Long-term development of inorganic nutrients and chlorophyll alpha in the open northern Baltic Sea.

@article{FlemingLehtinen2008LongtermDO,
  title={Long-term development of inorganic nutrients and chlorophyll alpha in the open northern Baltic Sea.},
  author={Vivi Fleming-Lehtinen and Maria J Laamanen and Harri Kuosa and Hannu Haahti and Riitta Olsonen},
  journal={Ambio},
  year={2008},
  volume={37 2},
  pages={86-92}
}
Eutrophication is an ongoing process in most parts of the Baltic Sea. This article reports on the changes during recent decades of several eutrophication-related variables in the open sea areas surrounding Finland (wintertime nutrient concentrations, wintertime nutrient ratios, and summer time chlorophyll alpha concentrations at the surface). The sum of nitrate- and nitrite-nitrogen ([NO3+NO2]-N) was observed to increase nearly fourfold in the Northern Baltic Proper and the Gulf of Finland and… CONTINUE READING