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Productive surface waters (Chl-a) - satellite based (Baltic sea)
Springtime Chl-a concentration is here used as a proxy for productive surface waters. In the Baltic Sea Impact Index (BSII), areas with high springtime phytoplankton production... -
Herring and Sprat abundance HOLAS 3 (Baltic sea)
The maps of herring and sprat relative abundance are based on the Baltic International acoustic surveys (BIAS), years 2016-2020 (ICES WGBIFS reports), reported as millions of...