East Siberian Sea runoff into the East Siberian Sea is relatively small at about 250 km/year that makes only 10% of the total runoff in all the Arctic seas of Russia. The largest contribution is from the Kolyma River at 132 km, followed by the Indigirka River at 59 km. Most runoff (90%) occurs in summer; it is concentrated near the coast, owing to the weak river currents, and therefore does not significantly affect the sea hydrology. The water exchange between the neighboring seas is as follows. The annual outflow to the Laptev Sea, Chukchi Sea and Arctic Ocean is 3,240, 6,600 and
East Siberian cod coasts of Greenland. The fish prefers living close to the sea floor at depths of 15 to 40 m, but it sometimes enters estuaries. They may also be found under pack ice. They are of little economic value. Newer research, based on both morphological and mitochondrial DNA data, has however concluded that the East Siberian cod is not a distinct species from the Arctic cod, but the genus "Arctogadus" comprises just a single species i.e. the Arctic cod "Arctogadus glacialis". East Siberian cod The East Siberian cod ("Arctogadus borisovi") also known as the toothed cod, is an Arctic fish closely