Nutrients and the amount of algae in the Baltic Sea

Algaline monitors the fluctuations in the Baltic Sea ecosystem in real-time using several approaches. It combines studies onboard research vessels with high-frequency automated sampling onboard several merchant ships, satellite imagery, buoy recordings and traditional sampling in coastal waters.

algaline_routes
Figure 1. Routes of the ships participating in SYKE's Algaline monitoring project.
             

Algaline measures chlorophyll a -, phycocyanin- and CDOM-concentrations, salinity, temperature and turbidity in the surface water using automated flow-through systems installed onboard co-operating merchant ships. In addition, onboard one of the ships a CTD system probes the water column from, and samples are collected for oxygen and nutrient analyses.

Algaline project collects an important part of its data with an automated equipment onboard passenger ferries, other commercial ships or guard vessels. At the time three different ships participate in SYKE's Algaline-project. In addition to that, other research institutes coordinate two ships more.

Responsibility: SYKE (Finnish Environment Institute)

  • M/S Finnmaid (Helsinki–Travemünde)
  • M/S Silja Serenade (Helsinki–Tukholma)

Responsibility: SYKE and SMHI (Sveriges meteorologiska och hydrologiska institut)

  • M/S Tavastland (Oulu-Kemi-Lübeck)

Responsibility: EMI (Estonian Marine Institute)

  • M/S Silja Victoria (Tallinn-Stockholm)

Responsibility: MSI (Marine Systems Institute)

  • M/S Silja Europa (Tallinn-Helsinki)

Algaline has cooperation also with the Centres for Economic Developement, Transport and the Environment located in the coast of Finland, the Environment Centre of Helsinki and IOW (Das Leibniz-Institut für Ostseeforschung Warnemünde).

Real-time data from Algaline ships are published at Meriwiki.

The Amount of Phytoplankton in the Western Gulf of Finland

Chlorophyll_WGOF
Figure 2. The amount of phytoplankton in the open Western Gulf of Finland in 2019 compared to the average between 2000 and 2018. The green line describes  the weekly average of phytoplankton biomass (measured as chlorophyll a in mg/m-3) between 2000 and 2018, and  the orange dots describe the observations measured in 2019. The observations are made in the open sea.
     

The Amount of Phytoplankton in the Northern Baltic Proper

Chlorophyll_Northern Baltic Proper
Figure 3. The amount of phytoplankton in the Northern Baltic Proper in 2019 compared to the average between 2000 and 2018. The green line describes  the weekly average of phytoplankton biomass (measured as chlorophyll a in mg/m-3) between 2000 and 2018, and  the orange dots describe the observations measured in 2019. The observations  are made in the open sea.
      

The amount of Phytoplankton in Arkona Basin

Chlorophyll_Arkona Basin
Figure 4. The amount of phytoplankton in the Arkona Basin in 2019 compared to the average between 2000 and 2018. The green line describes  the weekly average of phytoplankton biomass (measured as chlorophyll a in mg/m-3) between 2000 and 2018, and  the orange dots describe the observations measured in 2019. The observations  are made in the open sea.
      

The Amount of Phosphate in the Western Gulf of Finland

Phosphate_WGF
Figure 5. The amount of phosphate in the open Western Gulf of Finland in 2019 compared to the average between 2000-2018. The blue line describes  the weekly average of  phosphate concentration in the seawater between 2000 and 2018, and  the red dots describe the observations measured in 2019. The observations  are made in the open sea.
            

The Amount of Nitrate in the Western Gulf of Finland

Nitrate_WGOF
Figure 6. The amount of nitrate in the open Western Gulf of Finland in 2019 compared to the average between 2000-2018. The brown line describes  the weekly average of  nitrate concentration in the seawater between 2000 and 2018, and  the orange dots describe the observations measured in 2019. The observations  are made in the open sea.
              

The Amount of Phosphate in the Northern Baltic Proper

Phosphate_NBP
Figure 7. The amount of phosphate in the Northern Baltic Proper in 2019 compared to the average between 2000-2018. The blue line describes  the weekly average of  phosphate concentration in the seawater between 2000 and 2018, and  the red dots describe the observations measured in 2019. The observations are made in the open sea.
                  

The Amount of Nitrate in the Northern Baltic Proper

Nitrate_NBP
Figure 8. The amount of nitrate in the Northern Baltic Proper in 2019 compared to the average between 2000-2018. The brown line describes  the weekly average of  nitrate concentration in the seawater between 2000 and 2018, and  the orange dots describe the observations measured in 2019. The observations  are made in the open sea.
                

The Amount of Phosphate in Arkona Basin

Phosphate_Arkona
Figure 9. The amount of phosphate in Arkona Basin in 2019 compared to the average between 2000-2018. The blue line describes  the weekly average of  phosphate concentration in the seawater between 2000 and 2018, and  the red dots describe the observations measured in 2019. The observations are made in the open sea.
                 

The Amount of Nitrate in Arkona Basin

Nitrate_Arkona
Picture 10. The amount of nitrate in Arkona Basin in 2019 compared to the average between 2000-2018. The brown line describes  the weekly average of  nitrate concentration in the seawater between 2000 and 2018, and  the orange dots describe the observations measured in 2019. The observations  are made in the open sea.
             

 

JericoNext-logo
Data access is partially supported by JericoNEXT EU-project.

 

Published 2014-10-15 at 16:40, updated 2019-11-21 at 15:24