Pacoli et al, 1990


Pacoli, C.Q. and Grizzle, J.M. and Bradley, J.T. (1990) Seasonnal levels of serum vittelogenin and ooctye growth in the channel catfish Ictalurus punctatus. Aquaculture, pp. 353-367

Associated characteristics

Species Development state Trait Primary Data Secondary Data
Ictalurus punctatus Egg Oocyte diameter Mean of 2.356 ± 0.049 [Oocyte diameter in May] 2.36 mm
Ictalurus punctatus Female Onset of oogenesis Sharp increase in oocyte size in October ['October']
Ictalurus punctatus Female Intensifying oogenesis activity Second sharp increase of oocyte size from mid-February to May ['February', 'March', 'April', 'May']
Ictalurus punctatus Spawning conditions Spawning period duration All of the adults that were alive in May spawned naturally during the period from the last week of May to the first week of June No data
Ictalurus punctatus Spawning conditions Mating system Each female was paired with an adult male in a spawning pen No category
Ictalurus punctatus Spawning conditions Parity Only one cycle of oogenesis normally occurs each year No category