The amur pike (Esox reicherti Dybowski) in Fishes of the Amur Basin (results of the Ichthylogical Expedition to the Amur Region, 1945-1949 by G. V. Nikolsky, 1956) (Fisheries research report: 1787)

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Tyr were distributed as follows: 5.0-5. 5 cm, 2; 5. 5-6.0 cm, 6;
6. 0-6. 5 cm, 5; 6. 5-7. 0 cm, 2; 7. 0-7. 5 cm, 1; mean, 6. 1 cm.
In Amuga, on July 15, fish of 10. 3 and 10. 5 cm were obtained.
In Saharovka, one young fish caught on July 22 had a length of 8. 1 cm.
In 1948 young pike of the following sizes were obtained: In upper Amur:
Shilka in Staroloncakovo on July 6, 9. 8 and 10. 1 cm; Lake Ural on
July 9, 3. 9 cm; Amur close to Sverbevo on July 23, 10.0 cm;
Dzalinda, 10. 3 cm; Elabuga, Lake Nikitina on July 30, 15. 5 cm;
Bolon on June 19, 5. 5 and 7. 7 cm; on June 21, 4.4 cm; on June 23,
7.0 cm; on July 3, 8.7, 12.5 and 13.7 cm; on July 5, 10.9 cm, on
July 10, 6. 9, 8. 1 and 14.7 cm; on July 13, 11.2 and 13.7 cm;
July 14, 8.6, 9.7, 10.0, 10.5, 11.1 and 13.0 cm; July 15, 13.0, 13.4
and 14.0 cm; July 16, 11.3 cm, July 17, 11.8 cm, July 21, 11.3,
July 24, 11.5, 12.8 and 14.9 cm; July 28, 11.2, 12.3, 12.4, 12.5,
13. 7 cm. In this way, at the end of July, young pike in the Bolon region
often reach more than 14 cm.
Growth of pike was determined by means of back calculation on
linear scale (calculation has been done by A. K. Sviderskaya) and can be
seen in Table 5. Comparison of fish growth from different regions shows
that existing difference is extremely insignificant and fits into the error
limit. Males are characterized by somewhat slower growth than females.
Comparison of data on pike growth with the data obtained for middle flow
by A. Ya. Taranc, shows a very similar picture.