The history of the management of Baltic fishery resources suggests tha
t both biological and non-biological factors influence management deci
sions and that both types of information are essential for management
which promotes sustainability. There is a direct link between the expl
oitation level and the risks for fishing as an economic activity due t
o fluctuations in the resource. This paper analyses the sustainability
of the present catch levels of major Baltic fish stocks. By examining
the rate of fishing mortality and recruitment variability, the possib
ility of sustaining present catch levels can be investigated. Current
catch levels of Baltic cod and some salmon stocks are not sustainable
whereas sprat and herring catches are. High rates of fishing mortality
of cod and salmon may endanger stocks if a drop in the recruitment ca
uses an increase of the fishing mortality rates in order to sustain sh
ort-term catches. By analysing the trade off between exploitation leve
l and risk of stock decline, managers can obtain a basis for quota neg
otiations.