Mansueti, 1964



Citation


No detailed citation.

Associated characteristics


Species Development state Trait Primary Data Secondary Data
Perca flavescens Spawning conditions Spawning water type Upper reaches of many major tributaries No category
Perca flavescens Spawning conditions Spawning depth Shallow : 60-90 cm deep 75.0 m
Perca flavescens Egg Egg adhesiveness Lose its adhesive properties within 3 minutes in water Adhesive
Perca flavescens Egg Incubation time 27 days [8.5-12°C] 10.25 days
Perca flavescens Egg Degree-days for incubation 229-300 [About 27 days at 8.5-12°C] 264.5 °C * day
Perca flavescens Egg Egg size after water-hardening Mean diameter of 2.26 mm, 1.87 to 2.81 but some describes it to reach 4.5 mm [Water hardening within the first few minutes] 2.26 mm
Perca flavescens Egg Egg Buoyancy Semi-demersal [Strands are slightly heavier than water and float in the current until they become untangled in debris] Pelagic
Perca flavescens Egg Oocyte diameter 1.62-2.09, mean 1.76 [Fertilized eggs before water-hardening] 1.855 mm
Perca flavescens Spawning conditions Spawning season March-April ['April', 'March']
Perca flavescens Larvae Temperature during larval development In general, water temperatures varied between 10 and 22°C and it is suspected that this range prevails in the shallow waters of the natural spawning grounds. In other studies, specimens were raised under hatchery conditions around 20°C 10.0 °C
Perca flavescens Larvae Initial larval size 5.5-6.0 5.75 mm
Perca flavescens Larvae Larvae behaviour Immediatly active swimmer Demersal
Perca flavescens Spawning conditions Spawning release Eggs of the yellow perch are extruded in adhesive strands, eggs are extruted in long adhesive and 'accordion folded' strands about 5 cm thick No category