BIOTIC Species Information for Gammaropsis spp.
Researched bySean Lindsley-Leake Data supplied byMarLIN
Refereed byThis information is not refereed
Reproduction/Life History
Reproductive typeGonochoristic
Developmental mechanismViviparous (Parental Care)
Reproductive SeasonMarch to October Reproductive LocationAs adult
Reproductive frequencyAnnual episodic Regeneration potential No
Life span1 year Age at reproductive maturitySee additional information
Generation time<1 year Fecundity4 - 36 eggs over 2 broods
Egg/propagule size0.23mm Fertilization typeInternal
Larval/Juvenile dispersal potential<10m Larval settlement periodTwo periods of recruitment
Duration of larval stage11-30 days   
Reproduction Preferences Additional InformationSexual maturity is reached after 8 moults (around 4mm). Fecundity is dependant on female size and season.Semi annual life cycle means that two generations are possible, differing embryo sizes are produced at different times of the year. Large embryos, and fewer of them, are produced over winter; with small embryos, and more of them, produced over the summer. The number of embryos found in june ~20, found feb-june/july-oct~10 .
Reproduction References Powell & Moore, 1991, Powell, 1992, Steele et al., 1986, Jeong et al., 2009, Steele et al., 1986, Powell, 1992,
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