Horvath, 1977



Citation


Horvath, L. (1977) Improvement of the method for propagation, larval and postlarval rearing of the wells (Silurus glanis L.). Aquaculture, pp. 161-167

Associated characteristics


Species Development state Trait Primary Data Secondary Data
Silurus glanis Spawning conditions Mating system The aggressiveness of both sexes increase during the spanwing season and heavy injuries occur even during the normal spawning process. Such injuries may later be the cause of death No category
Silurus glanis Spawning conditions Spawning temperature Reared at 23-24°C 23.5 °C
Silurus glanis Egg Egg adhesiveness After fertilization eggs were tansferred to hatching glasses where they stick to the wall and slightly to each other Adhesive
Silurus glanis Egg Degree-days for incubation Hatching takes place after 60-70 day°C 65.0 °C * day
Silurus glanis Spawning conditions Spawning season Spawning lasted from the beginning of May to the end of the third week in June ['May', 'June']
Silurus glanis Larvae Temperature during larval development 22-26 24.0 °C
Silurus glanis Larvae Onset of exogeneous feeding After their first feeding (5-7 days old) at temperature of 22-26°C 6.0 °C * day
Silurus glanis Larvae Larvae behaviour To start with the yellow and helpless larvae lay at the bottom of the boxes. On the 2nd and 3rd day, as they became greyish, they gathered in the darker corner Demersal