BIOTIC Species Information for Pentapora fascialis
Researched byAngus Jackson Data supplied byMarLIN
Refereed byDr Peter J. Hayward
Reproduction/Life History
Reproductive typeInsufficient information
Developmental mechanismLecithotrophic
Reproductive SeasonFebruary to October Reproductive LocationInsufficient information
Reproductive frequencyAnnual protracted Regeneration potential No
Life span6-10 years Age at reproductive maturitySee additional information
Generation timeInsufficient information FecundityInsufficient information
Egg/propagule sizeInsufficient information Fertilization typeInsufficient information
Larval/Juvenile dispersal potentialInsufficient information Larval settlement periodInsufficient information
Duration of larval stage<1 day   
Reproduction Preferences Additional Information
  • Pentapora fascialis is perennial, (Eggleston, 1972a) and probably lives for several years. Stable oxygen isotope values have shown colonies to be at least 3 years old (Patzold et al., 1987) and other estimates of growth rate suggest that Pentapora fascialis colonies in the Mediterranean are 10 years old or more (Cocito et al., 1998(a)).
  • In Pentapora fascialis, the presence/absence of ovicells is taken to be a reliable indicator of reproductive status and as such is a feature of sexual maturity (Cocito et al., 1998(b)). In the Skomer Marine Nature Reserve, colonies were reported to have ovicells present in September, indicating a reproduction event in September or late August (Lock et al., 2006). Colonies of Pentapora fascialis as small as 2.8 cm have been recorded as having ovicells. Reproductive ability is gained at an early stage of colony development (Cocito et al., 1998(b)). Larval settling time is inferred from another Cheilostomata bryozoan species, Bugula neritina (Keough & Chernoff, 1987). Gautier (1962) records ovicells being present all year round. Cocito et al., (1998(b)) note the presence of ovicells in Pentapora fascialis in the northwestern Mediterranean from February to October.
  • Patzold et al. (1987) record the formation of a growth band in Pentapora fascialis during times of reduced reproductivity. This growth check line appears during periods of colder water temperatures.
Reproduction References Patzold et al., 1987, Cocito et al., 1998(a), Cocito et al., 1998(b), Eggleston, 1972, Keough & Chernoff, 1987, Gautier, 1962, Lock et al., 2006,
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