Penaz, 1983



Citation


Penaz, M. (1983) Ecomorphological laws and saltation in early ontogeny of Salmonoidei. Folia Zool., pp. 365-373

Associated characteristics


Species Development state Trait Primary Data Secondary Data
Cyprinus carpio Egg Incubation time Hatching of embryos began at 51 hours and finished at an age of 57.5 hours. The peak was observed at 54 hours at 25°C 51.0 days
Cyprinus carpio Egg Temperature for incubation The best hatching rsults were obtained at water temperatures in the range 15-22.5°C. At higher temperatures (from 25°C)the number of defective individuals hatched increases. At a temperature of 10°C all embryos died 18.75 °C
Cyprinus carpio Egg Egg size after water-hardening Within 30-40 minutes this process ended and the average diameter of eggs remained at a value of 1.65 mm. [Described in other studies as: 1.5-1.8] 1.65 mm
Cyprinus carpio Egg Oocyte diameter The average diameter of unfertilized and unactivated eggs was 1.25 mm 1.25 mm
Cyprinus carpio Larvae Temperature during larval development In the larval period of development an increase in water temperature within the range of optimal temperatures (18-26°C) leads to to alagging behind a growth rate comperaed to development rate 22.0 °C
Cyprinus carpio Larvae Full yolk-sac resorption 70-80: At 25°C, the yolk has dissapeared completely between the 133th and 131st hour of development, less than 51-57.5 hours for hatching 75.0 °C * day
Cyprinus carpio Larvae Onset of exogeneous feeding 91 to 122 hour od development at 25°Cwe found that at a temperature of 25°C, the onset of the larval period, i.e. the intake of the first food, to take place at 91 hhours (4 day) following impregantion, wich corresponds to 37 hours (2 days after hatching) 91.0 °C * day
Cyprinus carpio Larvae Initial larval size The mean total length of embryos on hatching was 4.71 mm 4.71 mm
Cyprinus carpio Larvae Larvae behaviour Immedialty after hatching the embryos remain passively on the bottom of the tank, with occasional jerly movements, and someindividuals begin to attach themselves by means of their special adhesive glands Demersal