BIOTIC Species Information for Polinices spp.
Researched byMorvan Barnes Data supplied byMarLIN
Refereed byThis information is not refereed
Reproduction/Life History
Reproductive typeGonochoristic
Developmental mechanismPlanktotrophic
Reproductive SeasonSee additional information Reproductive LocationAs adult
Reproductive frequencyAnnual protracted Regeneration potential No
Life span3-5 years Age at reproductive maturity1-2 years
Generation time1-2 years FecunditySee additional information
Egg/propagule sizeEgg collar weight variable Fertilization typeInternal
Larval/Juvenile dispersal potentialNot relevant Larval settlement period45 days after hatching
Duration of larval stage1-2 months   
Reproduction Preferences Additional InformationReproductive maturity is related to size-8-10mm. Fecundity is also variable, and strongly correlated to age and size of female. Larval duration is around 45 days, but this is dependant on sediment triggered metamorphosis. Reproduction is throughout the year, with access to males and sufficient food, with peaks in July and August. Developmental mechanism is primarily planktotrophic although some species are thought to have direct development.
Reproduction References Kingsley-Smith et al., 2005, Kingsley-Smith et al., 2003, Ansell, 1982, Graham, 1988, Seaward, 1982, Hayward & Ryland, 1995b,
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