Summerfelt, 1996


Summerfelt, S.T. (1996) Intensive culture of walleye fry., pp. 161-185

Associated characteristics

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