Number of cod in the coming years will be increased in the northern Barents Sea and off the coast of Russia, which is caused by migration of this species due to climate warming in the Arctic, told RIA Novosti on Monday, Scientific Director of the Institute of Marine Research Tromsø Harald Loeng.
Norwegian scientists predict an increase in population of cod north of Spitsbergen, in the Kara Sea and the coast of Siberia and explain it, first of all, increase in temperature in the sea.
"The population of cod increases. Last year it was a record number in the Barents Sea. We note that the cod habitat extends north by raising the temperature in the sea — cod moves for food supply," — said Loeng.
According to experts of the University of Tromsø, for 30 years, the region has lost about 30-40% of the ice cover. The result is a drift of thin ice, followed by changing their place of habitat and fish. According to some experts, the fish habitat change may require new arrangements Arctic states in the field of fisheries.
So far, Russia and Norway agreed in 2013 a record quotas for the Barents Sea cod — over 1 million tons. However, scientists and fishermen Norway should excite cod migration toward the Russian coast.
According to the Minister of Foreign Affairs of Norway Espen Barth Eide, the best way to resolve the contentious issues is discussed at the level of specialized research institutes, as well as the implementation of the international agreements on the joint use of fishery resources, as does the mixed Russian-Norwegian Fisheries Commission for 40 years.
"We work with all the countries with which we have shared resources. There are international treaties. Most importantly — we must work together to manage resources. Sometimes there are disputes over quotas. We always reach agreement," — said Eide.
According to the director of the Murmansk Marine Biological Institute, Academician Gennady Matishova, cod migration toward the Russian coast due to cyclical changes in the warm and cold periods in the Arctic. This cycle can last for 15-20 years and then change.
"We have been seeing it. Past 100 years, the Kola Bay froze four times, it means that there is a change of the cycle. Now comes the period of warming, and the cod move to the Russian side. But it can not affect the catch — each country has its own quota regardless of where the fish are at the moment, "- said Matishov RIA Novosti.
"Indeed, over time, the temperature in the sea may again go down, but we do not know exactly when it will happen. In this case, it is difficult to make predictions," — said the Norwegian scientist Loeng.
The Arctic accounts for one fifth of the oil produced in the world of fish. One third of the region received the fish consumed in the EU.