BALTSEM – Baltic Sea Long-Term Large Scale Eutrophication Model

BALTSEM, the BAltic sea Long-Term large Scale Eutrophication Model is a time-dependent ecosystem model developed by BNI Sweden and available through the Nest Decision Support System.


BALTSEM-C – includes carbon

BALTSEM-C is an expansion of BALTSEM, which in addition to nutrient cycling includes the inorganic carbon system and several classes of organic carbon.


BALTSEM-POP – simulates environmental toxins

Pollution by organic contaminants and other hazardous chemical substances is one of the major stressors in the Baltic Sea. Baltsem-POP can predict future distribution of organic chemicals.

More information about BNI

Baltic Nest Institute Sweden
Stockholms University Baltic Sea Centre

Contact at BNI Sweden:
Bo Gustafsson,
+46 8 674 7593

Baltic Nest Institute Denmark
Aarhus University

Contact at BNI Denmark:
Jacob Carstensen,
+45 871 58 596

Berit Hasler,
+45 871 58 637

Baltic Nest Institute Finland
Finnish Environment Institute

Contact at BNI Finland:
Vivi Fleming-Lehtinen,
+358 295 251 879

The Nest System

Nest Sanbalt