Navaga
Encyclopedia
Navaga is a relatively small species of fish in the cod family Gadidae
. It inhabits the Europe
an arctic
and subarctic
waters of the Barents
, White
and Kara Sea
s, from the Kola Bay
to the Ob river
estuary.
Navaga fish usually occur at shallow depths, along shores with soft bottoms, close to the ice and on the continental shelf. In winter they live in nearshore waters, where spawning takes place. They are often found in estuaries and can enter fresh water in rivers. In summertime they return to open waters. They feed on crustaceans and benthic animals, also on small fish. Adult size is usually 25-35 cm, but White Sea fish are smaller, 15-25 cm.
Navaga is commercially fished mainly in the wintertime in the bays of the White Sea.
The European navaga is a close relative of the Saffron cod
(Eleginus gracilis), a Pacific sister species.
Gadidae
Gadidae is a family of marine fish, included in the order Gadiformes. It includes the cod, haddock, whiting, and pollock.Most species of gadid are found in temperate waters of the northern hemisphere, although there are some exceptions. They are generally medium sized fish, and are distinguished...
. It inhabits the Europe
Europe
Europe is, by convention, one of the world's seven continents. Comprising the westernmost peninsula of Eurasia, Europe is generally 'divided' from Asia to its east by the watershed divides of the Ural and Caucasus Mountains, the Ural River, the Caspian and Black Seas, and the waterways connecting...
an arctic
Arctic
The Arctic is a region located at the northern-most part of the Earth. The Arctic consists of the Arctic Ocean and parts of Canada, Russia, Greenland, the United States, Norway, Sweden, Finland, and Iceland. The Arctic region consists of a vast, ice-covered ocean, surrounded by treeless permafrost...
and subarctic
Subarctic
The Subarctic is a region in the Northern Hemisphere immediately south of the true Arctic and covering much of Alaska, Canada, the north of Scandinavia, Siberia, and northern Mongolia...
waters of the Barents
Barents Sea
The Barents Sea is a marginal sea of the Arctic Ocean, located north of Norway and Russia. Known in the Middle Ages as the Murman Sea, the sea takes its current name from the Dutch navigator Willem Barents...
, White
White Sea
The White Sea is a southern inlet of the Barents Sea located on the northwest coast of Russia. It is surrounded by Karelia to the west, the Kola Peninsula to the north, and the Kanin Peninsula to the northeast. The whole of the White Sea is under Russian sovereignty and considered to be part of...
and Kara Sea
Kara Sea
The Kara Sea is part of the Arctic Ocean north of Siberia. It is separated from the Barents Sea to the west by the Kara Strait and Novaya Zemlya, and the Laptev Sea to the east by the Severnaya Zemlya....
s, from the Kola Bay
Kola Bay
Kola Bay or Murmansk Fjord is a 57-km-long fjord of the Barents Sea that cuts into the northern part of the Kola Peninsula. It is up to 7 km wide and has a depth of 200 to 300 metres. The Tuloma and Kola Rivers discharge into the bay....
to the Ob river
Ob River
The Ob River , also Obi, is a major river in western Siberia, Russia and is the world's seventh longest river. It is the westernmost of the three great Siberian rivers that flow into the Arctic Ocean .The Gulf of Ob is the world's longest estuary.-Names:The Ob is known to the Khanty people as the...
estuary.
Navaga fish usually occur at shallow depths, along shores with soft bottoms, close to the ice and on the continental shelf. In winter they live in nearshore waters, where spawning takes place. They are often found in estuaries and can enter fresh water in rivers. In summertime they return to open waters. They feed on crustaceans and benthic animals, also on small fish. Adult size is usually 25-35 cm, but White Sea fish are smaller, 15-25 cm.
Navaga is commercially fished mainly in the wintertime in the bays of the White Sea.
The European navaga is a close relative of the Saffron cod
Saffron cod
The saffron cod , is a commercially harvested fish closely related to true cods . It is dark grey-green to brown, with spots on its sides and pale towards the belly. It may grow to 60 cm and weigh up to 1.3 kg....
(Eleginus gracilis), a Pacific sister species.
External links
- NOAA Photo Library: Eleginus navaga (picture)