Mills, 1981



Citation


Mills, C.A. (1981) The attachment of dace, Leuciscus leuciscus L., eggs to spawning substratum and the influence of changes in water current on their survival. J. Fish. Biol., pp. 129-134

Associated characteristics


Species Development state Trait Primary Data Secondary Data
Leuciscus leuciscus Spawning conditions Spawning substrate Gravel spawning sites Lithophils
Leuciscus leuciscus Spawning conditions Spawning water type Fast-flowing waters Flowing or turbulent water
Leuciscus leuciscus Egg Egg adhesiveness Adhesive Adhesive
Leuciscus leuciscus Egg Incubation time Take 25-30 days to hatch in a typical river temperatures 27.5 days
Leuciscus leuciscus Egg Degree-days for incubation 250-300 [25-30 days at 10°C] 275.0 °C * day
Leuciscus leuciscus Egg Temperature for incubation Typical spring water temperature is 10°C 10.0 °C
Leuciscus leuciscus Egg Egg size after water-hardening Eggs found on the field range from 1.33 to 1.51 mm 1.33 mm
Leuciscus leuciscus Egg Egg Buoyancy Negatively bouyant No category
Leuciscus leuciscus Spawning conditions Spawning season A small number of eggs were found on 21 March 80, but the following week a large shoal of ripe dace collected in a pool above the spawning site and spawned on 28 March 80 ['March']
Leuciscus leuciscus Larvae Larvae behaviour The water current may play an important role at the time of hatching as newly-hatched fry are feeble swimmers and will be swept dowstream off the site until either chance or perhaps a response to some environmental gradient such as temperature, depth or current itself enables them to aggregate in slack marginal areas Demersal