Siberian scientists solve Taimyr char’s secret
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Siberian scientists solve Taimyr char’s secret

October 06, 2022

Researchers selected fish biomaterial in the Sobachje lake and compare it with individuals growing in captivity.

#ARCTIC. #SIBERIA. THIS IS TAIMYR. Scientists study the content of valuable substances in the meat of a wild char growing in captivity. The project to introduce Taimyr char into aquaculture is implemented with the support of the Arctic Development Project Office.

The Putorana char is recognized as the most useful fish in the world, since it contains a record amount of polyunsaturated fatty acids omega-3 – cardiovascular protectors. Researchers hope to understand how to achieve the maximum content of nutrients in the char that will grow in conditions of aquaculture.

Recall that scientists of the Russian Academy of Sciences Siberian Branch’s Biophysics Institute and the Siberian Federal University have been working at the Sobachje lake for the third year. At the end of September 2022, the next stage in the work of The Sobachje Lake Salvelinus Family Fish Artificial Reproduction Monitoring program was successfully completed.

For three weeks, the expedition participants caught the char brood fish to obtain caviar and conduct artificial fertilization.

“14,000 eggs were safely delivered to the Federal Fishing Genetic Center to the village of Ropsha in the Leningrad region and at the Maltat fish farm enterprise in the village of Primorsk, Krasnoyarsk region. The caviar reserves replenishment will diversify genetics and begin an experiment to grow fish of the Salvelinus genus in conditions of commodity aquaculture” the Arctic Development Project Office explained.

This year, the char breeding biotechnics began to be worked out at the Glavrybvoda plant in Beloyarsk, near Abakan. Scientists will conduct research at various stages of the char development in order to understand the causes of the polyunsaturated fatty acids omega-3 record content in them and develop optimal methods for growing fish in aquaculture.

To study the char biology, a complete biological analysis was carried out, evaluating the size, weight, age and stage of maturity. Muscle tissue tests for biochemical assessment were also taken for the nitrogen and carbon stable isotopes analysis, allowing to determine the trophic position and spectrum of char nutrition.

After processing samples, it will be possible to evaluate the content of valuable substances in the native forms of the char to compare them with individuals growing in captivity. This will bring scientists closer to understanding the uniqueness of the char from Sobachje lake.

Recall that scientists want to serve the useful Taimyr char on the table of every Russian family.

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Text: Angelica Stepanova, Photo: Arctic Development Project Office’s press center time / Dialogues about Fishing

October 06, 2022

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