BIOTIC Species Information for Victorella pavida
|Researched by||Michelle Carter & Angus Jackson||Data supplied by||MarLIN|
|Refereed by||This information is not refereed.|
|Reproductive type||Protandrous hermaphrodite
|Reproductive Season||June to September||Reproductive Location|
|Reproductive frequency||Regeneration potential||No|
|Life span||See additional information||Age at reproductive maturity||<1 year|
|Generation time||<1 year||Fecundity||Ca 25 eggs per gravid zooid|
|Egg/propagule size||Fertilization type|
|Reproduction Preferences Additional Information||
The life span of an individual zooid has not been researched in this species. Generally, the polypides (combined lophophore and gut) of individual zooids within a bryozoan colony have the potential to undergo a cyclical degeneration and regeneration process. Polypides may last for one week up to 10 weeks (Reed, 1991). With respect to the life span of a Victorella pavida colony, new colonies emerge from dormancy during the spring and when temperatures are approximately 13°C. By November and the onset of winter, zooids begin to degenerate and eventually only the asexually produced dormant resting bodies (hibernacula) remain. The hibernacula germinate again in the spring and the cycle begins again (Carter, 2004).
Approximately 25 eggs can be produced per gravid zooid (Carter, 2004). Overall colony fecundity, therefore, varies with size of the colony.
|Reproduction References||Reed, 1991, Carter, 2004,|