The fisheries are important - for herring, mackerel, sprats, cod, salmon, lobsters and anchovies.
There are an extensive mackerel and herring fishery, and motor engineering works.
" mackerel fishery"), 21 m.
The fry of clupeoids, which likewise swim in schools, are followed by the mackerel until they reach some shallow place, which their enemies dare not enter.
All fishes of the mackerel family are strictly carnivorous; they unceasingly pursue their prey, which consists principally of other fish and pelagic crustaceans.