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Turkish Journal of Fisheries and Aquatic Sciences 2019, Vol 19, Num, 7     (Pages: 541-549)

The Effect of Light Intensity and Tank Wall Colour on Survival and Growth of Peled Coregonus peled Gmelin 1788 Larvae

Roman Sebesta 1 ,Vlastimil Stejskal 1 ,Jan Matousek 1 ,Katsiaryna Lundova 1

1 University of South Bohemia in Ceske Budejovice, Faculty of Fisheries and Protection of Waters, South Bohemian Research Center of Aquaculture and Biodiversity of Hydrocenoses, Institute of Aquaculture and Protection of Waters, Na Sádkách 1780, 370 05 České Budějovice, Czech Republic DOI : 10.4194/1303-2712-v19_7_01 Viewed : 600 - Downloaded : 782 A 33-day experiment was carried out to investigate the effect of light at 80, 380, and 3800 lux and tank wall colour (black, grey, white, red, green, blue, clear) separately and in combination on growth, survival, yield, and size heterogeneity of peled Coregonus peled larvae. 7 groups of larvae in 3 repetitions were transferred to the experimental system. Each group comprised 300 larvae. Larvae were fed fresh live brine shrimp Artemia salina and artificial dry food LARVIVA ProWean. Significantly higher (p<0.05) survival was observed in black and white tanks in comparison with grey tanks. Significantly lower (p<0.05) size heterogeneity was observed in red and grey tanks compared to clear, black, green, and blue tanks, and in RD-H compared to WH-H, WH-M, WH-L, CL-H, CL-M, CL-L, BK-H, BK-M, BK-L, GN-H, GN-M, GN-L, BE-H, BE-M, BE-L, GY-H, and RD-M compared to WH-M, WH-L, CL-H, CL-M, CL-L, BK-H, BKM, BK-L, GN-H, GN-M, GN-L, BE-H, BE-M, BE-L, and RD-L, GY-L, GY-M compared to WH-L, CL-H, CL-M, CL-L, BK-H, BK-M, BK-L, GN-H, GN-M, GN-L, BE-H, BE-M, BE-L. Based on our results, peled larvae are independent of light intensity. Rearing of peled in black tanks can be recommended for the highest survival. Keywords : Light range, Whitefish, Growth performance, Mortality, Larviculture