Seasonal succession of dominating phytoplankton groups: GES is achieved if seasonal succession of dominating phytoplankton groups in assessment units are above threshold values (ratio): BAL-EE-AA-GR-Coastal: 0.68 BAL-EE-AA-GF-Opensea: 0.70 BAL-EE-AA-EGB-Opensea: 0.68 BAL-EE-AA-GR-Opensea: 0.68 BAL-EE-AA-EE_2;BAL-EE-AA-EE_3;BAL-EE-AA-EE_5;BAL-EE-AA-EE_6: 0.65 BAL-EE-AA-EE_1: 0.66 BAL-EE-AA-NBP-Opensea: 0.70

Zooplankton mean size and total stock (MSTS). The Zooplankton Mean Size and Total Stock (MSTS) indicator is comprised of two interrelated values. The environmental condition is considered good if both indicator values exceed the threshold levels for the respective assessment unit. The threshold values for each indicator component (mean size and total stock) are specific for each assessment unit (as described under D1P): Zooplankton mean size and total stock (MSTS) (mean size (µg wet weight ind-1) / total stock (mg m-3)): BAL-EE-AA-GR-Opensea: 4.7 / 253 BAL-EE-AA-EGB-Opensea: 14.1 / 104 BAL-EE-AA-NBP-Opensea: 9.8 / 123 BAL-EE-AA-GF-Opensea: 8.6 / 125

GES is determined via fish community trophic index. GES is achieved if the index value is >0,6.

GES is determined via two indicators: 1) abundance of coastal fish key functional groups: abundance of cyprinids in monitoring catches; 2) abundance of coastal fish key functional groups: abundance of piscivores in monitoring catches. GES is achieved if both of the indicator values are >0,6. In addition, GES is determined via balance of lower guilds. GES threshold value is two times of the long term standard deviation. If the indicator value differs more than two times the long term standard deviation the GES is not achieved. GES = > 0,3 ja < 0,7.

GES is determined via mean maximum length across all fish species found in monitoring catches (MMLI). GES is achieved if indicator value is >0,6. In addition, GES is determined via abundance index of large (TL>250 mm) perch (Perca fluviatilis) in monitoring catches. GES is achieved if index value is >0,6.