BIOTIC Species Information for Pentapora fascialis
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| Researched by | Angus Jackson |
Data supplied by | MarLIN |
| Refereed by | Dr Peter J. Hayward |
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| Reproduction/Life History |
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| Reproductive type | Insufficient information
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Developmental mechanism | Lecithotrophic
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| Reproductive Season | February to October |
Reproductive Location | Insufficient information |
| Reproductive frequency | Annual protracted |
Regeneration potential |
No |
| Life span | 6-10 years |
Age at reproductive maturity | See additional information |
| Generation time | Insufficient information |
Fecundity | Insufficient information |
| Egg/propagule size | Insufficient information |
Fertilization type | Insufficient information |
| Larvae/Juveniles |
| Larval/Juvenile dispersal potential | Insufficient information |
Larval settlement period | Insufficient information |
| Duration of larval stage | <1 day |
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| 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.
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| 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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