The Norwegian Spring-Spawning Herring is the world’s largest herring biomass. Each year in February, the herring spawn and lay their herring roe or caviar in massive quantities, covering the entire seabed off the Møre coast with the next generation of Norwegian Herring. The total weight of the roe covering the seabed is three times as much as the weight of the entire Norwegian population¹. Only a small fraction of the herring eggs become mature fish. Many different species come to feed off the eggs and larvae, and seabirds feed on the fry and grown fish. The sea current flows as a gigantic river moving north along the coastline, carrying the herring larvae into the Barents Sea. In the Barents Sea, the herring larvae grow into small herring fish. When the herring reaches maturity at 3 to 4 years of age, it swims west again along the Norwegian coast to prepare for its first spawning cycle.