The North Sea Oceanarium

Nordsoen Oceanarium is a public aquarium and museum that opened in 1998 at the beaches of the North Sea in Hirtshals, north Jutland, Denmark. Their major tank, which holds four,500,000 litres, is the most important in Northern Europe, but the Oceanarium also has numerous smaller habitat aquariums and an show off with seals. Species displayed are local to the oceans around Denmark. The Oceanarium is part of the Nordsocentre, which additionally homes a conference centre. The big elliptical tank within the centre of the museum's vintage building measures 22 by way of 33 metres and holds four,500,000 litres of water.

The centre tank turned into designed to resemble the open sea inside the North Sea, and particularly to keep education, pelagic fish. It is also a "show-room" for displaying massive specimens of some of the species which are additionally visible in the habitat tanks as an instance cod, saithe, turbot and sea-bass. Other massive species in the tank are spiny dogfish, skates, and ocean sunfish. In general, there are about 2–3000 fish in this tank.