Dissolved organic matter in the Baltic Sea

摘要: Abstract Several factors highlight the importance of dissolved organic matter (DOM) in coastal ecosystems such as Baltic Sea: 1) DOM is main energy source for heterotrophic bacteria surface waters, thus contributing to productivity and trophic state bodies water. 2) functions a nutrient source: Sea, more than one-fourth bioavailable nutrients can occur form riverine inputs water during summer. Thus, also supports primary production, both directly (osmotrophy) indirectly (via remineralization). 3) Flocculation subsequent deposition terrestrial within river estuaries may contribute production oxygen consumption sediments. 4) Chromophoric DOM, which one major absorbers light entering contributes highly color, affecting photosynthetic depth well recreational value Sea. Despite its large-scale Sea ecosystem, has been minor interest compared with inorganic loadings. Information on concentrations dynamics accumulated since late 1990s, but it still sporadic. This review provides coherent view current understanding