Makeeva, A.P. and Emel'yanova, N.G. (1993) Early development of the channel catfish, Ictularus punctatus. Journal of Ichthyology, pp. 87-103
Species | Development state | Trait | Primary Data | Secondary Data |
Ictalurus punctatus | Egg | Egg size after water-hardening | 3.9 [The diameter of the egg membrane after activation] | 3.9 mm |
Ictalurus punctatus | Egg | Egg adhesiveness | Highly viscous and they stick together | Adhesive |
Ictalurus punctatus | Egg | Incubation time | 4.5 [At 28-29°C], 5 [26-28°C] | 28.5 days |
Ictalurus punctatus | Egg | Degree-days for incubation | 130-140 | 135.0 °C * day |
Ictalurus punctatus | Larvae | Initial larval size | 7-7.5 | 7.25 mm |
Ictalurus punctatus | Larvae | Larvae behaviour | All prelarvae are in contact with one another | Demersal |
Ictalurus punctatus | Larvae | Reaction to light | The prelarvae avoid bright light and are indifferent to diffuse light [The larvae are strongly negatively phototaxic and remain in a group in the darkest places or hide under stones] | Photophobic |
Ictalurus punctatus | Larvae | Temperature during larval development | 27-28 | 27.5 °C |
Ictalurus punctatus | Larvae | Full yolk-sac resorption | 448 | 448.0 °C * day |
Ictalurus punctatus | Larvae | Onset of exogeneous feeding | 700 | 700.0 °C * day |
Ictalurus punctatus | Spawning conditions | Parental care | The males guarding their own egg masses express aggressive behavior | Male parental care |