Ecostat meeting - Ispra 15 - 16 March 2006 Status Baltic Sea GIG By Henning Karup, Denmark Co-ordinator Ecostat meeting - Ispra 15 - 16 March 2006

Baltic GIG meeting January 2006 Progress on: Phytoplankton - chlorophyll a - development of response curve - results from national assessment methods Master list of species and comparison of benthic fauna indices

Good/moderate boundary Baltic GIG: Phytoplankton – chlorofyll a intercalibration EXAMPLE Type B XX Sites Borderline in Intercalibration network database Reference value Calculated value 1995 – 2000 2000 – 2004 Time period for ref values Country 1 classifikation Country 2 Country 3 Country 4 1 2 3 4 5 6 H/G G/M 1,0 2,0 1,5 1,7 2,5 1,2 2,1 3,0 2,9 2,4 3,5 1,9 2,6 2,2 1904-1911 1903-1912 1920-1930 1956-1960 1932-1950 1960-1962 G M H M/P Classifikation table Type B XX High/good boundary Good/moderate boundary Period Country 1 1,5 2 May – September Country 2 1,7 2,2 June – September Country 3 2,5 4 June - September Country 4 1,2 1,6

All data (GE,DK,SE,EST) Oligohaline (SE,EST) Mesohaline (GE,DK) Baltic GIG B12

Baltic GIG meeting January 2006 Macrophytes: Macroalgae: intercalibration between Finland and Sweden Angiosperms: intercalibration between Germany and Denmark