Summerfelt, S.T. (1996) Intensive culture of walleye fry., pp. 161-185
Species | Development state | Trait | Primary Data | Secondary Data |
Sander vitreus | Larvae | Initial larval size | Descirbed as 4.8; 6-9; 6-8.6; 7.1; 5.7-7.8 | 7.5 mm |
Sander vitreus | Larvae | Larvae behaviour | The prolarvae are weak swimmers, so water currents in culture banks should be low, because larvae are quickly exhausted | Demersal |
Sander vitreus | Larvae | Temperature during larval development | Feed acceptance and survival is greater at 18.4°C than at 12.8°C, and an ideal temperature range is 15.6-18.4, with 18.4°C as optimum/ | 17.0 °C |
Sander vitreus | Larvae | Sibling intracohort cannibalism | Most mortality from cohort cannibaslim occurs from trunk attacks, not the result of successful consumption f the prey, which is from the tail first. Cannibalism begin as the fry begin feeding | Present |
Sander vitreus | Larvae | Full yolk-sac resorption | At a mean temperature of 16.4°C, the yolk sac dissapears in the 5th day posthatch, about 68 TU, but it may persist up to 13 days at temperature of 13.2°C. Also reported that the yolk sac dissapeared in 10-11 days | 10.5 °C * day |
Sander vitreus | Larvae | Onset of exogeneous feeding | Initiation of feeding 100-120 | 110.0 °C * day |