Report of the Study Group on Baltic Sea Productivity Issues in

6,37
MB support of the BSRP (SGPROD)

67
stron

3509
ID International Council for the Explorations of the Sea

2004
rok

Contents

0 Executive summary 5

1 Meeting objectives.5

2 BSRP project overview6

3 Presentations.7

3.1 Assessing the productivity of Large Marine Ecosystems.7

3.2 Trophic transfers..8

3.2.1 Monitoring.13

3.3 Data and information for modelling and assessment16

4 Any other business..17

4.1 Conference participation17

4.1.1 Baltic Sea Ecosystem structure and dynamics – consequences of physical and anthropogenic

forcing? ..17

4.1.2 Theme Session on Regional Integrated Assessments17

4.1.3 Material and energy flows in trophic networks of the Baltic Sea ecosystem.17

5 Discussion of the Terms of Reference.17

5.1 TOR a – Commence a summary of the evidence for links between land-based nutrient inputs

and long-term changes of both productivity and biodiversity in eutrophied areas of the Baltic Sea17



5.2 TOR b – Commence development of a system of indicators that characterize productivity at

different trophic levels in the Baltic Sea that are important to ecosystem-based management taking

into account the work already undertaken by ACE and the EEA..21

5.2.1 Indicators and Ecological Quality Objectives21

5.2.2 Indicator development.23

5.3 TOR c – Establish an inventory of available productivity data and characterize their use25

5.4 TOR d – Identify information gaps along important trophic transfers in the Baltic Sea

ecosystem.31

5.5 TOR e – study the feasibility and efficiency of automated methods for productivity data

collection (e.g., satellite imagery, ships of opportunity, profiling instrument platforms etc.), in

collaboration with BOOS.33

5.5.1 Satellite imagery.33

5.5.2 Unattended fixed stations (buoy systems, light-vessels, etc.)34

5.5.3 Ships of opportunity/ferrybox systems.34

5.5.4 Continuous plankton recorders.34

5.5.5 Undulating towed vehicles..35

5.6 TOR f – recommend measures to adapt the existing measurement programmes to improve the

assessment of Baltic Sea productivity within the framework of ecosystem-based marine

management35

5.7 TOR g – prepare a workplan, including a schedule for deliverables, in cooperation with other

BSRP Groups; including considerations of potential contributions to 2006 Theme Session on

Regional Integrated Assessments.36

6 Annexes.39

Annex 1 Copepods – role in the transfer of primary production to pelagic fish. Nutrient load,

trophical structure and productivity..39

Annex 2 Theme session proposal.53

Annex 3 Alg@line – Joint Operational Unattended Phytoplankton Monitoring in the Baltic Sea54

Annex 4 Utilization of CPR for zooplankton monitoring of the Baltic Sea59

Annex 5 Agenda..61

Annex 6 Working groups.63

Annex 7 List of participants64

Annex 8 Draft resolutions .66