW IC Coordinator Warsaw, 16-17 March 2016

CW-TW IC draft results 2. Remaining issues

FROM THE LAST ECOSTAT MEETING, 7 WORKING GROUPS HAVE ALMOST COMPLETED THE INTERCALIBRATION BALTIC GIG PHYTOPLANKTON (Common types BC4,BC9) BALTIC BENTHIC INVERTEBRATES (Common type BC5) NEA GIG SEGRASSES (Common type NEA 1/26) NEA GIG CW PHYTOPLANKTON (NEA 1/26, NEA 7, NEA 3/4

BALTIC SEA GIG PHYTOPLANKTON BC4 (EE,LV) Harmonisation on Clh a boundaries completed. Clh a data Pressures data (TN and TP) EE: 44 Samples (June-Sept) LV: 92 samples (June-Sept)

BALTIC SEA GIG PHYTOPLANKTON BC4 (EE,LV)

BALTIC SEA GIG PHYTOPLANKTON BC4 BENCHMARK STANDARISATION

BALTIC SEA GIG PHYTOPLANKTON BC4 COMPARABILITY ANALYSES National boundaries exceeding a biass of 0.25 class equivalents should be adjusted to fall inside this permitted level of deviation. The boundary biass analysis showed that boundaries adjustments are not neccesary

BALTIC SEA GIG PHYTOPLANKTON BC4 Draft Report provided Once the final report is completed will be sent to review panel (may be it is not necessary)

BALTIC SEA GIG PHYTOPLANKTON BC9 (EE,FI,SE)

Comparison of data set for common period (July-August)

Along the SE coast, the northern stations have lower salinities as a result of influence from south-ward current from the Bothnian Sea. Along the FI coast, the eastern stations have the lowest salinities, reflecting influence from the Gulf of Finland. Thus, the different freshwater sources can explain these very different gradients. Importantly, it can be assumed that the influence from the Gulf of Finland has a stronger anthropogenic component than the influence from the Bothnian Sea. However, part of the influence from the Gulf of Finland may also be natural.

BALTIC SEA GIG PHYTOPLANKTON BC9 (EE,FI,SE) Justifications provided for not changing reference conditions and boundaries To be reviewed by the review panel

BALTIC SEA GIG BENTHIC INVERTEBRATES BC5(LV,LT, PL) Poland has not participated (only one station/three samples) LT-LV: Same method (BQI), but different boundaries

Physico- chemical data Data set overview MS Biological data Physico- chemical data Pressure data LT 83 data LV 119 data

BC5 Benchmark standarisation: Alternative benchmark sites (>15). The national assessments only differ at (relatively) undisturbed conditions but converge at the more disturbed end, so, each national EQR value was divided by the median of the EQR at benchmark sites of the subtype from which the data originate.

Comparability analyses: IC Option 3 National boundaries exceeding a bias of 0.25 class equivalents should be adjusted to fall inside this permitted level of deviation. No adjustments are necessary

NEA GIG CW-TW SEAGRASSES

Continuos benchmarking

Comparability analyses: IC Option 3

Boundaries adjustments proposed, but it is neccesary to check again the results It is neccesary to introduce corrections in the technical report All MSs shoul fill in the information requested in the technical report

NEA GIG CW harmonization Clh a

BALTIC GIG CW Phytoplankton (Common types BC1, BC6) BC6:Work completed, they have to provide the technical report BC1: work in progress/end May CW Benthic invertebrates (BC7): work in progress/end May TW Phytoplankton (BT1): Work completed, they have to provide the report TW Fish: Methods developed and validated but it is necessary more data (Ic in the future)

BALTIC GIG TW Macrophytes: Justifications for not intercalibrating TW Benthic invertebrates: Working for the development of methods

NEA GIG 1.TW Phytoplankton harmonization of Clh a boundaries 2. CW-TW Seagrasses: draft report provided but results have to be checked 3. CW Benthic Invertebrates (Common type 3/4): Work completed but it is still necessary the MSs agreement 4- TW Benthic invertebrates: Difficulties with standardisation-Continuos benchmarking- no common pressure parameter. 5- Saltmarshes: Expected results end May

MED GIG 1.MED GIG Type IIIE: Report provided but results have to be checked. 2. MED GIG TW Fish (IT-GR): Italy has developed a WFD compliance method, and already validated GR method is still under development (deadline for providing the method-30 April)

THANK YOU!!