BIOTIC Species Information for Atrina fragilis
Researched byDr Harvey Tyler-Walters Data supplied byMarLIN
Refereed byDr Dan Minchin
Reproduction/Life History
Reproductive typeGonochoristic
Developmental mechanismPlanktotrophic
Reproductive SeasonInsufficient information Reproductive LocationInsufficient information
Reproductive frequencyInsufficient information Regeneration potential No
Life span11-20 years Age at reproductive maturityInsufficient information
Generation timeInsufficient information FecundityInsufficient information
Egg/propagule sizeInsufficient information Fertilization typeInsufficient information
Larval/Juvenile dispersal potential10-100m Larval settlement periodInsufficient information
Duration of larval stageInsufficient information   
Reproduction Preferences Additional InformationAtrina fragilis is assumed to be long lived due to its large size and longevity is expected to be in excess of 10 years (D. Minchin, pers. comm.). Butler et al. (1993) report that the related Mediterranean genus Pinna nobilis may live up to 18 yr. Dispersion is assumed to be possible over large distances due to the pelagic life history. However, Butler et al. (1993) mention evidence for genetic population sub-division in Pinna bicolor within the Gulf of St Vincent in South Australia, which suggests that effective dispersal is lower than expected.
Reproduction References Butler et al., 1993, Butler, 1987, Booth, 1979.,
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