Conversion coefficients for fish catch statistics are the results of 28 years of Norwegian–Russian cooperation in the field of fisheries

The establishment of uniform conversion coefficients for the production of products from aquatic biological resources is one of the important measures to regulate the fishing of a joint stock of aquatic biological resources within the framework of the Joint Russian-Norwegian Fisheries Commission (RNFC), since the reliability of the calculation of the actual catch of aquatic biological resources depends on their objectivity. In order to develop common Russian-Norwegian conversion coefficients for products from the joint reserves of the Barents and Norwegian Seas, a Working Group (WG) on Conversion Coefficients was established in 1993 as part of the Permanent Russian-Norwegian Committee on Fisheries Management and Control (PRNK). This paper summarizes the results of joint Russian-Norwegian research on measurements and calculations of uniform conversion coefficients in the production of various types of products from jointly managed reserves of aquatic biological resources of the Barents and Norwegian Seas in the period from 1993 to 2021.As a result of the conducted research, it has been developed «Joint Russian-Norwegian technical description of products from jointly managed reserves of the Barents and Norwegian Seas». 

1. Shapovalova L.A., Piskunovich D.I. (2021). Development of uniform conversion coefficients for products from the Siberian Federal District within the framework of bilateral cooperation between Russia and Norway // Fisheries. No. 4. Pp. 4-9. https://doi.org/10.37663/0131-6184-2021-4-4-9. (In Rus., abstract in Eng.)

2. The structure of the Joint Russian-Norwegian Fisheries Commission [Electronic resource]. – Access mode: https://www.jointfish.com/rus/O-KOMISSII/STRUKTURA.html, free – (Accessed 27.10.2024). (In Russ.)

3. Penkin M.A., Stepanenko V.V., Blom G. [et al.]. (2013). Joint Russian-Norwegian methodology for measuring and calculating conversion coefficients for fish products manufactured on fishing vessels – Tromso: Publishing House of the Norwegian Directorate of Fisheries. 23 p. (In Russ.)

4. Penkin M.A., Yarichevskaya N.N. (2016). Analysis of conversion coefficients for some types of products from the northeastern Arctic cod and haddock // Proceedings of VNIRO. Vol. 159. Pp. 5-12. (In Russ.)

5. Piskunovich D.I., Shapovalova L.A., Mukhin V.A. (2024). Analysis of conversion coefficients for various types of cod fillets established by the joint Russian-Norwegian Fisheries Commission // Ways to increase the efficiency of animal husbandry, fish farming and crop production in the European North of Russia: Collection of materials of a scientific and practical conference with international participation dedicated to the 70th anniversary of the Department of Animal Science of Petrozavodsk State University, Petrozavodsk, December 13, 2023. – Petrozavodsk: Petrozavodsk State University. Pp. 67-74. (In Russ.)

6. Piskunovich D. I., Shapovalova L.A., Lyzhov I.I. (2020). On the issue of establishing uniform conversion coefficients for certain types of fish food products from blue-horned halibut // Modern problems and prospects for the development of the fisheries complex: Proceedings of the VIII scientific and practical conference of young scientists with international participation, Moscow, November 05-06, 2020. – Moscow: All-Russian Scientific Research Institute of Fisheries and Oceanography. Pp. 109-11. (In Russ.)

7. Piskunovich D.I., Shapovalova L.A. (2022). Establishment of uniform conversion coefficients for certain types of products from grouper in the framework of the Joint Russian-Norwegian Fisheries Commission // 66th International Scientific Conference of Astrakhan State Technical University: Conference Proceedings, Astrakhan, April 2529, 2022. Astrakhan: Astrakhan State Technical University. Pp. 541-545. (In Russ.)

8. Piskunovich D.I. (2021). On the issue of establishing uniform conversion coefficients for certain types of perch products // Modern problems and prospects for the development of the fisheries complex: Proceedings of the IX Scientific and Practical Conference of Young Scientists with international participation, dedicated to the 140th anniversary of VNIRO, Moscow, November 11-12, 2021. – Moscow: All-Russian Scientific Research Institute of Fisheries and Oceanography. pp. 142-144. (In Russ.)

9. Joint Russian-Norwegian technical description of products from jointly managed reserves of the Barents and Norwegian Seas [Electronic resource]. – Access mode: https://www.fiskeridir.no/English/Fisheries/Norwegian-conversion-factors/_/attachment/download/d277c8a2-3cc8-4c28-a204-cd2e894327:58a166745823da1cffcf1e06993f8ee20aab652b/Felles-norsk-russiske-tekniske-beskrivelser-av-produkter-torsk-hyse.pdf , free – (Accessed 27.10.2024). (In Russ.)

10. Yarichevskaya N.N., Kharenko E.N., Sytova, M.V., Piskunovich D.I. Conversion factors for accounting for the actual catch of aquatic bioresources // Epoch of Science. - 2024. - No. 40. - P. 50-55. https://www.elibrary.ru/item.asp?id=76058058