The Baltic Sea's main herring stocks have fallen below target levels, which is an alarming sign of changes in the sea's ecosystem, according to WWF Finland.
Fishermen fishing close to the shore in the Baltic Sea have seen a steady decline in herring and Baltic herring catches over many years. Large-scale trawling further out at sea could be one of the reasons behind it.
The Baltic Sea is experiencing a reduction in ice due to climate change, with this winter seeing significantly less ice compared to previous years.
Observations From Members 