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Turkish Journal of Fisheries and Aquatic Sciences 2019, Vol 19, Num, 10     (Pages: 893-897)

Seasonal variability of length-weight relationships of Arctic grayling (Thymallus arcticus) and Siberian dace (Leuciscus baicalensis) inhabiting the middle reaches of the Yenisei River, Siberia, Russia

Ivan V. Zuev 1 ,Elena A. Trofimova 2 ,Tatiana A. Zotina 1-2

1 Siberian Federal University, Institute of Fundamental Biology and Biotechnology, Svobodny av., 79, 660041 Krasnoyarsk, Russia
2 Federal Research Center “Krasnoyarsk Science Center SB RAS”, Institute of Biophysics SB RAS, Akademgorodok, 50/50, 660036 Krasnoyarsk, Russia
DOI : 10.4194/1303-2712-v19_10_09 Viewed : 2983 - Downloaded : 2345 The present study proves the presence of seasonal variability of LWRs of Arctic grayling and Siberian dace inhabiting the middle reaches of the Yenisei River. LWRs were estimated using total length (cm) and total body weight (g). The literature data on LWRs of dace and grayling from different regions were compared using log a over b plot. The comparison revealed that seasonal variability of LWRs was wider than the geographic variability for these species. The position of points on the plot can be used to predict the season of sample collection and vice versa. Keywords : LWR, Fish condition, Baikal grayling, Total length, Total body weight