BIOTIC Species Information for Didemnum spp.
Researched bySean Lindsley-Leake Data supplied byMarLIN
Refereed byThis information is not refereed
Reproduction/Life History
Reproductive typePermanent hermaphrodite
Developmental mechanismLecithotrophic
Reproductive SeasonJuly to Sept Reproductive LocationWater column
Reproductive frequencyAnnual protracted Regeneration potential Yes
Life spanInsufficient information Age at reproductive maturity<1 year
Generation time<1 year Fecundityenvironmental variance
Egg/propagule size0.2mm Fertilization typeExternal
Larval/Juvenile dispersal potential100-1000m Larval settlement period<1day
Duration of larval stage<1 day   
Reproduction Preferences Additional InformationThe fecundity of these ascidians appears to be susceptible to water temperature, precipitation and other factors that vary yearly. Fecundity may also vary due to environmental differences among microhabitats.
Reproduction References Bullard et al, 2007, nurc website, Valentine et al., 2007, Dias & Sergio de Almeida, 2004, Hurlbut, 1991a,
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