THE INFLUENCE OF WATER TEMPERATURE ON THE GROWTH, SURVIVAL, CONDITION AND BIOLOGICAL QUALITY OF JUVENILE BURBOT, LOTA LOTA (L.)
Jacek Wolnicki, Leszek Myszkowski, Rafał Kamiński
The Stanisław Sakowicz Inland Fisheries Institute in Olsztyn
ABSTRACT. Growth, survival, condition (Fulton’s coefficient) and biological quality (salinity stress test) were compared in 2-month-old burbot (20 mg BW, 10.9 mm TL) reared at 12, 15, 18, and 21°C. At 15°C, the fish showed the best growth in BW and TL (170 mg and 24.5 mm, respectively), and the highest final survival rate (97%), whereas their condition coefficient and tolerance to salinity proved to be the second best. This may indicate that a temperature of 15°C should be used for the practical purposes of juvenile burbot mass production under controlled conditions.
Key words: LOTA LOTA, JUVENILES, TEMPERATURE, GROWTH, SURVIVAL, BIOLOGICAL QUALITY