Wolnicki, J. and Kaminski, R. and Myszkowski, L. (2002) Temperature-influenced growth and survival of burbot Lota lota (L.) larvae fed live food under controlled conditions. Archives of Polish Fisheries/Archiwum Rybactwa Polskiego/ [Arch.Pol.Fish./Arch.Ryb.Pol.], pp. 109-113
Species | Development state | Trait | Primary Data | Secondary Data |
Lota lota | Larvae | Temperature during larval development | Five constant temperatures of 12, 15, 18, 21 and 24°C (range ± 0.5°C), all in duplicate, were employed in the experiment. The fastest larval growth, either in terms of total length or body weight, was recorded for the temperature of 21°C, whereas at 12°C the larvae grew the slowest. A final survival rate of at least 90% was observed for the burbot reared at 12 and 15°C; this figure was significantly higher than at the other water temperatures. The fish reared at 12°C had the second highest survival rate at 72%. | 12.0 °C |
Lota lota | Larvae | Temperature during larval development | As evidenced by these results, a temperature of 21°C would be closest to the optimum growth temperature (OGT) for larvae of this species. The results presented here also indicate that a temperature of 18°C or lower and particularly 24°C are out of the optimal range for larval burbot because of either relatively slow fish growth or unsatisfactory survival or both | 21.0 °C |
Lota lota | Larvae | Sibling intracohort cannibalism | No cannibalism occurred at any temperature throughout the experiment, although in this species it may appear at about 12 mm TL | Absent |
Lota lota | Larvae | Onset of exogeneous feeding | Burbot larvae, which were the pooled offpsring of many wild spawners, were reared from the first feeding (day 10 post-hatch) over a period of 20 days. Larvae of an initial size of 3.61 ± 0.27 mm (average TL ± SD; n = 15). | 3.61 °C * day |