Pinder and Gozlan, 2004


Pinder, A.C. and Gozlan, R.E. (2004) Early ontogeny of sunbleak. Journal of fish biology, pp. 762-775

Associated characteristics

Species Development state Trait Primary Data Secondary Data
Leucaspius delineatus Spawning conditions Spawning water type Sunbleak typically lay their eggs on marginal macrophytes that generally grouw out of anoxic silt No category
Leucaspius delineatus Egg Egg adhesiveness Adhere to other eggs in the strip, highly adhesive chorion Adhesive
Leucaspius delineatus Egg Incubation time 3-3.5 [At 24.7°C], also described as 6-7 days [At 21-22°C], and 4 [At 25-26°C] 3.25 days
Leucaspius delineatus Egg Degree-days for incubation 75.5-80.7 78.1 °C * day
Leucaspius delineatus Egg Temperature for incubation From activation to hatching, water temperature ranged between 22.8 and 26.5°C 22.8 °C
Leucaspius delineatus Egg Egg size after water-hardening 1.3-1.4 [After swelling] 1.35 mm
Barbus barbus Larvae Temperature during larval development 19-20 19.5 °C
Leucaspius delineatus Larvae Temperature during larval development After hatching free-embryos and larvae in the aquarium were subsjected to temperatures ranging between 15.1 and 27.5°C, with mean daily temperatures ranging between 16.9 and 26°C (mean 21.6°C). 15.1 °C
Leucaspius delineatus Larvae Full yolk-sac resorption 90-100 DD: By day 8, only a small portion of yolk reserves remained to be absorbed (less than 75.5-80.7 hours for incubation) at 21.6°C 95.0 °C * day
Barbus barbus Larvae Onset of exogeneous feeding About 130-140 [7 days at 19.2-20] 135.0 °C * day
Chondrostoma toxostoma Larvae Onset of exogeneous feeding 70-80 [4 days at 16-18°C] 75.0 °C * day
Leucaspius delineatus Larvae Onset of exogeneous feeding Onset of exogeneous feeding for the first embryo 88 hours at 21.6°C] .i.e. 3-16 hours after hatching 9.5 °C * day
Leucaspius delineatus Larvae Initial larval size Mean 5.11, range 4.83-5.27 5.05 mm
Leucaspius delineatus Larvae Larvae behaviour The earliest embryos to hatch were onyl able to perform sudden bursts of activity and appeared to be able to swim a few centimetres from the bottom before sinking again. Those embryos that hatched lated, however, were able to perform more sustained swimming that were soon able to swim to the surface Demersal